6018( 15) - 11/07/95 15:40 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6018 Version: 15 Check-in Date: ********** 1.Proposal Title: Reading the ``Rosetta Stone'': GHRS Spectroscopy of Individual Stars in R136a ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle Hot Stars GO 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Dr. Sara Heap Goddard Space Flight Center CoI: Dr. Alex de Koter Univ. Space Research Assoc. N CoI: Dr. Ivan Hubeny Univ. Space Research Assoc. N CoI: Dr. Norbert Langer Max Planck Inst. fur Astr., Garching N CoI: Dr. Thierry Lanz Univ. Space Research Assoc. N CoI: Dr. Eliot Malumuth Computer Sciences Corp. N ------------------------------------------------------------------------------------ 6. Abstract We propose to test and refine a new evolutionary scenario for very massive stars ( M>40 Msun) by constructing an empirical isochrone of the dense stellar cluster, R136a, in the LMC. The isochrone will be based on stellar and wind parameters derived from GHRS and FOS spectra of individual stars in the cluster. The isochrone age will be given by the positions of pre-main sequence stars on the HR diagram. The metal content (Z) will be determined directly from GHRS spectra of the less luminous stars in R136a having weak winds. We will construct evolutionary models for each star observed. By requiring that the model match the observed characteristics of each star at the specified cluster age and iron abundance, we will obtain a finely tuned grid of evolutionary models for massive stars. The results of this program should have major consequences for studies of stellar populations with massive stars and for stellar evolution. ------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 2] Observations Description ------------------------ Selection of Targets. GHRS/G140L spectra of four bright objects in R136a, namely R136a1, -a2, -a3, and -a5, have already been obtained. We now need to extend the isochrone down to O8 V stars, because such stars should have weak winds, and thus, be most amenable to photospheric abundance analysis; and their surfaces abundances should reflect the medium out of which they formed (no mixing should have yet occurred). We further require that the stars can be isolated in the GHRS SSA (0.22'' across). The observing list (page 2) below satisfies these criteria. Observing Strategy. We plan four CVZ observing visits to R136a: three for GHRS spectroscopy, and one for FOS spectroscopy. In the three GHRS visits (each 9 CVZ orbits long), we will make all the GHRS/G140L observations on all program stars. In the four visit (7 CVZ orbits long), we will make the FOS observations. The Detailed Observing Program (p. 2) gives the Visit \\# for each star. Since all the targets are so close together, a single guide-star pair will suffice for the whole visit. After guide-star acquisition, we will proceed with target acquisition into the small aperture. Depending on the visit, we will use either R136B or R136a1 as the target- acquisition star. Using the coordinates of Malumuth and Heap (1994) as a guide, we will make blind offsets to each of the program stars for spectral observation. We have already demonstrated (Heap et al. 1994) that it is possible to acquire and obtain spectra of individual stars in R136a without significant contamination from neighboring stars. Upon completing the exposures on one star, the telescope will slew to the next. (We assume an overhead of 4 minutes for small slews.) There is no need to use an integral number of orbits on a given star, so observing efficiency is maximized. Exposure Times. GHRS. For each star observed by GHRS, we will obtain two spectral segments, centered on 1300 Angstrom\\ and 1610 Angstrom, so as to get near-continuous coverage from 1150-1750 Angstrom. This spectral region contains important the wind lines as well as a strongly Fe-blanketed region around 1400 Angstrom. Scaling from our GHRS/COSTAR/G140L observations of R136a5, we estimate that a V=15 star in R136a will produce a count-rate of 0.168 cnt/s/d at Lambda_c=1300 Angstrom\\ and 0.087 cnt/s/d at Lambda_c=1610 Angstrom. Hence, it will take t=100 and 190 min to get G140L/SSA spectra at S/N=33 for Lambda_c=1300Angstrom\\ and 1610Angstrom\\ respectively. FOS. In the last CVZ visit, we will make all the FOS/G400H,G570H observations. The FOS spectra, which