6683( 13) - 12/31/96 16:19 - [ 0] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6683 Version: 13 Check-in Date: 31-Dec-1996 16:12:30 1.Proposal Title: Eclipsing Binaries in the Magellanic Clouds - Fundamental Properties and Distances ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle BINARIES AND STAR FOR GO 6 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Edward Guinan VILLANOVA UNIVERSITY CoI: David Bradstreet Eastern College N CoI: Frank Maloney Villanova University N CoI: Laurence DeWarf Villanova University N CoI: Philip Maurone Villanova University N CoI: Alvaro Gimenez Instituto Nacional de Technica Aerospacial N CoI: Jens Viggo Clausen Copenhagen University Observatory N CoI: William Tobin University of Canterbury N CoI: Virpi Niemela Instituto de Astronomia y Fisica del N Espacio ------------------------------------------------------------------------------------ 6. Abstract We propose to observe 10 O/B eclipsing binaries in the LMC & SMC with the HST/FOS over 1150-7075Angstrom \ to obtain accurate stellar temperatures. These temperatures, coupled with radii and masses derived from our ground-based spectroscopic and photomet ric studies, will yield the first directly determined Mass-Luminosity relation for stars outside the Galaxy. Moreover, these binaries can serve as standard candles allowing the distances to the LMC & SMC to be measured directly with a precision of 10-15\% per binary. The limitation in precision is chiefly due to uncertainties in the absolute radii of the stars arising from errors in masses derived from the sparsely-covered and noisy ground-based radial velocity curves. Thus, we also propose a p ilot study to secure 1\% precision masses and radii for a selected LMC eclipsing binary. This will be accomplished by obtaining high -quality (+/-4 kms) radial velocities of the two stars around its orbit using medium resolution GHRS spectra. It is e stimated from the error budget of these proposed observations that the distance to the LMC will be determined to (square)uig5\% uncertainty. HV 2274 (B1 IV-III + B1 IV-III; V_max = +14.2; P = 5(d)7 days; e = 0.128) was chosen for the pilot study b ecause it is a relatively bright and uncomplicated binary. It also has the advantage of having a well determined apsidal motion from which the internal structures of these low metal abundance LMC stars can be probed. It is only with HST that these objectives can be fully achieved. ------------------------------------------------------------------------------------ Observations Description ------------------------ Part 1: FOS Observations of a Sample of Ten Eclipsing Binaries to Determine Reddening and Accurate Temperatures. (1).The first part deals with the determination of accurate stellar temperatures of the target stars from spectrophotometry, obtained with the FOS using the 1" \\ science aperture, that covers a broad wavelength range of 1150-7075Angstrom. We have car efully selected a total of 10 targets to undertake this initial study. There are about 25 systems for which ground-based work is being carried out. All of the systems selected have light and radial velocity curves (or will within the year). They are, for the most part, uncomplicated binaries with chiefly O8 to B3 components; most are detached binaries and have estimated masses between 8Msun \\ and 25Msun. Four of the targets are members of the SMC, while the remaining 6 stars belong to the LMC. All of these objects have been observed with the low resolution IUE/SWP camera so that their FUV fluxes are known and thus their FOS exposure times can be reliably estimated. We estimate it will take about two contiguous HST orbits per star to acquire, center, and obtain the three FOS spectra. We plan to acquire the targets utilizing the ACQ/BINARY method followed by a 4x4 peak-up into the 0.26" \\ (0.3) aperture. This two-stage sequence (Z + E1/Z + F1 for the Red/Blue detectors) will yield the ne cessary 0.12" \\ accuracy for the 0.9" (1.0) aperture