Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 5351 Report Date: 16-Nov-95:13:38 Version: ********** Check-in Date: ********** 1.Proposal Title: PROPERTIES OF INTERMEDIATE REDSHIFT GALACTIC DISKS CAUSING DAMPED LY-ALPHA AND 21 CM ABSORPTIONS IN QUASAR SPECTRA: CYCLE4 MEDIUM ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID QUASARS & AGN GO Sub Category QUASAR ABSORPTION ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Jacqueline A Bergeron CNRS INSTITUT D'ASTROPHYSIQU FRANCE (33) (1) 43 20 ------------------------------------------------------------------------------------ 7. Abstract In the past decade, quasar absorption line studies have revealed several important properties of diffuse material distributed in the universe. In particular, damped Ly -alpha absorbers have been found at high redshifts which are assumed to be protogalactic disks. Our goal is to identify this population of absorbers by investigating the nature of 21cm/damped Ly-alpha systems at intermediate z (0.3 to 1). We propose to perform a detailed imaging and spectroscopic study of four 21cm absorbers and three damped Ly-alpha absorber candidates, for which we have acquired subarcsec seeing deep images at CFHT. In six cases, there is an object blended with the quasar image with impact parameters in the range 0.6 to < 3". HST high spatial resolution will give the position, extent, inclination and morphologigal type of the intervening galaxy, and thus the location of the region of the disk/halo probed by the background optical and radio quasar sources. Observations of the damped Ly-alpha absorptions in the quasar spectra will give the HI column densities, which combined with the radio data will allow to derive the HI cloud temperatures and in the cases of extended radio sources the strength of their magnetic fields. The metal absorption lines (CII, CIV and in the optical MgII, MnII, FeII) will be used to relate the properties (ionization level, abundances) of intermediate and high redshift damped Ly-alpha absorbers. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 17.50 par: 0 10. Num targs pri: 7 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 5351 PI: Jacqueline A Bergeron Proposal Title: PROPERTIES OF INTERMEDIATE REDSHIFT GALACTIC DISKS CAUSING DAMPED LY-ALPHA AND 21 CM ABSORPTIONS IN QUASAR SPECTRA: CYCLE4 MEDIUM ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Jacqueline Bergeron 5436 FRANCE X Patrick Boisse 5424 FRANCE X Jean-Michel Deharveng 5446 FRANCE X Vincent Le Brun 5436 FRANCE X ------------------------------------------------------------------------------------ 3. Description of proposed observations. The observing plan combines deep WFPC2 imagery of each quasar field and FOS spectroscopy of the quasars. The imagery aims at studying the characteristics (position, extent, magnitude, color, morphology and inclination) of the galaxy responsible for the absorption in the quasar spectra (in one case the absorber has yet to be discovered). The spectroscopy aims at determining the Ly-alpha absorption strengths and profiles as well as detecting metal absorption lines from the same systems. The spectroscopic observations will concern 5 of the 7 targets since the information is already available from optical data for the high z 21cm/damped Ly-alpha absorber and is planned in a GTO program for another target (we will retrieve these data from the data bank). Imagery: for each target, an exposure as long as 3600 s with the F702W (wide R) filter is needed to obtain the desired morphological information (a S/N of about 7 per PC pixel is reached for a typical galaxy surface brightness m(R)=22/square arcsec). These long exposures are not duplicates of much shorter exposures which are listed for 3 of our targets in the GTO/cycle4 catalog. In about 2000 s exposure with the less efficient F450W (wide B) filter, we will obtain color information and global properties of star formation activity for each absorber. Because of its high redshift, the absorber along the line of sight to MC1331+170 is a special case and will be better observed with the filters F702W and F814W. The exposure times have been changed accordingly. Most of the exposures have to be split into Imagery (cont'd): sub-exposures in order