contains the H Balmer lines as well as numerous He II and He I lines, should yield an accurate determination of the He abundance and thus, will help constrain the mass-loss rate. We assume that a V=15 star observed in the 0.3'' aperture will produce 2.32 cnt/s/d at either G400H or G570H. Hence, it will take t=18 min to get a spectrum at S/N=50. The spectra should have a resolution (FWHM) of about 200 kms, which is sufficient for our needs. Real Time Justification ----------------------- Effectively, there is only one target, R136a. Because of its coordinates, Alpha =5:30, Delta=-69, it is ideally suited as a CVZ target. And because the program stars all use the same pair of guide stars, observations of each program star can take a fraction of an orbit, yielding the highest observing efficiency possible Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 3] Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: , ------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 4] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 R136A1 EXT-STAR, Wolf Rayet RA=05H 38M 42.439S +/- J2000 V = 12.77+/-0 0.01S,DEC=-69D 06' 02.29" +/- 0.01" 2 R136A3 EXT-STAR, Wolf Rayet RA=05H 38M 42.378S +/- J2000 V = 12.93+/-0 0.01S,DEC=-69D 06' 02.65" +/- 0.01" 3 R136B EXT-STAR, Supergiant O RA=05H 38M 42.788S +/- J2000 V = 13.17+/-0 0.01S,DEC=-69D 06' 03.18" +/- 0.01" 4 R136A2 EXT-STAR, Wolf Rayet RA=05H 38M 42.457S +/- J2000 V = 13.38+/-0 0.01S,DEC=-69D 06' 02.24" +/- 0.01" 5 R136A5 EXT-STAR, Supergiant O RA=05H 38M 42.479S +/- J2000 V = 13.73+/-0 0.01S,DEC=-69D 06' 02.10" +/- 0.01" 6 R136A7 EXT-STAR, Supergiant O RA=05H 38M 42.457S +/- J2000 V = 13.73+/-0 0.01S,DEC=-69D 06' 01.94" +/- 0.01" 7 R136A-618 EXT-STAR, Supergiant O RA=05H 38M 42.745S +/- J2000 V = 14.25+/-0 0.01S,DEC=-69D 06' 01.88" +/- 0.01" 8 R136A-608 EXT-STAR, Supergiant O RA=05H 38M 42.716S +/- J2000 V = 14.39+/-0 0.01S,DEC=-69D 06' 02.21" +/- 0.01" 9 R136A-535 EXT-STAR, Supergiant O RA=05H 38M 42.515S +/- J2000 V = 14.49+/-0 0.01S,DEC=-69D 06' 00.55" +/- 0.01" 10 R136A-354 EXT-STAR, Supergiant O RA=05H 38M 42.137S +/- J2000 V = 14.52+/-0 0.01S,DEC=-69D 06' 01.49" +/- 0.01" 11 R136A-553 EXT-STAR, Supergiant O RA=05H 38M 42.558S +/- J2000 V = 14.56+/-0 0.01S,DEC=-69D 06' 02.66" +/- 0.01" Comments: contamination from 546?? 12 R136A-508 EXT-STAR, Supergiant O RA=05H 38M 42.454S +/- J2000 V = 14.51+/-0 0.01S,DEC=-69D 06' 00.36" +/- 0.01" 13 R136A-602 EXT-STAR, Supergiant O RA=05H 38M 42.691S +/- J2000 V = 14.63+/-0 0.01S,DEC=-69D 06' 01.23" +/- 0.01" 14 R136A-551 EXT-STAR, Main Sequence RA=05H 38M 42.554S +/- J2000 V = 14.81+/-0 O 0.01S,DEC=-69D 06' 04.00" +/- 0.01" 15 R136A-533 EXT-STAR, Main Sequence RA=05H 38M 42.508S +/- J2000 V = 14.81+/-0 O 0.01S,DEC=-69D 06' 01.79" +/- 0.01" 16 R136A-542 EXT-STAR, Main Sequence RA=05H 38M 42.533S +/- J2000 V = 14.86+/-0 O 0.01S,DEC=-69D 06' 01.99" +/- 0.01" 100 R136A1-OFF EXT-STAR, Wolf Rayet R=0.065",PA=245D,FROM 1 J2000 V = 12.77+/-0 Comments: OFFSET TO SW TO EXCLUDE A2 6018( 15) - 11/07/95 15:40 - [ 5] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 110 R136A-553- EXT-STAR, Supergiant O R=0.045",PA=165D,FROM 11 J2000 V = 14.56+/-0 OFF Comments: offset to SE to avoid 546 400 R136A2-OFF EXT-STAR, Wolf Rayet R=0.065",PA=65D,FROM 4 J2000 V = 13.38+/-0 Comments: OFFSET TO NE TO EXCLUDE A1 700 R136A-618- EXT-STAR, Supergiant O R=0.05",PA=315D,FROM 7 J2000 V = 14.25+/-0 OFF Comments: offset to NW to exclude 621 999 MELNICK-34 EXT-STAR, Wolf Rayet RA=05H 38M 44.30S +/- 0.01S,DEC= J2000 V = 13.05+/-0 -69D 06' 5.30" +/- 0.1" Comments: isolated star; coord = MH94 6018( 15) - 11/07/95 15:40 - [ 6] Visit: 01 Visit Requirements: CVZ 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 MELNICK-34 FOS/RD ACQ/PEA 4.3 G570H SEARCH-SIZE- 1 1S ONBOARD ACQ FOR 2 K X=2,SEARCH-SIZE -Y=5,SCAN-STEP- X=2.7,SCAN-STEP -Y=1.23 Comments: ISR#132 STEPS=A+B1+D1+D3, T.A. cleared by CDK 19 Sep 95 ------------------------------------------------------------------------------------------------------------------------------------ 2 MELNICK-34 FOS/RD ACQ/PEA 1.0 G570H SEARCH-SIZE- 1 1S ONBOARD ACQ FOR 3 K X=6,SEARCH-SIZE -Y=2,SCAN-STEP- X=.61,SCAN-STEP -Y=0.61 Comments: STEP=B1; ERR=.43" ------------------------------------------------------------------------------------------------------------------------------------ 3 MELNICK-34 FOS/RD ACQ/PEA 