and result in an overhead of less than 25 minutes. The following gratings and detectors will be used: G160L + Blue Detector ( 1140- 2508Angstrom; Resol. = 6.87Angstrom/diode), G270H + Red Detector (2220-3300Angstrom ; Resol. = 2.10Angstrom/diode) , and the G650L + Red Detector (3540-7075Angstrom; Resol. = 25.1Angstrom/diode). The observing strategy is to acquire the target and peakup on the target during the first orbit and obtain the G160L exposure with the Blue Detector. The exposures for our targets with this grating range from 5-25 min. During the unusable part of the next or bit we will prep the Red Detector (about 40 min) and then recenter the star in the aperture and take the exposures of the same target with the G270H and G650L gratings using the Red Detector. The exposures with these gratings are between 5-20 minutes for our targets per spectral region. With a total of 10 targets, we estimate a total HST time request of 20 orbits to complete this part of the program. The estimated spectrophotometric accuracy of these observations is about 2- 3\\% while the S/N is typic ally between 20-50. The spectrophotometric fluxes will be fit with the latest version of the K urucz model atmosphere program (ATLAS-13) in which the metal abundances will be adjusted for the LMC and SMC, respectively. The bolometric corrections will be obtained from ATLAS-13, once the stellar temperatures are determined. The FUV fluxes will also be chec ked against the available IUE fluxes shortward of 1800Angstrom. In simulations that we have carried out with the expected FOS fluxes and estimated accuracies, we expect to be able to determine the mean stellar effective temperatures to (square)uig350K. Curre ntly with the IUE/SWP (1200-1900Angstrom ), the estimated uncertainties in temperatures for these stars is about +/- 1200-1500K. These uncertainties in temperature lead to large uncertainties in the luminosities because of the T^4 dependence. Part 2: GHRS Medium Resolution Study of HV 2271: Eclipsing Binaries as First Class Standard Candles. In part 2 of the program, we will use the GHRS and the G160M grating with the LSA to obtain medium resolution moderate S/N spectra of one of the brighter targets (HV 2274) at several critical orbital phases. This is a pilot study to investigate the feasibilty of using eclipsing binaries as first class standard candles to determine highly accurate (4-7\\%) distances to the MCs as well as other nearby galaxies. Eclipsing binaries, long neglected as accurate distance indicators, can rival or even surp ass other less direct methods. We plan a minimum of 8 visits to the target to measure accurate radial velocities from numerous photospheric spectral features that are present in the FUV. (We chose this small number of visits to keep the telescope time request reasonable, but it wou ld be better to have more observations.) We have selected the spectral region between 1330-1365Angstrom \\ for this study because it is near the maximum flux distribution of early B-type stars and contains several stellar photospheric features, such as FeII/ III and Si II/III. This region also contains the important, strong C II 1335Angstrom \\ photosphere/stellar wind lines and should contain the weak, narrow MWG and LMC C II 1335Angstrom \\ ISM lines. The spectral resolution of the GHRS + G160M grating is about 14 kms \\ per diode. Wavecals will also be obtained during each visit to the target. The rotational velocities of the stars are expected to be about 80 kms. From these spectra, we will be a ble to determine the radial velocity of the absorption line centroids of the components to an accuracy of 3-4 kms. We may be able to improve this even more by using cross- correlation techniques with brighter template stars of the same spectral class. Also the ISM lines included in the spectra can be used as relative spectral markers to calibrate the radial velocities. Near the quadratures of the orbit, where we wish to take most of the