Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 1030c Report Date: 09-May-96:16:03 Version: ********** Check-in Date: ********** 1.Proposal Title: GRAVITATIONALLY LENSED QSOS: FUTURE-CYCLE OBSERVATIONS ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID QUASARS & AGN GTO/FOS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone E. margaret Burbidge UC, SAN DIEGO USA (619) 452-4477 ------------------------------------------------------------------------------------ 7. Abstract In two "gravitational lensing" multiple QSOs, we we shall ascertain whether the UV spectra of the images are identical, while searching for absorption lines (especially Lyman alpha) which might exhibit differences and hence give information on sizes of absorbing clouds. ------------------------------------------------------------------------------------ 8. Scientific Key Words: GRAVITATIONAL LENSES, QUASARS, UV ABSORPTION LINES. ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 18.95 par: 0 10. Num targs pri: 6 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 1030c PI: E. margaret Burbidge Proposal Title: GRAVITATIONALLY LENSED QSOS: FUTURE-CYCLE OBSERVATIONS ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Edward Beaver UC, SAN DIEGO USA E. Margaret Burbidge UC, SAN DIEGO USA Bruce Margon WASHINGTON, UNIVERSITY OF USA J. Roger P. Angel ARIZONA, UNIVERSITY OF USA Frank Bartko MARTIN MARIETTA CORPORATION 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. 0957+561 A+B will be observed with the FOS high dispersion UV gratings as will the two brightest images of PG1115+080. 0957+561 C will be observed with the FOS low dispersion UV gratings. Cycle 1: exposures 22-26 Cycle 2: exposures 8-20 ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. We need the UV coverage and the high spatial resolution. ------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------ 13. We will observe 2 cases of gravitationally lensed QSOs to investigate faint additional images and size of clouds producing absorption. ------------------------------------------------------------------------------------ 11. Address Information Name: E. MARGARET BURBIDGE Category: PI Institution: UNIVERSITY OF CALIFORNIA Address: CASS DEPT., C-011 City: LA JOLLA State: CA Zip Code: 92093 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 1030c [ 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 0957+561A BRIGHTEST IMAGE OF RA = 10H 1M 20.867S +/- 2000 Z=1.414 COMP 1 V=16.7 +/- 1.0 GRAVITATIONALLY LENSED 0.5", QUASAR DEC = 55D 53' 53.71" +/- 1.0", PLATE-ID = 01RP, TBD-EARLY Comments: EXACT OFFSETS FROM -OFFSET WILL BE MEASURED FROM WFC IMAGE ------------------------------------------------------------------------------------------------------------------------------------ 2 0957+561B SECOND IMAGE OF RA = 10H 1M 21.030S +/- 2000 Z=1.414 COMP 1 V=17.0 +/- 1.0 GRAVITATIONALLY LENSED 0.5", QUA DEC = 55D 53' 48.42" +/- SAR 1.0", PLATE-ID = 01RP, TBD-EARLY Comments: EXACT OFFSETS FROM -OFFSET WILL BE MEASURED FROM WFC IMAGE ------------------------------------------------------------------------------------------------------------------------------------ 4 PG1115+080A BRIGHTEST IMAGE OF RA = 11H 18M 16.934S +/- 2000 Z=1.722 COMP 1 V=17.0 +/- 1.0 GRAVITATIONALLY LENSED 1.0", 2 F(1500)=2.0 +/- 0.5 E-15 QUASAR DEC = 07D 45' 58.53" +/- 1.0", PLATE-ID = 00ZW, TBD-EARLY Comments: EXACT COORDINATES WILL BE DEFINED FROM WFC IMAGES TAKEN BY WF/PC TEAM THIS IS AN EXTERNAL TARGET FROM #1026 ------------------------------------------------------------------------------------------------------------------------------------ 7 PG1115+080D THE FOURTH IMAGE OF R = 0.50" +/- 0.03", 2000 COMP 1 V=17.3 +/- 1.0 THIS SYSTEM BLENDED PA = 25D +/- 10D, WITH PG1115+080A WHEN FROM 4, TBD-EARLY, SEEN FROM THE GROUND PLATE-ID = 00ZW, Comments: EXACT OFFSETS FROM -OFFSET WILL BE MEASURED FROM WFC IMAGE ------------------------------------------------------------------------------------------------------------------------------------ 14 PG1115+080A- OFFSET STAR FOR RA = 11H 18M 16.934S +/- 2000 1 B=16.3 +/- 1.5 OFFSET PG1115+080A AND D 1.0', DEC = 07D 45' 58.53" +/- 1.0', PLATE-ID = 00ZW, TBD-EARLY Comments: NUMBER 3 ON OUR CHART EXACT OFFSETS FROM -OFFSET WILL BE MEASURED FROM WFC IMAGE THIS IS AN EXTERNAL TARGET FROM PROPOSAL #1026. ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 1030c [ 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| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 15 0957+561A- OFFSET STAR FOR RA = 10H 1M 20.867S +/- 2000 1 V=14.7 +/- 1.0 OFFSET GSC-I 0957+561A, B, AND C 1.0', 3817 1188 DEC = 55D 53' 53.71" +/- 1.0', PLATE-ID = 01RP, TBD-EARLY Comments: NUMBER 1 ON OUR CHART OFFSETS WILL BE MEASURED FROM WFC IMAGES ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1030c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 8 0957+561A- FOS/RD ACQ/ 4.3 MIRROR BRIGHT=720000 1 5.5S 1 2 ONBOARD ACQ FOR 9- OFFSET BINARY 11.5 SEQ 8-11.5 NO GAP CYCLE 2 / 8-16.5 REQ UPDATE Comments: WE WILL UPDATE COORDINATES AND SCEDULE ALL 0957 OBSERVATION AFTER THE WFPC TEAM LETS US LOOK AT IMAGES ------------------------------------------------------------------------------------------------------------------------------------ 9 0957+561A FOS/RD ACQ 1.0 MIRROR 1 11S 1 2 REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 10.999 ^ ^ ACCUM 1.0 G270H 2700 1 9000S 15 1 2 REQ UPDATE COND IF TAC OK ------------------------------------------------------------------------------------------------------------------------------------ 11 ^ ^ ACCUM 1.0 G270H 2700 1 4200S 15 1 2 REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 11.5 ^ ^ ^ ^ G160L 1650 1 500S 15 1 2 REQ UPDATE COND IF TAC OK ------------------------------------------------------------------------------------------------------------------------------------ 13 0957+561A- FOS/RD ACQ/ 4.3 MIRROR BRIGHT=720000 1 5.5S 1 2 ONBOARD ACQ FOR 15 OFFSET BINARY -16.5 SEQ 13-16.5 NO GAP REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 15 0957+561B FOS/RD ACQ 1.0 MIRROR 1 11S 1 2 REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 15.999 ^ ^ ACCUM 1.0 G270H 2700 1 9000S 15 1 2 REQ UPDATE COND IF TAC OK ------------------------------------------------------------------------------------------------------------------------------------ 16 ^ ^ ACCUM 1.0 G270H 2700 1 4200S 15 1 2 REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 16.5 0957+561B FOS/RD ACCUM 1.0 G160L 1650 1 500S 15 1 2 REQ UPDATE COND IF TAC OK ------------------------------------------------------------------------------------------------------------------------------------ 18.58 PG1115+080A FOS/RD ACQ/ 4.3 MIRROR BRIGHT=238313 1 11S 1 2 ONBOARD ACQ FOR -OFFSET BINARY 18.59-18.9 SEQ 18.58-18.9 NO GAP REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 18.59 PG1115+080A FOS/RD ACQ 0.3 MIRROR 1 11S 1 2 REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 18.6 PG1115+080A FOS/RD ACCUM 0.3 G270H 2700 STEP- 1 5500S 15 2 2 REQ UPDATE PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 18.7 PG1115+080A ^ ACCUM 0.3 G190H 1900 STEP- 1 7000S 15 2 2 REQ UPDATE PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 18.9 ^ ^ ^ 0.3 G400H 4000 ^ 1 2400S 15 2 2 REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1030c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 22 PG1115+080A FOS/RD ACQ/ 4.3 MIRROR BRIGHT=238313 1 11S 1 2 ONBOARD ACQ FOR -OFFSET BINARY 22.5-25 SEQ 22-25 NO GAP CYCLE 9 / 18.58-25 REQ UPDATE Comments: DO A BLIND OFFSET FROM THIS STAR TO PG1115+080D. THE OFFSET WILL BE DETERMINED FROM THE WFC IMAGES ------------------------------------------------------------------------------------------------------------------------------------ 22.5 PG1115+080D FOS/RD ACQ 0.3 MIRROR 1 11S 1 2 REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 23 PG1115+080D FOS/RD ACCUM 0.3 G400H 4000 STEP- 1 3100S 15 1 2 REQ UPDATE PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 24 ^ ^ ^ ^ G270H 2700 ^ 1 7500S 15 1 2 REQ UPDATE ------------------------------------------------------------------------------------------------------------------------------------ 25 PG1115+080D FOS/RD ACCUM 0.3 G190H 1900 STEP- 1 10000S 15 1 2 REQ UPDATE PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 1030c [ 7] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD ^ ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACQ ACCUM ^ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BRIGHT STEP-PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 18.95 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QUASARS & AGN ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 9-11.5; SEQ 8-11.5 NO GAP; CYCLE 2 / 8-16.5; REQ UPDATE REQ UPDATE; COND IF TAC OK ONBOARD ACQ FOR 15-16.5; SEQ 13-16.5 NO GAP; ONBOARD ACQ FOR 18.59-18.9; SEQ 18.58-18.9 NO GAP; ONBOARD ACQ FOR 22.5-25; SEQ 22-25 NO GAP; CYCLE 9 / 18.58-25; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G270H G160L G190H G400H ------------------------------------------------------------------------------------------------------------------------------------ Target Names 0957+561A 0957+561B PG1115+080A PG1115+080D PG1115+080A-OFFSET 0957+561A-OFFSET GSC-I 3817 1188 ------------------------------------------------------------------------------------------------------------------------------------