Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 5680 Report Date: 18-Jul-95:17:51 Version: ********** Check-in Date: ********** 1.Proposal Title: SUPERNOVA REMNANTS AND NUCLEOSYNTHESIS (FOS 30): CYCLE4-AUG-CARRYOVER ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID INTERSTELLAR MEDIUM AUG/FOS 5680 Sub Category SN & SNR ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Arthur F. Davidsen JOHNS HOPKINS UNIVERSITY USA (410) 516-7370 ------------------------------------------------------------------------------------ 7. Abstract Overall program: UV and optical spectra of four supernova remnants (SNRs) will be used to study a number of problems related to abundances, grain destruction, interstellar medium properties and physical conditions in SNR shocks. Representatives of three of the main classes of SNRs (Crab-nebula like, Balmer-line and "normal") will be studied in the LMC, where reasonably low reddening permits UV observations. In earlier parts of the program, an oxygen-rich SNR in NGC 4449 was observed, taking advantage of the small FOS slits to isolate the SNR from surrounding H II emission. Two M33 SNRs that were previously part of this proposal have been dropped due to time limitations. This program: FOS UV/optical spectra of two LMC remnants are to be obtained, following up on EARLY ACQ images from cycle 2. This program has been carried over from before the servicing mission in December 1993. ------------------------------------------------------------------------------------ 8. Scientific Key Words: SUPERNOVA REMNANTS, NUCLEOSYNTHESIS ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 14.99 par: 0 10. Num targs pri: 4 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 5680 PI: Arthur F. Davidsen Proposal Title: SUPERNOVA REMNANTS AND NUCLEOSYNTHESIS (FOS 30): CYCLE4-AUG-CARRYOVER ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ William P. Blair JOHNS HOPKINS UNIVERSITY USA Edward Beaver UC, SAN DIEGO USA E. Margaret Burbidge UC, SAN DIEGO USA Frank Bartko APPLIED RESEARCH CORP. USA Bruce Margon WASHINGTON, UNIVERSITY OF USA J. Roger P. Angel ARIZONA, UNIVERSITY OF USA Arthur F. Davidsen JOHNS HOPKINS UNIVERSITY USA Richard J. Harms APPLIED RESEARCH CORPORATION USA Ralph Bohlin SPACE TELESCOPE SCIENCE USA INSTITUTE Holland C. Ford JOHNS HOPKINS UNIVERSITY USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. The spatial resolution provided by ST might resolve the emission of the two LMC SNRs into thin filaments. It was necessary, therefore, to obtain short WFC exposures in Cy2 to permit exact positions for the FOS aperture to be chosen. The slit positions relative to offset stars (also chosen from the WFC images) have been measured and the FOS will be positioned by blind offset. Each object will be observed with a sequence of gratings providing coverage from 1150-8000 A (thus overlapping with existing optical data). Notes added 9/94: The 1.0-PAIR aperture is used with STEP-PATT=SINGLE to provide 28% greater throughput on these extended objects than the 1.0 circular aperture. Also, ACQ/PEAKs are used to acquire the offset stars because the spectral types or colors of the offset stars are not well known. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. The SV prerequisite programs for all FOS observations in this program are: Prop ID 2195 FOS Target Acquisition Tests All observations Prop ID 1317 Int./Ext. Wavelength Offsets 1st target Prop ID 1318 Spectral Flat Fields 1st target Prop ID 1320 Absolute Spectrophotometry 1st visit of bright targets ------------------------------------------------------------------------------------ 12. The two M33 SNRs that have previously been part of this proposal have been dropped from the program due to the time limitations incurred because of the PSF problem. The other objects are interesting each in their own right, and while comparison of one object to another will be useful, the observations of each object define a viable investigation. ------------------------------------------------------------------------------------ 13. UV and optical spectra of two extragalactic supernova remnants will be used to study a number of problems relating to abundances, interstellar medium properties, nucleosynthesis, grain destruction and physical conditions in the remnant shocks. Observations will be concentrated in the LMC. ------------------------------------------------------------------------------------ 11. Address Information Page 3 Name: ARTHUR F. DAVIDSEN Category: PI Institution: JOHNS HOPKINS UNIVERSITY Address: CENTER FOR ASTROPHYSICAL SCIENCES DEPARTMENT OF PHYSICS AND ASTRONOMY City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 5680 [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial |Acqui|FLX| Flux data No | Name | Description | Position |Eqnx | Vel. |Prblm|REF| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 1 STAR1-OFFSET J,707 RA = 05H 19M 55.44S +/- 1", 1950 1 V=14.5 +/- 1 DEC = -69D 05' 04.1" +/- 1" Comments: OFFSET STAR FOR 0519-69-0P1 ASTROMETRY USED COMBINATION OF HST GS CAT AND GROUND BASED IMAGE DATA. ------------------------------------------------------------------------------------------------------------------------------------ 