Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 1048c Report Date: 09-May-96:16:05 Version: ********** Check-in Date: ********** 1.Proposal Title: SUPERNOVA REMNANTS AND NUCLEOSYNTHESIS (FOS 30) -- CYCLE 0 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID INTERSTELLAR MEDIUM GTO/FOS Sub Category SN & SNR ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Arthur F. Davidsen JOHNS HOPKINS UNIVERSITY USA (301) 338-7000 ------------------------------------------------------------------------------------ 7. Abstract UV and optical spectra of six 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. Two SNRs in M33 will be observed to study abundances and abundance gradients of elements not readily available from optical spectra and that are too faint for IUE. An oxygen-rich SNR in NGC 4449 will be observed, taking advantage of the small FOS slits to isolate the SNR from surrounding H II emission. ------------------------------------------------------------------------------------ 8. Scientific Key Words: SUPERNOVA REMNANTS, NUCLEOSYNTHESIS ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 5.46 par: 0 10. Num targs pri: 19 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 1048c PI: Arthur F. Davidsen Proposal Title: SUPERNOVA REMNANTS AND NUCLEOSYNTHESIS (FOS 30) -- CYCLE 0 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ 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 SPACE TELESCOPE SCIENCE USA INSTITUTE ------------------------------------------------------------------------------------ 3. Description of proposed observations. The spatial resolution provided by ST may resolve the emission of the three LMC SNRs into thin filaments. It will be necessary, therefore, to obtain short WFC exposures to permit exact positions for the FOS aperture to be chosen. The slit positions relative to offset stars (also chosen from the WFC images) will be measured and the FOS will be positioned by blind offset. A similar technique will be used to place a smaller FOS slit on the SNR in NGC4449. The M33 SNRs are distant enough and their positions are known well enough that no WFC exposures are needed. Blind offsets from nearby stars (chosen from existing CCD images will be sufficient to place the FOS aperture on these objects. Each object will be observed with a sequence of gratings providing coverage from 1150-6800 A (thus overlapping with existing optical data). Cycle 1 4.1 hours primary, 0 hours parallel Cycle 2 6.9 hours primary, 0 hours parallel Cycle 3 1.9 hours primary, 0 hours parallel ------------------------------------------------------------------------------------ 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 For those programs performing polarimetry, all include the following: Prop ID 1430 Polarimetric Calibration All observations ------------------------------------------------------------------------------------ 12. The two M33 SNRs define a subprogram of this proposal and these data should not be made public until at least one year after all the observations are in hand. 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 six 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 and M33, although the oxygen-rich remnant in NGC 4449 will also be observed. ------------------------------------------------------------------------------------ 11. Address Information Page 3 Name: ARTHUR F. DAVIDSEN Category: PI Institution: JOHNS HOPKINS UNIVERSITY Address: CENTER FOR ASTROPHYSICAL SCIENCES City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 1048c [ 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 N49 SUPERNOVA REMNANT IN RA = 05H 25M 57S +/- 1S, 1950 1 SURF(4861) = 4.7 +/- 2.0 E-15 THE LMC DEC = -66D 07' 32" +/- 5" ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC4449-SNR OXYGEN-RICH SNR IN RA = 12H 25M 44.8S +/- 0.2S, 1950 1 F-LINE(5007)=1.3 +/- 0.3 E-15, NGC4449 DEC = 44D 23M 23.3" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1048c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 5 N49 WFC IMAGE ALL F656N CR-SPLIT=NO 1 1500S 1 1 CYCLE 0 / 5-6 PRE-FLASH=YES Comments: EARLY ACQ FOR EXPOSURES IN LATER CYCLES. ------------------------------------------------------------------------------------------------------------------------------------ 6 ^ ^ ^ ^ F517N CR-SPLIT=NO ^ 1000S ^ PRE-FLASH=YES Comments: EARLY ACQ FOR EXPOSURES IN LATER CYCLES. ------------------------------------------------------------------------------------------------------------------------------------ 10.1 NGC4449-SNR WFC IMAGE ALL F502N CR-SPLIT=NO 1 1600S 1 2 CYCLE 0 / 10.1- PRE-FLASH=YES 10.2 UNPROTECTED Comments: EARLY ACQ FOR EXPOSURES IN LATER CYCLES. ------------------------------------------------------------------------------------------------------------------------------------ 10.2 ^ ^ ^ ^ F517N ^ ^ 1000S ^ UNPROTECTED Comments: EARLY ACQ FOR EXPOSURES IN LATER CYCLES. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 1048c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC ^ ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ^ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO PRE-FLASH=YES ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 5.46 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category INTERSTELLAR MEDIUM ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category SN & SNR ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 0 / 5-6; CYCLE 0 / 10.1-10.2; UNPROTECTED; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F656N F517N F502N ------------------------------------------------------------------------------------------------------------------------------------ Target Names N49 NGC4449-SNR ------------------------------------------------------------------------------------------------------------------------------------