HRS spectra, the velocity separation of the two stars is about 35 0 kms \\ so that the individual lines of each star can be easily measured. We have determined that an exposure time of about 25-30 min will yield a HRS spectrum in the 1330 -1365Angstrom \\ wavelength region with a S/N of about 20/1 per diode. An IUE/SWPLLG s pectrum of the star was used to make this estimate. Data Reduction and Analysis The FOS observations will be reduced and analyzed using computer routines available through the STScI. We plan to use IDL as well as IRAF-based reductions and calibrations. The GHRS observations will be reduced using CALHRS routines produced by the GHRS Team in IDL and available at GSFC and at Villanova University. The observations will be reduced and analyzed chiefly by the Villanova team lead by Guinan and Bradstreet. Cl ausen, Gimenez and Tobin will continue to obtain CCD photometry and work on light and radial velocity curves analyses. Niemela will continue to collect ground- based spectroscopic observations and will collaborate in making radial velocity measures. The calibrated FOS spectra will be fit with Kurucz model atmosphere fluxes to determine the effective temperatures of the stars. Bradstreet, Guinan, DeWarf, Maloney, and Maurone have acquired experience doing this with the IUE data. For most of the stars the interstellar reddening (from the line of sight through the MWG) is relatively small : E(B-V) = 0(m)08 and E(B-V) = 0(m)04, for the line of sight to the LMC and the SMC, respectively. From preliminary reddening determinations from the SMC and LMC EBs, the reddening excesses are usually E(B- V) <=sssim 0(m)10. Real Time Justification ----------------------- The observations using the FOS should be scheduled such that they do not occur during eclipses which happen fairly infrequently for all of the binaries in this program. The times of eclipses can be easily calculated from ephemerides which we have in hand for every system. The HRS observations of HV 2274 should be spaced out near times of the orbital quadratures, i.e., when the velocity differences between the components are the greatest. The ephemeris for HV 2274 is Min I = HJD 2448099.8180 + 5.726006E. Ground-based CCD BVR light curves and radial velocity curves are in hand or being obtained by our collaborators chiefly at ESO in Chile (Clausen and Gimenez) , in New Zealand at Mt. John Observatory and using the AAT in Australia (Tobin and gradua te students), and in Argentina (Niemela). As pointed our earlier, the light curves are relatively easy to obtain since they require only 1-2 m class telescopes. The radial velocity programs require larger telescopes and the precision of these data and o rbital phase coverage are not satisfactory in most cases. There is no need to coordinate the proposed HST observations with the ongoing ground-base studies. The ephemerides of these eclipsing binaries are very good, which allow us to combine the data. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: Email: , ------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 1] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SMC-HV1620 EXT-STAR,INTERACTING RA=00H 54M 38.35S +/- 1.0",DEC=- J2000 V = +150 V = 14.30+/-0.1 BINARY,MAIN SEQUENCE O 72D 32' 06.8" +/- 1.0", PLATE- B-V = -0.20+/-0.05 ID=06B1 2 SMC-HV1761 EXT-STAR,B0-B2 V- RA=00H 58M 24.46S +/- 1.0",DEC=- J2000 V = +150 V = 15.70+/-0.10 IV,INTERACTING BINARY 72D 05' 32.2" +/- 1.0", PLATE- B-V = -0.24+/-0.05 ID=06B1 3 SMC-HV1876 EXT-STAR,B0-B2 V- RA=01H 01M 51.69S +/- 1.0",DEC=- J2000 V = +150 V = 15.2+/-0.1 IV,INTERACTING BINARY 72D 21' 53.4" +/- 1.0", PLATE- B-V = -0.20+/-0.05 ID=06B1 4 SMC-HV2226 EXT-STAR,B0-B2 V- RA=01H 24M 31.78S +/- 1.0",DEC=- J2000 V = 150 V = 15.30+/-0.1 IV,INTERACTING BINARY 73D 21' 49.3" +/- 1.0", PLATE- B-V = -0.18+/-0.05 ID=02I5 5 LMC-HV982 EXT-STAR,B0-B2 V- RA=05H 29M 52.52S +/- 1.0",DEC=- J2000 V = +300 V = 14.40+/-0.1 IV,INTERACTING BINARY 69D 09' 22.2" +/- 1.0", PLATE- B-V = -0.20+/-0.05 ID=06B0 6 LMC-HV2241 EXT-STAR,MAIN SEQUENCE RA=04H 57M 15.75S +/- 1.0",DEC=- J2000 V = 300 V = 13.54+/-0.1 O,INTERACTING BINARY 66D 33' 54.5" +/- 1.0", PLATE- B-V = -0.20+/-0.05 ID=06AF E(B-V) = 0.1+/-0.05 7 LMC-HV2274 EXT-STAR,B0-B2 V- RA=05H 02M 40.96S +/- 1.0",DEC=- J2000 V = 300 V = 14.16+/-0.1 IV,INTERACTING BINARY 68D 24' 21.36" +/- 1.", PLATE- B-V = -0.20+/-0.05 ID=05ZW E(B-V) = 0.1+/-0.05 8 LMC-HV5936 EXT-STAR,B0-B2 V- RA=05H 33M 39.0S +/- 2.0",DEC=- J2000 V = 300 V = 15.1+/-0.1 IV,INTERACTING BINARY 66D 37' 39.8" +/- 2.0", PLATE- B-V = -0.18+/-0.05 ID=06B0 E(B-V) = 0.1+/-0.05 9 LMC-HV12634 EXT-STAR,B0-B2 V- RA=05H 40M 57.24S +/- 1.0",DEC=- J2000 V = 300 V = 15.22+/-0.1 IV,INTERACTING BINARY 71D 17' 52.7" +/- 1.0", PLATE- B-V = -0.18+/-0.05 ID=05ZW 10 LMC-EROS1044 EXT-STAR,B0-B2 V- RA=05H 19M 11.82S +/- 1.0",DEC=- J2000 V = 300 V = 15.2+/-0.1 IV,INTERACTING BINARY 69D 42' 24.6" +/- 1.0", PLATE- B-V = -0.10+/-0.05 ID=05ZW 6683( 13) - 12/31/96 16:19 - [ 2] Visit: 01 Visit Requirements: PERIOD 3.62646D AND ZERO-PHASE JD2446426.468000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 SMC-HV1620 FOS/BL ACQ/BIN 4.3 MIRROR 1 2 S ONBOARD ACQ FOR 20 SEQ ARY 10-30 NON-INT PHASE 0.1 TO 0.3632 ------------------------------------------------------------------------------------------------------------------------------------ 20 SMC-HV1620 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 2.5 S ONBOARD ACQ FOR 30-60 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 SMC-HV1620 FOS/BL ACCUM 4.3 G130H 1 830 S ------------------------------------------------------------------------------------------------------------------------------------ 40 SMC-HV1620 FOS/BL ACCUM 4.3 G400H 1 650 S ------------------------------------------------------------------------------------------------------------------------------------ 50 SMC-HV1620 FOS/BL ACCUM 4.3 G270H 1 510 S ------------------------------------------------------------------------------------------------------------------------------------ 60 SMC-HV1620 FOS/BL ACCUM 4.3 G190H 1 650 S ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 3] Visit: 02 Visit Requirements: PERIOD 1.4711182D AND ZERO-PHASE JD2448000.544900 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 SMC-HV1761 FOS/BL ACQ/BIN 4.3 MIRROR 1 9 S SEQ 10-30 NON-INT ONBOARD ARY ACQ FOR 20 PHASE 0.1 TO 0.4 ------------------------------------------------------------------------------------------------------------------------------------ 20 SMC-HV1761 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 15 S ONBOARD ACQ FOR 30-60 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 SMC-HV1761 FOS/BL ACCUM 4.3 G130H 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 40 SMC-HV1761 FOS/BL ACCUM 4.3 G400H 1 440 S PHASE 0.1 TO 0.4 ------------------------------------------------------------------------------------------------------------------------------------ 50 SMC-HV1761 FOS/BL ACCUM 4.3 G270H 1 300 S PHASE 0.1 TO 0.4 ------------------------------------------------------------------------------------------------------------------------------------ 60 SMC-HV1761 FOS/BL ACCUM 4.3 G190H 1 440 S PHASE 0.1 TO 0.4 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 4] Visit: 03 Visit Requirements: PERIOD 2.75830D AND ZERO-PHASE JD2446040.161000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 SMC-HV1876 FOS/BL ACQ/BIN 4.3 MIRROR 1 5 S SEQ 10-30 NON-INT ONBOARD ARY ACQ FOR 20 PHASE 0.1 TO 0.3517 ------------------------------------------------------------------------------------------------------------------------------------ 20 SMC-HV1876 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 8 S ONBOARD ACQ FOR 30-60 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 SMC-HV1876 FOS/BL ACCUM 4.3 G130H 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 40 SMC-HV1876 FOS/BL ACCUM 4.3 G400H 1 650 S ------------------------------------------------------------------------------------------------------------------------------------ 