0.3 G570H SEARCH-SIZE- 1 1S ONBOARD ACQ FOR 4 K X=5,SEARCH-SIZE -Y=5,SCAN-STEP- X=.17,SCAN-STEP -Y=0.17 Comments: STEP=D1; ERR=.12" ------------------------------------------------------------------------------------------------------------------------------------ 4 MELNICK-34 FOS/RD ACQ/PEA 0.3 G570H SEARCH-SIZE- 1 3S ONBOARD ACQ FOR 100-115 K X=5,SEARCH-SIZE -Y=5,SCAN-STEP- X=.052,SCAN- STEP-Y=0.052 Comments: STEP=D3 (critical peakup);ERR=.04" ------------------------------------------------------------------------------------------------------------------------------------ 100 R136B FOS/RD ACCUM 0.3 G570H 1 480S Comments: added 3M; removed it ------------------------------------------------------------------------------------------------------------------------------------ 105 R136B FOS/RD ACCUM 0.3 G400H 1 480S Comments: added 3M ------------------------------------------------------------------------------------------------------------------------------------ 110 R136A1-OFF FOS/RD ACCUM 0.3 G570H 1 420S Comments: added 3M; removed it ------------------------------------------------------------------------------------------------------------------------------------ 115 R136A1-OFF FOS/RD ACCUM 0.3 G400H 1 480S Comments: added 3M ------------------------------------------------------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 7] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 119 R136A3 FOS/RD ACQ/PEA 0.3 G570H SEARCH-SIZE- 1 3S ONBOARD ACQ FOR K X=5,SEARCH-SIZE 120,125,130,135,140,145,150,155,160,165,170 -Y=5,SCAN-STEP- ,175,180,185,190,195,210,215,220,225,230,23 X=.052,SCAN- 5,240,245,250,255,260,265 STEP-Y=0.052 Comments: critical peakup again ------------------------------------------------------------------------------------------------------------------------------------ 120 R136A3 FOS/RD ACCUM 0.3 G570H 1 600S Comments: added 3M ------------------------------------------------------------------------------------------------------------------------------------ 125 R136A3 FOS/RD ACCUM 0.3 G400H 1 480S Comments: added 3M ------------------------------------------------------------------------------------------------------------------------------------ 126 R136A3 WFPC2 IMAGE WFALL F439W CR-SPLIT=NO 1 100S PAR WITH 125 ------------------------------------------------------------------------------------------------------------------------------------ 130 R136A2-OFF FOS/RD ACCUM 0.3 G570H 1 600S Comments: added 3M ------------------------------------------------------------------------------------------------------------------------------------ 131 R136A2-OFF WFPC2 IMAGE WFALL F336W CR-SPLIT=NO 1 100S PAR WITH 130 ------------------------------------------------------------------------------------------------------------------------------------ 135 R136A2-OFF FOS/RD ACCUM 0.3 G400H 1 540S Comments: added 4 M ------------------------------------------------------------------------------------------------------------------------------------ 136 R136A2-OFF WFPC2 IMAGE WFALL F439W CR-SPLIT=NO 1 500S PAR WITH 135 ------------------------------------------------------------------------------------------------------------------------------------ 140 R136A5 FOS/RD ACCUM 0.3 G570H 1 900S Comments: added 6 M ------------------------------------------------------------------------------------------------------------------------------------ 141 R136A5 WFPC2 IMAGE WFALL F336W CR-SPLIT=NO 1 500S PAR WITH 140 ------------------------------------------------------------------------------------------------------------------------------------ 145 R136A5 FOS/RD ACCUM 0.3 G400H 1 780S Comments: added 7 M ------------------------------------------------------------------------------------------------------------------------------------ 146 R136A5 WFPC2 IMAGE WFALL F814W CR-SPLIT=NO 1 100S PAR WITH 145 ------------------------------------------------------------------------------------------------------------------------------------ 150 R136A7 FOS/RD ACCUM 0.3 G570H 1 660S Comments: added 3M ------------------------------------------------------------------------------------------------------------------------------------ 151 R136A7 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 200S PAR WITH 150 ------------------------------------------------------------------------------------------------------------------------------------ 