Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 1267c Report Date: 09-May-96:16:24 Version: ********** Check-in Date: ********** 1.Proposal Title: INTERSTELLAR MEDIA OF EXTERNAL GALAXIES ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID QUASARS & AGN GTO/FOC Sub Category ABSORPTION LINES ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone J. chris Blades ESA, SPACE TELESCOPE SCIENCE USA (310)338-4805 DR. J. C. BLADES ------------------------------------------------------------------------------------ 7. Abstract This program will study the interstellar gas and dust in external galaxies via UV absorption lines superposed on the spectra of background stars and QSOs. First, we shall observe several early-type supergiants in M31, having a range in reddening and galactocentric distance: the properties of the dust and gas in M31 will be derived, as well as intrinsic properties of the stars. Second, we shall observe several QSOs behind NGC253 and Fornax whose sight-lines probe the outer disks and halos of these galaxies: the column density and extent of absorbing gas will be determined. Finally we shall study several QSOs situated near intervening galaxies whose spectra are already known to show galaxian CaII or NaI. Depending on our target we shall use either the FOS or FOC f/48 spectrograph. ------------------------------------------------------------------------------------ 8. Scientific Key Words: INTERSTELLAR GAS, DUST; EXTERNAL GALAXIES; EARLY TYPE SUPERGIANTS, QSOS ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 11.00 par: 0 10. Num targs pri: 18 par: 0 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 1267c PI: J. chris Blades Proposal Title: INTERSTELLAR MEDIA OF EXTERNAL GALAXIES ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ J. Chris Blades ESA, SPACE TELESCOPE SCIENCE USA X INSTITUTE ------------------------------------------------------------------------------------ 13. This program will study the interstellar gas and dust in external galaxies via the UV absorption lines superposed on the spectra of background stars and QSOs. Depending on our target we shall use either the FOS or FOC f/48 spectrograph. ------------------------------------------------------------------------------------ 11. Address Information Name: J. CHRIS BLADES Category: PI Institution: SPACE TELESCOPE SCIENCE INSTITUTE Address: 3700 SAN MARTIN DRIVE City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 1267c [ 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| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 1 B59-A184 B2I IN BAADE'S F IV LOW RA = 00H 34M 53S +/- 0.1S, 1950 V=-500 1 V=17.7,A(V)=0.4 REDDENING DEC = 39D 44.6' +/- 1" 2 B-V=-0.09 3 U-B=-0.9 ------------------------------------------------------------------------------------------------------------------------------------ 2 A78-NGC206 LOW REDDENING EARLY RA = 00H 37M 50S +/- 0.1S, 1950 V=-400 1 V=17.5,A(V)=0.4 TYPE SUPERGIANT DEC = 40D 27.8' +/- 1" 2 B-V=-0.1 ------------------------------------------------------------------------------------------------------------------------------------ 3 A32-33-36-38 HIGH REDDENING RA = 00H 41M 48S +/- 0.1S, 1950 V=-310 1 V=18.1,A(V)=1.0 HIGH GALACTOCENTRIC DEC = 41D 05M 0" +/- 1" 2 B-V=+0.1 DISTANCE ------------------------------------------------------------------------------------------------------------------------------------ 4 A39-42 HIGH REDDENING RA = 00H 42M 06S +/- 0.1S, 1950 V=-310 1 V=18.7,A(V)=1.6 HIGH GALACTOCENTRIC DEC = 41D 12' 0" +/- 1" 2 B-V=+0.3 DISTANCE ------------------------------------------------------------------------------------------------------------------------------------ 5 A1-14 HIGH REDDENING RA = 00H 41M 30S +/- 0.1S, 1950 V=-300 1 V=18.1,A(V)=1.0 LOW GALACTOCENTRIC DEC = 41D 18' 0" +/- 1" 2 B-V=+0.1 DISTANCE ------------------------------------------------------------------------------------------------------------------------------------ 6 A16-24 HIGH REDDENING RA = 00H 40M 00S +/- 0.1S, 1950 V=-300 1 V=18.7,A(V)=1.0 LOW GALACTOCENTRIC DEC = 41D 09' 