Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 5179 Report Date: 18-Jul-95:17:02 Version: ********** Check-in Date: ********** 1.Proposal Title: STELLAR WINDS IN M31, M33:CYCLE 4 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID STELLAR ASTROPHYSICS GTO/HRS 1150 Sub Category HOT STARS ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Prof. John B. Hutchings DOMINION ASTROPHYSICAL OBSER CANADA (604) 363-0018 PROFESSOR ------------------------------------------------------------------------------------ 7. Abstract We will obtain UV spectra of OB supergiant stars in M33 AND M31 to study stellar wind phenomena (resonance line profiles and velocities, stellar effective temperatures). We will also derive approximate UV extinction curves for these galaxies. These observations relate to global comparisons between galaxies of different types. ------------------------------------------------------------------------------------ 8. Scientific Key Words: HOT STARS, MASS-LOSS, STELLAR WINDS ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 2.00 par: 0 10. Num targs pri: 8 par: 0 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 5179 PI: Prof. John B. Hutchings Proposal Title: STELLAR WINDS IN M31, M33:CYCLE 4 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ P. Massey NOAO, KITT PEAK NATIONAL USA OBSERVATORY John B. Hutchings DOMINION ASTROPHYSICAL CANADA OBSERVATORY ------------------------------------------------------------------------------------ 3. Description of proposed observations. FOS high dispersion spectra will be taken in the range Lambda-Lambda 1100-3000, to derive line profiles and flux distributions, of several selected OB stars. The stars are selected on the basis of ground-based spectroscopy and in some cases, low dispersion IUE spectra. Parallel WFC images in the UV and visible are requested in all fields. Not more than 5 targets to be scheduled. Choice to be made near to observing time. ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. Only ST can obtain UV spectra with the desired resolution and S/N. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). All resources supplied by DAO and KPNO. ------------------------------------------------------------------------------------ 13. Comparative stellar wind studies will be made between M31 and m33 OB stars. Obsevations are FOS high dispersion UV spectra of 2-3 stars from each galaxy, selected from ground-based spectroscopy. ------------------------------------------------------------------------------------ 11. Address Information Name: JOHN B. HUTCHINGS Category: PI Institution: DOMINION ASTROPHYSICAL OBSERVATOR Address: 5071 W. SAANICH RD. V8X 4M6 City: VICTORIA State: BC Zip Code: Country: CANADA Telephone: (604) 363-0018 Telex (or e-mail): 049-7295 ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 5179 [ 3] ------------------------------------------------------------------------------------------------------------------------------------ 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| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 2 OB8-17 B,105 RA=0H 41M 23.19S+/-1", 1950 1 F-CONT(1300)=5+/-3E-15 DEC=41D 15' 29.3"+/-1" ------------------------------------------------------------------------------------------------------------------------------------ 10 M33-N604- B,105 RA=1H 34M 32.317S+/-1", 2000 STARA DEC=30D 46' 58.3"+/-1" Comments: FLUXES KNOWN FROM IUE ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST c)Generic Targets ID = 5179 [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 7 ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Selection Criteria |Acqui|FLX| Flux data No | Name | Description | |Prblm|REF| | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 11 OB8-17-WFC WFC PARALLEL RA=0H 41M 23.19S, DEC= 41D 15' 29.3", R=10' ------------------------------------------------------------------------------------------------------------------------------------ 13 M33-N604- WFC PARALLEL RA=1H 34M 32.317S, STARA-WFC DEC= 30D 46' 58.3", R=10' ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5179 [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 11 OB8-17 FOS/BL ACQ/ 4.3 MIRROR 1 72S 1 ONBOARD ACQ FOR 12 BINARY CYCLE 4 ------------------------------------------------------------------------------------------------------------------------------------ 12 OB8-17 FOS/BL ACCUM 1.0 G160L 1150- 1 2200S 1 CYCLE 4 2510 ------------------------------------------------------------------------------------------------------------------------------------ 13 M33-N604- FOS/BL ACQ/ 4.3 MIRROR 1 35S 1 ONBOARD ACQ FOR 14 STARA BINARY -16 CYCLE 4 ------------------------------------------------------------------------------------------------------------------------------------ 14 M33-N604- FOS/BL ACCUM 1.0 G130H 1150- 1 950S 1 CYCLE 4 STARA 1606 ------------------------------------------------------------------------------------------------------------------------------------ 15 M33-N604- FOS/BL ACCUM 1.0 G190H 1595- 1 375S 1 CYCLE 4 STARA 2282 ------------------------------------------------------------------------------------------------------------------------------------ 16 M33-N604- FOS/BL ACCUM 1.0 G270H 2227- 1 100S 1 CYCLE 4 STARA 3301 ------------------------------------------------------------------------------------------------------------------------------------ 17 M33-N604- WFPC2 IMAGE WFALL F160BW CR-SPLIT=NO 1 15M PAR STARA-WFC CYCLE 4 Comments: EXPOSURE LINKED WITH LINE 14.0 ------------------------------------------------------------------------------------------------------------------------------------ 17.5 M33-N604- WFPC2 IMAGE WFALL F555W 1 6M PAR STARA-WFC CYCLE 4 Comments: EXPOSURE LIKNED WITH LINE 15.0 ------------------------------------------------------------------------------------------------------------------------------------ 18 OB8-17-WFC WFPC2 IMAGE WFALL F160BW CR-SPLIT=NO 1 15M PAR CYCLE 4 Comments: EXPOSURE LINKED WITH LINE 12.0 ------------------------------------------------------------------------------------------------------------------------------------ 19 OB8-17-WFC WFPC2 IMAGE WFALL F555W 1 6M PAR CYCLE 4 Comments: EXPOSURE LINKED WITH LINE 12.0 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 5179 [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/BL WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACCUM IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 2.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category STELLAR ASTROPHYSICS ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category HOT STARS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 12; CYCLE 4 ONBOARD ACQ FOR 14-16; PAR; CYCLE 4; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G160L G130H G190H G270H F160BW F555W ------------------------------------------------------------------------------------------------------------------------------------ Target Names OB8-17 M33-N604-STARA OB8-17-WFC M33-N604-STARA-WFC ------------------------------------------------------------------------------------------------------------------------------------