155 R136A7 FOS/RD ACCUM 0.3 G400H 1 780S Comments: added 7 M ------------------------------------------------------------------------------------------------------------------------------------ 156 R136A7 WFPC2 IMAGE WFALL F439W CR-SPLIT=NO 1 1000S PAR WITH 155 ------------------------------------------------------------------------------------------------------------------------------------ 160 R136A-618- FOS/RD ACCUM 0.3 G570H 1 900S OFF Comments: added 3M ------------------------------------------------------------------------------------------------------------------------------------ 161 R136A-618- WFPC2 IMAGE WFALL F814W CR-SPLIT=NO 1 800S PAR WITH 160 OFF ------------------------------------------------------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 8] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 165 R136A-618- FOS/RD ACCUM 0.3 G400H 1 1200S OFF Comments: added 11M ------------------------------------------------------------------------------------------------------------------------------------ 166 R136A-618- WFPC2 IMAGE WFALL F336W CR-SPLIT=NO 1 1000S PAR WITH 165 OFF ------------------------------------------------------------------------------------------------------------------------------------ 170 R136A-608 FOS/RD ACCUM 0.3 G570H 1 1080S Comments: added 3M ------------------------------------------------------------------------------------------------------------------------------------ 171 R136A-608 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 800S PAR WITH 170 ------------------------------------------------------------------------------------------------------------------------------------ 175 R136A-608 FOS/RD ACCUM 0.3 G400H 1 1380S Comments: added 12 M ------------------------------------------------------------------------------------------------------------------------------------ 176 R136A-608 WFPC2 IMAGE WFALL F439W CR-SPLIT=NO 1 1000S PAR WITH 175 ------------------------------------------------------------------------------------------------------------------------------------ 180 R136A-535 FOS/RD ACCUM 0.3 G570H 1 1020S Comments: added 1 M ------------------------------------------------------------------------------------------------------------------------------------ 181 R136A-535 WFPC2 IMAGE WFALL F814W CR-SPLIT=NO 1 800S PAR WITH 180 ------------------------------------------------------------------------------------------------------------------------------------ 185 R136A-535 FOS/RD ACCUM 0.3 G400H 1 1500S Comments: added 13M ------------------------------------------------------------------------------------------------------------------------------------ 186 R136A-535 WFPC2 IMAGE WFALL F1042M CR-SPLIT=NO 1 1000S PAR WITH 185 ------------------------------------------------------------------------------------------------------------------------------------ 190 R136A-354 FOS/RD ACCUM 0.3 G570H 1 1020S Comments: added 1 M ------------------------------------------------------------------------------------------------------------------------------------ 191 R136A-354 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 800S PAR WITH 190 ------------------------------------------------------------------------------------------------------------------------------------ 195 R136A-354 FOS/RD ACCUM 0.3 G400H 1 1560S Comments: added 14 M ------------------------------------------------------------------------------------------------------------------------------------ 196 R136A-354 WFPC2 IMAGE WFALL F439W CR-SPLIT=NO 1 1500S PAR WITH 195 ------------------------------------------------------------------------------------------------------------------------------------ 210 R136A-553- FOS/RD ACCUM 0.3 G570H 1 1080S OFF Comments: added 1 M ------------------------------------------------------------------------------------------------------------------------------------ 211 R136A-553- WFPC2 IMAGE WFALL F814W CR-SPLIT=NO 1 1200S PAR WITH 210 OFF ------------------------------------------------------------------------------------------------------------------------------------ 215 R136A-553- FOS/RD ACCUM 0.3 G400H 1 1620S OFF Comments: added 14 M ------------------------------------------------------------------------------------------------------------------------------------ 216 R136A-553- WFPC2 IMAGE WFALL