0" +/- 1" 2 B-V=+0.3 DISTANCE ------------------------------------------------------------------------------------------------------------------------------------ 7 0330-367 QSO RA = 03H 30M 13.9S +/- 0.1S, 1950 Z=0.64 1 B=16.7 DEC = -36D 45' 03" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 8 0042-248 QSO NEAR NGC253 RA = 00H 42M 00.1S +/- 0.1S, 1950 Z=0.81 1 V=17.3 DEC = -24D 50' 42" +/- 1" 2 B-V=+0.1 ------------------------------------------------------------------------------------------------------------------------------------ 9 0321-374 QSO RA = 03H 21M 59.2S +/- 0.1S, 1950 Z=2.24 1 B=17.4 DEC = -37D 26' 31" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 10 0050-254 QSO NEAR NGC253 RA = 00H 50M 18.1S +/- 0.1S, 1950 Z=0.63 1 V=16.3 DEC = -25D 23' 08" +/- 1" 2 B-V=+0.2 ------------------------------------------------------------------------------------------------------------------------------------ 11 0329-378 QSO RA = 03H 29M 03.2S +/- 0.1S, 1950 Z=1.74 1 B=16.2 DEC = -37D 48' 56" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 16 3C232 QSO-GALAXY PAIR RA = 9H 58M 20.99S +/- 2000 Z=0.553 1 V=15.8 0.02S, DEC = +32D 24' 2.35" +/- 0.3", PLATE-ID = 01RS ------------------------------------------------------------------------------------------------------------------------------------ 17 1327-206 QSO-GALAXY PAIR RA = 13H 30M 7.66S +/- 2000 Z=1.165 1 V=16.9 0.02S, DEC = -20D 56' 16.65" +/- 0.3", PLATE-ID = 020Y ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 1267c [ 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| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 18 2020-370 QSO-GALAXY PAIR RA = 20H 23M 46.31S +/- 2000 Z=1.048 1 V=17.5 0.02S, DEC = -36D 55' 21.55" +/- 0.3", PLATE-ID = 02EC ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1267c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 13 B59-A184 FOC/48 SPEC 256X102 PRISM3 PIXEL=50X25 1 13M 10 1 CYCLE 2/ 13-18 4-SLIT COND IF TAC OK / 13-18 GUID TOL 0.020" / 13-18 ------------------------------------------------------------------------------------------------------------------------------------ 14 A78-NGC206 FOC/48 SPEC 256X102 PRISM3 PIXEL=50X25 1 13M 10 1 4-SLIT ------------------------------------------------------------------------------------------------------------------------------------ 15 A32-33-36- FOC/48 SPEC 256X102 PRISM3 PIXEL=50X25 1 20M 10 1 38 4-SLIT ------------------------------------------------------------------------------------------------------------------------------------ 16 A39-42 FOC/48 SPEC 256X102 PRISM3 PIXEL=50X25 1 20M 10 1 4-SLIT ------------------------------------------------------------------------------------------------------------------------------------ 17 A1-14 FOC/48 SPEC 256X102 PRISM3 PIXEL=50X25 1 30M 10 1 4-SLIT ------------------------------------------------------------------------------------------------------------------------------------ 18 A16-24 FOC/48 SPEC 256X102 PRISM3 PIXEL=50X25 1 30M 10 1 4-SLIT ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 1267c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOC/48 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes SPEC ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters PIXEL=50X25 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/FOC ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 11.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QUASARS & AGN ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ABSORPTION LINES ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 2/ 13-18; COND IF TAC OK / 13-18; GUID TOL 0.020" / 13-18; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements PRISM3 ------------------------------------------------------------------------------------------------------------------------------------ Target Names B59-A184 A78-NGC206 A32-33-36-38 A39-42 A1-14 A16-24 0330-367 0042-248 0321-374 0050-254 0329-378 3C232 1327-206 2020-370 ------------------------------------------------------------------------------------------------------------------------------------