Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 1022c Report Date: 09-May-96:16:02 Version: ********** Check-in Date: ********** 1.Proposal Title: DO GALAXIES PRODUCE QUASAR ABSORPTION LINES? (CYCLE 0) ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID QUASARS & AGN GTO/OS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Dr. John N. Bahcall INSTITUTE FOR ADVANCED STUDY USA (609) 734-8054 DR. JOHN N. BAHCALL ------------------------------------------------------------------------------------ 7. Abstract SPECTRA WILL BE OBTAINED WITH THE FOS FOR A NUMBER OF QUASARS SMALL ANGULAR SEPARATION ON THE SKY FROM GALAXIES OR GALAXY V MARK 205, 3C 232, PKS 2020-370, THE GRAVITATIONALLY LENSED QU OBJECTS BEHIND THE BOOTES GALAXY VOID, US 1329 (BEHIND THE BA GALAXY VOID), AND 5C 03.44 (BEHIND M 31). THE SPECTRA WILL BE HYPOTHESIS THAT SOME METALLIC QUASAR ABSORPTION SYSTEMS ARE C LARGE GALAXY HALOS OR DISKS. WF/PC IMAGES WILL ALSO BE OBTAIN GALAXY, 2237+0305, IN ORDER TO LOCATE ACCURATELY THE QUASAR P MEASURE THE SURFACE BRIGHTNESS OF THE INNER REGION OF THE GAL OBSERVATIONS ARE REQUIRED BECAUSE, FOR THE SMALL REDSHIFTS AT WITH LARGE ANGULAR SIZE ARE FOUND, THE RESONANT ATOMIC LINES ULTRAVIOLET. ------------------------------------------------------------------------------------ 8. Scientific Key Words: QUASAR, SPECTROSCOPY, ABSORPTION LINE, GALAXY, GRAVITATIONAL LENS ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 4.73 par: 0 10. Num targs pri: 11 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 1022c PI: Dr. John N. Bahcall Proposal Title: DO GALAXIES PRODUCE QUASAR ABSORPTION LINES? (CYCLE 0) ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ John N. Bahcall INSTITUTE FOR ADVANCED STUDY USA Kavan Ratnatunga INSTITUTE FOR ADVANCED STUDY USA Neta A. Bahcall SPACE TELESCOPE SCIENCE USA INSTITUTE ------------------------------------------------------------------------------------ 3. Description of proposed observations. Eleven objects behind galaxy halos or voids will be observed Cycle 1 (1-6 months, SV) = Exposures 4,5,6,22,24,38,40 Cycle 2 (7-18 months) = Exposures 1,2,3,8,9,10,14,15,22,23,33 Cycle 3 + 4 (19-30 months) = Exposures 7,11,12,13,16,17,18,19 Exposures 6,24 and 40 should be taken consecutively. They wil position of the quasar relative to the center of the galaxy 2 would be desirable if the low dispersion observation with the could be scheduled within one week of exposures 6, 24 and 40 essential. We want to avoid large variations of the quasar re galaxy in the period between the imaging exposures 6,24, and spectroscopic observation in exposure 22. Exposures 6, 24 and 40 should be centered on the center of on (immaterial which one). ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. ST observations are required to reach the relevant ultraviole which the absorption features occur. For 2237+0305, ST observ to locate the quasar images and to measure the characteristic region of the galaxy, a well as to study the absorption lines ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Exposures 6, 24, and 40 should be taken consecutively. They w position of the quasar relative to the center of the galaxy 2 would be desirable if the low dispersion observation with the could be scheduled within one week of exposures 6, 24, and 40 not essential. We want to avoid large variations of the quasa galaxy in the period between the imaging exposures 6, 24, and spectroscopic observation in exposure 22. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. Exposures 6 and 24 should be taken consecutively. Exposures 6 should be centered on thhe center of one CCD (immaterial whic Parallel observations should be as long as possible and in da scheduling permits). ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. The spectra of 3C 232 will be analyzed collaboratively with B (University of Wisconsin) to determine what absorption lines the intervening galaxy NGC 3067. An additional FOS observatio with G130H will be obtained by Savage in his proposal entitle Extragalactic Gaseous Halos." Data reduction and analysis for the other spectroscopic obser performed at IAS, using the IAS VAX facilities and peripheral 2237+0305 will be analyzed with the image processing system d Schneider. Quasar continuum intensities and emission-line equ will be measured at KPNO by R. Green. ------------------------------------------------------------------------------------ 8. Additional comments or special requests. Improved positions for the quasars will be measured optically Green using existing plates. Page 3 ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). Full