F1042M CR-SPLIT=NO 1 1800S PAR WITH 215 OFF ------------------------------------------------------------------------------------------------------------------------------------ 220 R136A-508 FOS/RD ACCUM 0.3 G570H 1 1020S ------------------------------------------------------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 9] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 221 R136A-508 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 1200S PAR WITH 220 ------------------------------------------------------------------------------------------------------------------------------------ 225 R136A-508 FOS/RD ACCUM 0.3 G400H 1 1500S Comments: added 10 M ------------------------------------------------------------------------------------------------------------------------------------ 226 R136A-508 WFPC2 IMAGE WFALL F439W CR-SPLIT=NO 1 1200S PAR WITH 225 ------------------------------------------------------------------------------------------------------------------------------------ 230 R136A-602 FOS/RD ACCUM 0.3 G570H 1 1080S Comments: added 1 M ------------------------------------------------------------------------------------------------------------------------------------ 231 R136A-602 WFPC2 IMAGE WFALL F814W CR-SPLIT=NO 1 1200S PAR WITH 230 ------------------------------------------------------------------------------------------------------------------------------------ 235 R136A-602 FOS/RD ACCUM 0.3 G400H 1 1620S Comments: added 12M ------------------------------------------------------------------------------------------------------------------------------------ 236 R136A-602 WFPC2 IMAGE WFALL F1042M CR-SPLIT=NO 1 1800S PAR WITH 235 ------------------------------------------------------------------------------------------------------------------------------------ 240 R136A-551 FOS/RD ACCUM 0.3 G570H 1 1320S Comments: added 2 M ------------------------------------------------------------------------------------------------------------------------------------ 241 R136A-551 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 1200S PAR WITH 240 ------------------------------------------------------------------------------------------------------------------------------------ 245 R136A-551 FOS/RD ACCUM 0.3 G400H 1 1620S Comments: added 8 M ------------------------------------------------------------------------------------------------------------------------------------ 246 R136A-551 WFPC2 IMAGE WFALL F814W CR-SPLIT=NO 1 1500S PAR WITH 245 ------------------------------------------------------------------------------------------------------------------------------------ 250 R136A-533 FOS/RD ACCUM 0.3 G570H 1 1320S Comments: added 1 M ------------------------------------------------------------------------------------------------------------------------------------ 251 R136A-533 WFPC2 IMAGE WFALL F814W CR-SPLIT=NO 1 1500S PAR WITH 250 ------------------------------------------------------------------------------------------------------------------------------------ 255 R136A-533 FOS/RD ACCUM 0.3 G400H 1 1620S Comments: added 6M ------------------------------------------------------------------------------------------------------------------------------------ 256 R136A-533 WFPC2 IMAGE WFALL F814W CR-SPLIT=NO 1 1500S PAR WITH 255 ------------------------------------------------------------------------------------------------------------------------------------ 260 R136A-542 FOS/RD ACCUM 0.3 G570H 1 1200S ------------------------------------------------------------------------------------------------------------------------------------ 261 R136A-542 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 1500S PAR WITH 260 ------------------------------------------------------------------------------------------------------------------------------------ 265 R136A-542 FOS/RD ACCUM 0.3 G400H 1 1620S Comments: added 7 M ------------------------------------------------------------------------------------------------------------------------------------ 266 R136A-542 WFPC2 IMAGE WFALL F1042M CR-SPLIT=NO 1 1800S PAR WITH 265 ------------------------------------------------------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 10] Visit: 02 Visit Requirements: CVZ 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 MELNICK-34 HRS ACQ 2.0 MIRROR-N1 BRIGHT=RETURN,S 1 25S ONBOARD ACQ FOR 