50 SMC-HV1876 FOS/BL ACCUM 4.3 G270H 1 510 S ------------------------------------------------------------------------------------------------------------------------------------ 60 SMC-HV1876 FOS/BL ACCUM 4.3 G190H 1 650 S ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 5] Visit: 04 Visit Requirements: PERIOD 1.900951D AND ZERO-PHASE JD2446007.624200 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 SMC-HV2226 FOS/BL ACQ/BIN 4.3 MIRROR 1 5 S ONBOARD ACQ FOR 20 SEQ ARY 10-30 NON-INT PHASE 0.1 TO 0.3298 ------------------------------------------------------------------------------------------------------------------------------------ 20 SMC-HV2226 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 8 S ONBOARD ACQ FOR 30-60 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 SMC-HV2226 FOS/BL ACCUM 4.3 G130H 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 40 SMC-HV2226 FOS/BL ACCUM 4.3 G400H 1 650 S ------------------------------------------------------------------------------------------------------------------------------------ 50 SMC-HV2226 FOS/BL ACCUM 4.3 G270H 1 510 S ------------------------------------------------------------------------------------------------------------------------------------ 60 SMC-HV2226 FOS/BL ACCUM 4.3 G190H 1 650 S ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 6] Visit: 05 Visit Requirements: PERIOD 5.335268D AND ZERO-PHASE JD2429189.469000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV982 FOS/BL ACQ/BIN 4.3 MIRROR 1 2.5 S ONBOARD ACQ FOR 20 SEQ ARY 10-30 NON-INT PHASE 0.5 TO 0.825 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV982 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 3 S ONBOARD ACQ FOR 30-60 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 LMC-HV982 FOS/BL ACCUM 4.3 G130H 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 40 LMC-HV982 FOS/BL ACCUM 4.3 G400H 1 620 S ------------------------------------------------------------------------------------------------------------------------------------ 50 LMC-HV982 FOS/BL ACCUM 4.3 G270H 1 480 S ------------------------------------------------------------------------------------------------------------------------------------ 60 LMC-HV982 FOS/BL ACCUM 4.3 G190H 1 620 S ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 7] Visit: 06 Visit Requirements: PERIOD 4.342634D AND ZERO-PHASE JD2429219.342000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 LMC-HV2241 FOS/BL ACQ/PEA 4.3 G130H SCAN-STEP-Y=1.23,SEARCH-SIZE-X=1, 1 2 S ONBOARD ACQ FOR 10 SEQ K SEARCH-SIZE-Y=3 5-20 NON-INT PHASE 0.1 TO 0.3693 Comments: Pattern A ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2241 FOS/BL ACQ/PEA 1.0 G130H SCAN-STEP-X=0.61,SCAN-STEP-Y=0.61 1 2 S ONBOARD ACQ FOR 15 K ,SEARCH-SIZE-X=6,SEARCH-SIZE-Y=2 Comments: Pattern B1 ------------------------------------------------------------------------------------------------------------------------------------ 15 LMC-HV2241 FOS/BL ACQ/PEA 0.5 G130H SCAN-STEP-X=0.29,SCAN-STEP-Y=0.29 1 2 S ONBOARD ACQ FOR 20 K ,SEARCH-SIZE-X=3,SEARCH-SIZE-Y=3 Comments: Pattern C1 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2241 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 3 S ONBOARD ACQ FOR 30-60 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 LMC-HV2241 FOS/BL ACCUM 4.3 G130H 1 320 S ------------------------------------------------------------------------------------------------------------------------------------ 40 LMC-HV2241 FOS/BL ACCUM 4.3 G400H 1 440 S ------------------------------------------------------------------------------------------------------------------------------------ 50 LMC-HV2241 FOS/BL ACCUM 4.3 G270H 1 300 S ------------------------------------------------------------------------------------------------------------------------------------ 60 LMC-HV2241 FOS/BL ACCUM 4.3 G190H 1 440 S ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 8] Visit: 07 Visit Requirements: PERIOD 5.726006D