computing support will be supplied by IAS. Research coll available. ------------------------------------------------------------------------------------ 13. Spectra will be obtained with the FOS for a number of quasars angular separation on the sky from galaxies or galaxy voids, 205, 3C 232, PKS 2020-370, the gravitationally lensed quasar, objects behind the Bootes galaxy void, US 1329 (behind the Ba galaxy void), and 5C 03.44 (behind M 31). The spectra will be hypothesis that some metallic quasar absorption systems are c large galaxy halos or disks. WF/PC images will also be obtain galaxy, 2237+0305, in order to locate accurately the quasar p measure the surface brightness of the inner region of the gal ------------------------------------------------------------------------------------ 11. Address Information Name: JOHN N. BAHCALL Category: PI Institution: INSTITUTE FOR ADVANCED STUDY Address: OLDEN LANE City: PRINCETON State: NJ Zip Code: 08540 Country: USA Telephone: (609) 734-8054 Telex (or e-mail): 837680 ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 1022c [ 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 MARK205 AGN BEHIND NGC4319 RA = 12H 21M 44.1S +/- 0.1S, 2000 Z=0.070 1 V = 15.24 +/- 0.2 DEC = +75D 18' 38" +/- 1.0" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1022c [ 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 MARK205 FOS/RD ACQ/ 4.3 MIRROR BRIGHT=330000.0 1 4.0S 2 ONBOARD ACQ FOR BINARY FAINT=660.0 2.0 SEQ 1-7 NO GAP CYCLE 0 / 1-7 ------------------------------------------------------------------------------------------------------------------------------------ 2 MARK205 FOS/RD ACQ/ 0.25X2. MIRROR TYPE=UP 1 4.0S 2 ONBOARD ACQ FOR 3- PEAK 0 7 SPATIAL SCAN Comments: EL 1-2 SHOULD OCCUR IN FIRST ORBIT. ------------------------------------------------------------------------------------------------------------------------------------ 3 MARK205 FOS/RD RAPID 0.25X2. G270H 2225- READ-TIME=40 1 1600S 20 1 1 SEQ 3-4 NON-INT 0 3300 ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE FOS/RD ACCUM 0.25X2. G270H 2225- 1 DEF 1 0 3300 Comments: EL 3-4 SHOULD OCCUR IN SECOND ORBIT. EXP TIME ON MARK205 MIGHT NEED FINE TUNING TO MATCH OBSERVABILITY WINDOW. ------------------------------------------------------------------------------------------------------------------------------------ 5 MARK205 FOS/RD RAPID 0.25X2. G190H 1580- READ-TIME=40 1 2200S 20 1 1 0 2311 Comments: EL 5 SHOUD OCCUR IN THIRD ORBIT. EXP TIME MIGHT NEED FINE TUNING TO MATCH OBSERVABILITY WINDOW. ------------------------------------------------------------------------------------------------------------------------------------ 6 MARK205 FOS/RD RAPID 0.25X2. G190H 1580- READ-TIME=40 1 1800S 20 1 1 SEQ 6-7 NON-INT 0 2311 ------------------------------------------------------------------------------------------------------------------------------------ 7 WAVE FOS/RD ACCUM 0.25X2. G190H 1580- 1 DEF 1 0 2311 Comments: EL 6-7 SHUOLD OCCUR IN FOURTH ORBIT. EXP TIME ON MARK205 MIGHT NEED FINE TUNING TO MATCH OBSERVABILITY WINDOW. ------------------------------------------------------------------------------------------------------------------------------------ Scan Paramters Form Proposal ID: 1022c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ Data ID: 1 Exposure Logsheet lines: 2.0 FGS Scan: DWELL Dwell Only: dwell points/line: 9 Seconds per dwell: 0.00 Scan width (arc-secs): 0.0000 Scan length (arc-secs): 0.4000 Angle between sides (degrees) 0.00 Number of lines: 1 Scan rate (arc-sec/sec): 0.0000 PA of first scan line (degrees) 90.000 Scan frame (CEL or S/C): S/C Length Offset (arc-sec): 0.2000 Width Offset (arc-sec): 0.0000 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 1022c [ 7] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACQ/PEAK RAPID ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BRIGHT=330000.0 FAINT=660.0 TYPE=UP READ-TIME=40 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/OS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 4.73 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QUASARS & AGN ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 2.0; SEQ 1-7 NO GAP; CYCLE 0 / 1-7 ONBOARD ACQ FOR 3-7; SPATIAL SCAN SEQ 3-4 NON-INT SEQ 6-7 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G270H G190H ------------------------------------------------------------------------------------------------------------------------------------ Target Names MARK205 ------------------------------------------------------------------------------------------------------------------------------------