2 EARCH-SIZE=3 ------------------------------------------------------------------------------------------------------------------------------------ 2 MELNICK-34 HRS ACQ/PEA 2.0 MIRROR-N1 1 102S ONBOARD ACQ FOR 3 KUP Comments: step-time=1S ------------------------------------------------------------------------------------------------------------------------------------ 3 MELNICK-34 HRS ACQ/PEA 0.25 MIRROR-N1 SEARCH-SIZE=5 1 25S ONBOARD ACQ FOR 4 KUP Comments: step-time=1S ------------------------------------------------------------------------------------------------------------------------------------ 4 R136B HRS ACQ/PEA 0.25 MIRROR-N1 SEARCH-SIZE=3 1 25S ONBOARD ACQ FOR 5-241 KUP Comments: step-time=1S ------------------------------------------------------------------------------------------------------------------------------------ 5 R136B HRS IMAGE 0.25 MIRROR-N1 DELTA-X=1,DELTA 1 144S - Y=1,NX=12,NY=12 Comments: DWELL-TIME=1S ------------------------------------------------------------------------------------------------------------------------------------ 100 R136B HRS ACCUM 0.25 G140L 1300 3 598.4S Comments: t=27m; added 3m ------------------------------------------------------------------------------------------------------------------------------------ 101 R136B HRS ACCUM 0.25 G140L 1610 5 598.4S Comments: t=52m ------------------------------------------------------------------------------------------------------------------------------------ 210 R136A-553 HRS ACCUM 0.25 G140L 1300 7 598.4S Comments: t=67m ------------------------------------------------------------------------------------------------------------------------------------ 211 R136A-553 HRS ACCUM 0.25 G140L 1610 12 598.4S Comments: t=127m ------------------------------------------------------------------------------------------------------------------------------------ 230 R136A-602 HRS ACCUM 0.25 G140L 1300 7 598.4S Comments: t=69m ------------------------------------------------------------------------------------------------------------------------------------ 231 R136A-602 HRS ACCUM 0.25 G140L 1610 13 598.4S Comments: t=132m ------------------------------------------------------------------------------------------------------------------------------------ 240 R136A-551 HRS ACCUM 0.25 G140L 1300- 6 897.6S 1300 Comments: t=5400S lowered t on 6 Nov 95 ------------------------------------------------------------------------------------------------------------------------------------ 241 R136A-551 HRS ACCUM 0.25 G140L 1610- 10 979.2S 1610 Comments: t=10000S lowered t on 6 Nov 95 ------------------------------------------------------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 11] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 300 R136A-542 HRS ACCUM 0.25 G140L 1300 9 598.4S Comments: t=87m ------------------------------------------------------------------------------------------------------------------------------------ 301 R136A-542 HRS ACCUM 0.25 G140L 1610- 10 979.2S 1610 Comments: t=10000s raised on 6 Nov 95 ------------------------------------------------------------------------------------------------------------------------------------ 310 R136A-608 HRS ACCUM 0.25 G140L 1300 6 598.4S Comments: t=58m ------------------------------------------------------------------------------------------------------------------------------------ 311 R136A-608 HRS ACCUM 0.25 G140L 1610 10 598.4S Comments: t=109m ------------------------------------------------------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 12] Visit: 03 Visit Requirements: CVZ 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 MELNICK-34 HRS ACQ 2.0 MIRROR-N1 BRIGHT=RETURN,S 1 25S ONBOARD ACQ FOR 2 EARCH-SIZE=3 ------------------------------------------------------------------------------------------------------------------------------------ 2 MELNICK-34 HRS ACQ/PEA 2.0 MIRROR-N1 1 102S ONBOARD ACQ FOR 3 KUP Comments: step-time=1S ------------------------------------------------------------------------------------------------------------------------------------ 3 MELNICK-34 HRS ACQ/PEA 0.25 MIRROR-N1 SEARCH-SIZE=5 1 25S ONBOARD ACQ FOR 100-231 KUP Comments: step-time=1S ------------------------------------------------------------------------------------------------------------------------------------ 100 R136A7 HRS ACCUM 0.25 G140L 1300 