AND ZERO-PHASE JD2448099.818000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2274 FOS/BL ACQ/BIN 4.3 MIRROR 1 2.4 S ONBOARD ACQ FOR 20 SEQ ARY 10-30 NON-INT PHASE 0.2 TO 0.2651 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2274 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 3 S ONBOARD ACQ FOR 30-80 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 LMC-HV2274 FOS/BL ACCUM 4.3 G130H 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 40 LMC-HV2274 FOS/BL ACCUM 4.3 G400H 1 680 S ------------------------------------------------------------------------------------------------------------------------------------ 50 LMC-HV2274 FOS/BL ACCUM 4.3 G270H 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 60 LMC-HV2274 FOS/BL ACCUM 4.3 G190H 1 680 S ------------------------------------------------------------------------------------------------------------------------------------ 65 WAVE HRS ACCUM SC2 G160M 1335 1 DEF SAME POS AS 70 SEQ 65-70 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 70 LMC-HV2274 HRS ACCUM 2.0 G160M 1335 FP-SPLIT=TWO 1 1088.0 SAVE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 75 WAVE HRS ACCUM SC2 G160M 1305 1 DEF SEQ 75-80 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 80 LMC-HV2274 HRS ACCUM 2.0 G160M 1305 FP-SPLIT=TWO 1 1033.6 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 9] Visit: 08 Visit Requirements: PERIOD 2.80506810D AND ZERO-PHASE JD2445657.791100 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV5936 FOS/BL ACQ/BIN 4.3 MIRROR 1 4 S ONBOARD ACQ FOR 20 SEQ ARY 10-30 NON-INT PHASE 0.1 TO 0.3525 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV5936 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 6 S ONBOARD ACQ FOR 30-60 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 LMC-HV5936 FOS/BL ACCUM 4.3 G130H 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 40 LMC-HV5936 FOS/BL ACCUM 4.3 G400H 1 620 S ------------------------------------------------------------------------------------------------------------------------------------ 50 LMC-HV5936 FOS/BL ACCUM 4.3 G270H 1 480 S ------------------------------------------------------------------------------------------------------------------------------------ 60 LMC-HV5936 FOS/BL ACCUM 4.3 G190H 1 620 S ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 10] Visit: 09 Visit Requirements: PERIOD 1.18918778D AND ZERO-PHASE JD2446043.669300 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV12634 FOS/BL ACQ/BIN 4.3 MIRROR 1 3.5 S ONBOARD ACQ FOR 20 SEQ ARY 10-30 NON-INT PHASE 0.1 TO 0.2318 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV12634 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 7 S ONBOARD ACQ FOR 30-80 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 LMC-HV12634 FOS/BL ACCUM 1.0 G130H 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 40 LMC-HV12634 FOS/BL ACCUM 1.0 G400H 1 440 S ------------------------------------------------------------------------------------------------------------------------------------ 50 LMC-HV12634 FOS/BL ACCUM 1.0 G270H 1 300 S ------------------------------------------------------------------------------------------------------------------------------------ 60 LMC-HV12634 FOS/BL ACCUM 1.0 G190H 1 440 S ------------------------------------------------------------------------------------------------------------------------------------ 70 WAVE HRS ACCUM SC2 G160M 1305 1 DEF SAME POS AS 80 ------------------------------------------------------------------------------------------------------------------------------------ 80 LMC-HV12634 HRS ACCUM 2.0 G160M 1305 FP-SPLIT=FOUR 1 3264.0 SAVE OFFSET 012634 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 11] Visit: 0A Visit Requirements: PERIOD 1.18918778D AND ZERO-PHASE JD2446043.669300 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 WAVE HRS ACCUM SC2 G160M 1305 1 DEF SAME POS AS 20 SEQ 10-20 NON-INT USE OFFSET 012634 PHASE 0.6 TO 0.84 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV12634 