6589( 7) - 06/24/96 11:37 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6589 Version: 7 Check-in Date: 24-Jun-1996 11:33:39 1.Proposal Title: Associated Absorption Lines in QSOs ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle QSO ABSORPTION LINES GO 6 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Frederick Hamann UNIVERSITY OF CALIFORNIA AT SAN DIEGO CoI: Ed Beaver University of California, San Diego N CoI: E. M. Burbidge University of California, San Diego N CoI: Ross Cohen University of California, San Diego N CoI: Vesa Junkkarinen University of California, San Diego N ------------------------------------------------------------------------------------ 6. Abstract We will combine HST FOS and GHRS observations with ground- based Keck Observatory spectra of several QSOs with known za~ze absorption lines to (1) derive elemental abundances, (2) test the hypothesis that za~ze systems are physically related to the QSOs, and (3) study the physical nature of za~ze regions and their relationship (if any) to other QSO phenomena, such as the X-ray warm absorbers and broad emission lines. The abundance derivations are our ultimate goal because of the broad implications for the formation and evolution of galaxies. Several recent studies suggest that the metallicities in near-QSO environments are often above solar, with a possible trend for higher metallicities at higher redshifts and/or QSO luminosities. The za~ze absorption lines have not yet been fully utilized in this regard, but they could be the best probes available for deriving metal abundances near the centers of high redshift galaxies. HST spectra are required to measure important diagnostic lines in the UV, while the Keck observations (at ~8 km/s resolution) will vastly improve upon existing data for lines accessible from the ground. The combined data will yield the best available measurements of the velocities, column densities and range of ionizations in za~ze systems. We will derive abundances from these data using detailed models of the ionization in each line forming environment. ------------------------------------------------------------------------------------ 6589( 7) - 06/24/96 11:37 - [ 2] Observations Description ------------------------ We will observe 5 QSOs to measure associated absorbtion lines with the FOS/RD and G270H grating. We expect total S/N ratios in the coadded spectra of each object to be between 40 and 60/diode. Real Time Justification ----------------------- None. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: , ------------------------------------------------------------------------------------ 6589( 7) - 06/24/96 11:37 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 PKS0119-046 GALAXY, Quasar RA=1H 19M 55.96S +/- 0.3S, DEC=- 1950 Z=1.97 V = 16.47 4D 37' 7.2" +/- 0.5", PLATE- B-V = 0.46 ID=04MW 2 PKS0237-233 GALAXY, Quasar RA=2H 37M 52.72S +/- 0.3S, DEC=- 1950 Z=2.20 V = 16.63 23D 22' 8.5" +/- 0.5", PLATE- B-V = 0.15 ID=025B 3 Q0848+163 GALAXY, QSO RA=8H 48M 53.7S +/- 0.3S, 1950 Z=1.93 V = 16.9 DEC=16D 23' 39.8" +/- 0.5", B-V = -0.20 PLATE-ID=0204 4 3C298 GALAXY, Quasar RA=14H 16M 38.78S +/- 0.3S, 1950 Z=1.44 V = 16.8 DEC=6D 42' 20.9" +/- 0.5", PLATE B-V = 0.33 -ID=01AN 6589( 7) - 06/24/96 11:37 - [ 4] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 PKS0119-046 FOS/RD ACQ/BIN 4.3 MIRROR 1 10.7 S ONBOARD ACQ FOR 2-4 ARY ------------------------------------------------------------------------------------------------------------------------------------ 2 PKS0119-046 FOS/RD ACCUM 1.0 G270H 2223-32 1 1700 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 3 PKS0119-046 FOS/RD ACCUM 1.0 G270H 2223-32 1 2400 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 4 PKS0119-046 FOS/RD ACCUM 1.0 G270H 2223-32 1 2400 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 6589( 7) - 06/24/96 11:37 - [ 5] Visit: 02 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 PKS0237-233 FOS/RD ACQ/BIN 4.3 MIRROR 1 10.7 S ONBOARD ACQ FOR 2-3 ARY ------------------------------------------------------------------------------------------------------------------------------------ 2 PKS0237-233 FOS/RD ACCUM 1.0 G270H 2223-32 1 1700 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 3 PKS0237-233 FOS/RD ACCUM 1.0 G270H 2223-32 1 2400 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 4 PKS0237-233 FOS/RD ACCUM 1.0 G270H 2223-32 1 2400 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 6589( 7) - 06/24/96 11:37 - [ 6] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 Q0848+163 FOS/RD ACQ/BIN 4.3 MIRROR 1 10.7 S ONBOARD ACQ FOR 2-4 ARY ------------------------------------------------------------------------------------------------------------------------------------ 2 Q0848+163 FOS/RD ACCUM 1.0 G270H 2223-32 1 1700 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 3 Q0848+163 FOS/RD ACCUM 1.0 G270H 2223-32 1 2400 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 4 Q0848+163 FOS/RD ACCUM 1.0 G270H 2223-32 1 2400 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 6589( 7) - 06/24/96 11:37 - [ 7] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 3C298 FOS/RD ACQ/BIN 4.3 MIRROR 1 10.7 S ONBOARD ACQ FOR 2-3 ARY ------------------------------------------------------------------------------------------------------------------------------------ 2 3C298 FOS/RD ACCUM 1.0 G270H 2223-32 1 1700 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 3 3C298 FOS/RD ACCUM 1.0 G270H 2223-32 1 2400 S EXPAND END ORBIT 78 ------------------------------------------------------------------------------------------------------------------------------------ 6589( 7) - 06/24/96 11:37 - [ 8] Summary Form for Proposal 6589 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QSO ABSORPTION LINES ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 2-4 EXPAND END ORBIT ONBOARD ACQ FOR 2-3 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G270H ------------------------------------------------------------------------------------------------------------------------------------ Target Names PKS0119-046 PKS0237-233 Q0848+163 3C298 ------------------------------------------------------------------------------------------------------------------------------------