3 598.4S Comments: t=30m ------------------------------------------------------------------------------------------------------------------------------------ 101 R136A7 HRS ACCUM 0.25 G140L 1610 6 598.4S Comments: t=58m ------------------------------------------------------------------------------------------------------------------------------------ 210 R136A-533 HRS ACCUM 0.25 G140L 1300 8 598.4S Comments: t=83m ------------------------------------------------------------------------------------------------------------------------------------ 211 R136A-533 HRS ACCUM 0.25 G140L 1610 14 598.4S Comments: t=158m ------------------------------------------------------------------------------------------------------------------------------------ 230 R136A-535 HRS ACCUM 0.25 G140L 1300 7 516.8S Comments: t=63m ------------------------------------------------------------------------------------------------------------------------------------ 231 R136A-535 HRS ACCUM 0.25 G140L 1610 12 598.4S ------------------------------------------------------------------------------------------------------------------------------------ 239 R136A-354 HRS ACQ/PEA 0.25 MIRROR-N1 SEARCH-SIZE=5 1 25S ONBOARD ACQ FOR 240-341 KUP Comments: step-time=1S ------------------------------------------------------------------------------------------------------------------------------------ 240 R136A-354 HRS ACCUM 0.25 G140L 1300 7 516.8S Comments: t=63m ------------------------------------------------------------------------------------------------------------------------------------ 241 R136A-354 HRS ACCUM 0.25 G140L 1610 12 598.4S ------------------------------------------------------------------------------------------------------------------------------------ 330 R136A-618 HRS ACCUM 0.25 G140L 1300 5 598.4S Comments: t=50m ------------------------------------------------------------------------------------------------------------------------------------ 331 R136A-618 HRS ACCUM 0.25 G140L 1610 10 598.4S Comments: t=96m ------------------------------------------------------------------------------------------------------------------------------------ 340 R136A-508 HRS ACCUM 0.25 G140L 1470 3 1360S Comments: t=69m ------------------------------------------------------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 13] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 341 R136A-508 HRS ACCUM 0.25 G140L 1610 7 598.4S Comments: t=about 70m ------------------------------------------------------------------------------------------------------------------------------------ 6018( 15) - 11/07/95 15:40 - [ 14] Summary Form for Proposal 6018 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD WFPC2 HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAK ACCUM IMAGE ACQ ACQ/PEAKUP ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SEARCH-SIZE-X=2 SEARCH-SIZE-Y=5 SCAN-STEP-X=2.7 SCAN-STEP-Y=1.23 SCAN-STEP-Y=0.61 SCAN-STEP-Y=0.17 SCAN-STEP-Y=0.052 SCAN-STEP-X=.052 CR-SPLIT=NO SEARCH-SIZE=3 SEARCH-SIZE=5 NY=12 BRIGHT=RETURN ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category Hot Stars ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CVZ ONBOARD ACQ FOR 2 ONBOARD ACQ FOR 3 ONBOARD ACQ FOR 4 ONBOARD ACQ FOR 100-115 ONBOARD ACQ FOR 120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,210,215,220,225,230,235,240,245,250 ,255,260,265 PAR WITH 125 PAR WITH 130 PAR WITH 135 PAR WITH 140 PAR WITH 145 PAR WITH 150 PAR WITH 155 PAR WITH 160 PAR WITH 165 PAR WITH 170 PAR WITH 175 PAR WITH 180 PAR WITH 185 PAR WITH 190 PAR WITH 195 PAR WITH 210 PAR WITH 215 PAR WITH 220 PAR WITH 225 PAR WITH 230 PAR WITH 235 PAR WITH 240 PAR WITH 245 PAR WITH 250 PAR WITH 255 PAR WITH 260 PAR WITH 265 ONBOARD ACQ FOR 5-241 ONBOARD ACQ FOR 100-231 ONBOARD ACQ FOR 240-341 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G570H G400H F439W F336W F814W F547M F1042M MIRROR-N1 G140L ------------------------------------------------------------------------------------------------------------------------------------ Target Names MELNICK-34 R136B R136A1-OFF R136A3 R136A2-OFF R136A5 R136A7 R136A-618-OFF R136A-608 R136A-535 R136A-354 R136A-553-OFF R136A-508 R136A-602 R136A-551 R136A-533 R136A-542 R136A-553 R136A-618 ------------------------------------------------------------------------------------------------------------------------------------