2 STAR2-OFFSET J,707 RA = 05H 40M 13.319S +/- 1", J2000 1 V=14.5 +/- 1 DEC = -69D 19' 58.20" +/- 1", Comments: OFFSET STAR FOR 0540-69-3P1 ASTROMETRY USED COMBINATION OF HST GS CAT AND GROUND BASED IMAGE DATA. ------------------------------------------------------------------------------------------------------------------------------------ 3 0519-69-0P1 H,506 RA-OFF = 0.74S +/- 0.05S, 1950 1 F-LINE(4861)=1.6 +/- 0.5 E-16, DEC-OFF = 3.50" +/- 0.25", FROM 1 Comments: SNR FILAMENT CHOSEN FROM WFC IMAGES ------------------------------------------------------------------------------------------------------------------------------------ 4 0540-69-3P1 H,506 RA = 05H 40M 10.91S +/- 1", J2000 1 F-LINE(5007)=2.6 +/- 0.5 E-16, DEC = -69D 19' 54.71" +/- 1", Comments: SNR FILAMENT CHOSEN FROM WFC IMAGES ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5680 [ 5] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 STAR1- FOS/RD ACQ/ 4.3 MIRROR SCAN-STEP- 1 1.0S 1 1 CYCLE 4 OFFSET PEAK Y=1.204 ONBOARD ACQ FOR 2 SEARCH-SIZE-X=1 SEQ 1-7 SEARCH-SIZE-Y=3 Comments: OFFSET STAR CHOSEN FROM CYCLE 2 EARLY ACQ IMAGES. TIME ASSUMES V=15 A1V STAR. ------------------------------------------------------------------------------------------------------------------------------------ 2 STAR1- FOS/RD ACQ/ 1.0 MIRROR SCAN-STEP- 1 1.0S 1 1 CYCLE 4 OFFSET PEAK X=.602 ONBOARD ACQ FOR 3- SCAN-STEP- 7 Y=.602 SEARCH-SIZE-X=6 SEARCH-SIZE-Y=2 Comments: OFFSET STAR CHOSEN FROM CYCLE 2 EARLY ACQ IMAGES. TIME ASSUMES V=15 A1V STAR. ------------------------------------------------------------------------------------------------------------------------------------ 3 0519-69-0P1 FOS/RD ACCUM 4.3 G270H STEP- 2 1500S 1 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR1-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 4 0519-69-0P1 FOS/RD ACCUM 4.3 G400H STEP- 1 1000S 2 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR1-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 5 0519-69-0P1 FOS/RD ACCUM 4.3 G570H STEP- 1 1500S 2 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR1-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 6 0519-69-0P1 FOS/RD ACCUM 4.3 G780H STEP- 1 1500S 2 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR1-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 7 0519-69-0P1 FOS/BL ACCUM 4.3 G160L STEP- 6 2000S 1 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR1-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 8 STAR2- FOS/RD ACQ/ 4.3 MIRROR SCAN-STEP- 1 7.0S 1 1 CYCLE 4 OFFSET PEAK Y=1.204 ONBOARD ACQ FOR 9 SEARCH-SIZE-X=1 SEQ 10-14 SEARCH-SIZE-Y=3 Comments: OFFSET STAR CHOSEN FROM CYCLE 2 EARLY ACQ IMAGES. TIME ASSUMES V=18 F8V STAR. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5680 [ 6] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 9 STAR2- FOS/RD ACQ/ 1.0 MIRROR SCAN-STEP- 1 7.0S 1 1 CYCLE 4 OFFSET PEAK X=.602 ONBOARD ACQ FOR 10 SCAN-STEP- -14 Y=.602 SEARCH-SIZE-X=6 SEARCH-SIZE-Y=2 Comments: OFFSET STAR CHOSEN FROM CYCLE 2 EARLY ACQ IMAGES. TIME ASSUMES V=18 F8V STAR. ------------------------------------------------------------------------------------------------------------------------------------ 10 0540-69-3P1 FOS/RD ACCUM 4.3 G270H STEP- 2 1500S 1 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR2-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 11 0540-69-3P1 FOS/RD ACCUM 4.3 G400H STEP- 1 1000S 2 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR2-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 12 0540-69-3P1 FOS/RD ACCUM 4.3 G570H STEP- 1 1500S 2 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR2-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 13 0540-69-3P1 FOS/RD ACCUM 4.3 G780H STEP- 1 1500S 2 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR2-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ 14 0540-69-3P1 FOS/BL ACCUM 4.3 G160L STEP- 6 2000S 1 CYCLE 4 PATT=SINGLE Comments: OBJECT POSITION ACQUIRED BY BLIND OFFSET FROM STAR2-OFFSET. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 5680 [ 7] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD FOS/BL ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAK ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCAN-STEP-Y=1.204 SEARCH-SIZE-X=1 SEARCH-SIZE-Y=3 SCAN-STEP-X=.602 SCAN-STEP-Y=.602 SEARCH-SIZE-X=6 SEARCH-SIZE-Y=2 STEP-PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ Proposal for AUG/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 14.99 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category INTERSTELLAR MEDIUM ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category SN & SNR ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 4; ONBOARD ACQ FOR 2; SEQ 1-7; CYCLE 4; ONBOARD ACQ FOR 3-7; CYCLE 4; CYCLE 4; ONBOARD ACQ FOR 9; SEQ 10-14; CYCLE 4; ONBOARD ACQ FOR 10-14; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G270H G400H G570H G780H G160L ------------------------------------------------------------------------------------------------------------------------------------ Target Names STAR1-OFFSET STAR2-OFFSET 0519-69-0P1 0540-69-3P1 ------------------------------------------------------------------------------------------------------------------------------------