HRS ACCUM 2.0 G160M 1305 FP-SPLIT=FOUR 1 2393.6 USE OFFSET 012634 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 12] Visit: 0B Visit Requirements: PERIOD 2.727D AND ZERO-PHASE JD2448661.898900 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-EROS104 FOS/BL ACQ/BIN 4.3 MIRROR 1 7 S ONBOARD ACQ FOR 20 SEQ 4 ARY 10-30 NON-INT PHASE 0.1 TO 0.3511 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-EROS104 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 15 S ONBOARD ACQ FOR 30-60 4 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 LMC-EROS104 FOS/BL ACCUM 4.3 G130H 1 750 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 40 LMC-EROS104 FOS/BL ACCUM 4.3 G400H 1 620 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 50 LMC-EROS104 FOS/BL ACCUM 4.3 G270H 1 480 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 60 LMC-EROS104 FOS/BL ACCUM 4.3 G190H 1 620 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 13] Visit: 0C Visit Requirements: PERIOD 5.726006D AND ZERO-PHASE JD2448099.818000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2274 HRS ACCUM 2.0 G160M 1335 FP-SPLIT=TWO 1 1142.4 USE OFFSET 002274 PHASE 0.1 TO 0.1767 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2274 HRS ACCUM 2.0 G160M 1305 FP-SPLIT=TWO 1 1196.8 USE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 14] Visit: 0D Visit Requirements: PERIOD 5.726006D AND ZERO-PHASE JD2448099.818000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2274 HRS ACCUM 2.0 G160M 1335 FP-SPLIT=TWO 1 870.4 S USE OFFSET 002274 PHASE 0.2 TO 0.2877 ------------------------------------------------------------------------------------------------------------------------------------ 15 WAVE HRS ACCUM SC2 G160M 1550 1 DEF SAME POS AS 20 SEQ 15-20 NON-INT USE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2274 HRS ACCUM 2.0 G160M 1550 FP-SPLIT=TWO 1 1142.4 USE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 15] Visit: 0E Visit Requirements: PERIOD 5.726006D AND ZERO-PHASE JD2448099.818000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2274 HRS ACCUM 2.0 G160M 1335 FP-SPLIT=TWO 1 1142.4 USE OFFSET 002274 PHASE 0.3 TO 0.3767 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2274 HRS ACCUM 2.0 G160M 1305 FP-SPLIT=TWO 1 1196.8 USE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 16] Visit: 0F Visit Requirements: PERIOD 5.726006D AND ZERO-PHASE JD2448099.818000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2274 HRS ACCUM 2.0 G160M 1335 FP-SPLIT=TWO 1 1142.4 USE OFFSET 002274 PHASE 0.6 TO 0.6767 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2274 HRS ACCUM 2.0 G160M 1305 FP-SPLIT=TWO 1 1196.8 USE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 17] Visit: 0G Visit Requirements: PERIOD 5.726006D AND ZERO-PHASE JD2448099.818000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2274 HRS ACCUM 2.0 G160M 1335 FP-SPLIT=TWO 1 1196.8 USE OFFSET 002274 PHASE 0.7 TO 0.7767 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2274 HRS ACCUM 2.0 G160M 1550 FP-SPLIT=TWO 1 1142.4 USE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 18] Visit: 0H Visit Requirements: PERIOD 5.726006D AND ZERO-PHASE JD2448099.818000 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2274 HRS ACCUM 2.0 G160M 1335 FP-SPLIT=TWO 1 1142.4 USE OFFSET 002274 PHASE 0.8 TO 0.8767 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2274 HRS ACCUM 2.0 G160M 1305 FP-SPLIT=TWO 1 1196.8 USE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 19] Visit: 0I Visit Requirements: PERIOD 5.726006D AND ZERO-PHASE JD2448102.681 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV2274 HRS ACCUM 2.0 G160M 1335 FP-SPLIT=TWO 1 1142.4 USE OFFSET 002274 PHASE 0.48 TO 0.52 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV2274 HRS ACCUM 2.0 G160M 1305 FP-SPLIT=TWO 1 1196.8 USE OFFSET 002274 ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 20] Visit: 55 Visit Requirements: PERIOD 5.335268D AND ZERO-PHASE JD2429189.469000 SCHED 60% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 LMC-HV982 FOS/BL ACQ/BIN 4.3 MIRROR 1 2.5 S ONBOARD ACQ FOR 20 SEQ ARY 10-30 NON-INT PHASE 0.5 TO 0.825 ------------------------------------------------------------------------------------------------------------------------------------ 20 LMC-HV982 FOS/BL ACQ/PEA 0.3 G130H SCAN-STEP-X=0.11,SCAN-STEP-Y=0.11 1 3 S ONBOARD ACQ FOR 30-60 K ,SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 30 LMC-HV982 FOS/BL ACCUM 4.3 G130H 1 560 S MIN DUR MAX DUR ------------------------------------------------------------------------------------------------------------------------------------ 40 LMC-HV982 FOS/BL ACCUM 4.3 G400H 1 620 S MIN DUR MAX DUR ------------------------------------------------------------------------------------------------------------------------------------ 50 LMC-HV982 FOS/BL ACCUM 4.3 G270H 1 480 S MIN DUR MAX DUR ------------------------------------------------------------------------------------------------------------------------------------ 60 LMC-HV982 FOS/BL ACCUM 4.3 G190H 1 740 S MIN DUR MAX DUR ------------------------------------------------------------------------------------------------------------------------------------ 6683( 13) - 12/31/96 16:19 - [ 21] Summary Form for Proposal 6683 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/BL HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACQ/PEAK ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCAN-STEP-X=0.11 SCAN-STEP-Y=0.11 SEARCH-SIZE-X=4 SEARCH-SIZE-Y=4 SEARCH-SIZE-Y=3 SEARCH-SIZE-Y=2 SEARCH-SIZE-X=3 FP-SPLIT=TWO FP-SPLIT=FOUR ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category BINARIES AND STAR FORMATION ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PERIOD 3.62646D AND ZERO-PHASE JD2446426.468000 ONBOARD ACQ FOR 20 SEQ 10-30 NON-INT PHASE 0.1 TO 0.3632 ONBOARD ACQ FOR 30-60 PERIOD 1.4711182D AND ZERO-PHASE JD2448000.544900 SEQ 10-30 NON-INT ONBOARD ACQ FOR 20 PHASE 0.1 TO 0.4 PERIOD 2.75830D AND ZERO-PHASE JD2446040.161000 SEQ 10-30 NON-INT ONBOARD ACQ FOR 20 PHASE 0.1 TO 0.3517 PERIOD 1.900951D AND ZERO-PHASE JD2446007.624200 ONBOARD ACQ FOR 20 SEQ 10-30 NON-INT PHASE 0.1 TO 0.3298 PERIOD 5.335268D AND ZERO-PHASE JD2429189.469000 ONBOARD ACQ FOR 20 SEQ 10-30 NON-INT PHASE 0.5 TO 0.825 PERIOD 4.342634D AND ZERO-PHASE JD2429219.342000 ONBOARD ACQ FOR 10 SEQ 5-20 NON-INT PHASE 0.1 TO 0.3693 ONBOARD ACQ FOR 15 ONBOARD ACQ FOR 20 PERIOD 5.726006D AND ZERO-PHASE JD2448099.818000 ONBOARD ACQ FOR 20 SEQ 10-30 NON-INT PHASE 0.2 TO 0.2651 ONBOARD ACQ FOR 30-80 SAME POS AS 70 SEQ 65-70 NON-INT SAVE OFFSET 002274 SEQ 75-80 NON-INT PERIOD 2.80506810D AND ZERO-PHASE JD2445657.791100 ONBOARD ACQ FOR 20 SEQ 10-30 NON-INT PHASE 0.1 TO 0.3525 PERIOD 1.18918778D AND ZERO-PHASE JD2446043.669300 ONBOARD ACQ FOR 20 SEQ 10-30 NON-INT PHASE 0.1 TO 0.2318 SAME POS AS 80 SAVE OFFSET 012634 SAME POS AS 20 SEQ 10-20 NON-INT USE OFFSET 012634 PHASE 0.6 TO 0.84 USE OFFSET 012634 PERIOD 2.727D AND ZERO-PHASE JD2448661.898900 ONBOARD ACQ FOR 20 SEQ 10-30 NON-INT PHASE 0.1 TO 0.3511 USE OFFSET 002274 PHASE 0.1 TO 0.1767 USE OFFSET 002274 USE OFFSET 002274 PHASE 0.2 TO 0.2877 SAME POS AS 20 SEQ 15-20 NON-INT USE OFFSET 002274 USE OFFSET 002274 PHASE 0.3 TO 0.3767 USE OFFSET 002274 PHASE 0.6 TO 0.6767 USE OFFSET 002274 PHASE 0.7 TO 0.7767 USE OFFSET 002274 PHASE 0.8 TO 0.8767 PERIOD 5.726006D AND ZERO-PHASE JD2448102.681 USE OFFSET 002274 PHASE 0.48 TO 0.52 PERIOD 5.335268D AND ZERO-PHASE JD2429189.469000 SCHED 60% MIN DUR MAX DUR ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G130H G400H G270H G190H G160M ------------------------------------------------------------------------------------------------------------------------------------ Target Names SMC-HV1620 SMC-HV1761 SMC-HV1876 SMC-HV2226 LMC-HV982 LMC-HV2241 LMC-HV2274 WAVE LMC-HV5936 LMC-HV12634 LMC-EROS1044 ------------------------------------------------------------------------------------------------------------------------------------