to reduce the blooming due to the light from the quasar (it will in addition serve for cosmic-ray removal). Given the B and V mag of the quasars, this strategy is a trade-off between the signal to noise penalty resulting from multiple read-out (non negligible contribution from the RON) and the desire to stay below 300000e (3 times blooming threshold) in the central pixel of the PC PSF (assuming worst case; Handbook Table 5.1). Spectroscopy: the choice of operating modes and exposure times are based on direct comparison with the quasar absorption line key program. Spectra with the G190H and G270H and SNRs of about 30 per resolution element are planned for the three brighter targets. Identical exposure times are chosen for the 2 quasars with associated 21cm absorption (similar U and V mag) and sligthly shorter ones for the quasar with a predicted damped Ly-alpha absorption (0.5 mag brighter in U and similar UV flux than 1 of the above 2 targets). Spectra with the G160L and blue digicon and a SNR of 20 are needed for the 2 fainter quasars to explore the Lyman edge and the strongest lines of the Lyman series (observed equivalent widths larger than 3A). They will constrain the HI column density if the absorption systems are barely damped (for the 21cm absorber the background radio source is extended and the other absorber is a damped Ly-alpha candidate). The G160L exposures are identical (similar U and V mag after removal of strong emission lines). These observations are complementary to a G160L/red digicon GTO program. Page 3 ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. The HST provides imagery with unprecedented angular resolution to discover and separate the galaxy from the quasar and study its morphology. The targets have been tested to be beyond ground-based capabilities. The FOS provides access to the Ly-alpha, Lyman edge and CIV spectral ranges. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. ------------------------------------------------------------------------------------ 8. Additional comments or special requests. ------------------------------------------------------------------------------------ 9. Description of previous HST work. JB is co-I of the GO program 2424-KP "Quasar absorption line survey" JMD is member of the FOC-IDT and PI/co-I of several GTO programs JMD and JB are respectively PI and co-I of the GO cycle 2 program 3483 "Ly-alpha emission in galaxies: the case of galaxies causing the z=0.5 MgII absorption-line systems in QSO spectra" ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). Institut d'Astrophysique and Laboratoire d'Astronomie Spatiale will provide data -analysis capabilities and research assistance. ------------------------------------------------------------------------------------ 11. Address Information Name: JACQUELINE BERGERON Category: PI Institution: 5436 Address: 98 BIS BVD ARAGO City: PARIS State: Zip Code: 75014 Country: FRANCE Telephone: (33) (1) 43 20 14 25 Telex (or e-mail): e-mail IAPOBS::BERGERON ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 5351 [ 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 EX0302-223 E,313, RA = 3H 4M 49.82S +/- 0.1S, 2000 Z = 1 V=16.40 H,515,516, DEC = -22D 11' 51.9" +/- 1", 1.409 2 B=16.43 PLATE-ID=014E 3 U=15.53 Comments: ABSORBER REDSHIFT 1.009 ------------------------------------------------------------------------------------------------------------------------------------ 2 PKS0454+039 E,314, RA = 4H 56M 47.17S +/- 0.1S, 2000 Z = 1 V=16.53 H,515,516, DEC = +4D 0' 52.7" +/- 1", 1.345 2 B=16.76 PLATE-ID=02V3 3 U=15.95 4 F(2700)=2.0 +/-0.5 E-15 Comments: ABSORBER REDSHIFT 0.8597 ------------------------------------------------------------------------------------------------------------------------------------ 3 3C196.0 E,314, RA = 8H 13M 36.06S +/- 0.1S, 2000 Z = 1 V=17.79 H,515,516, DEC = +48D 13' 2.7" +/- 1", 0.871 2 B=18.36 PLATE-ID=02HE 3 U=17.93 Comments: ABSORBER REDSHIFT 0.4368 ------------------------------------------------------------------------------------------------------------------------------------ 4 1209.1+10.7 E,313, RA = 12H 11M 40.62S +/- 2000 Z = 1 V=17.76 H,515,516, 0.1S, 2.191 2 B=17.76 DEC = +10D 30' 2.5" +/- 1", 3 U=17.22 PLATE-ID=01TJ Comments: ABSORBER REDSHIFT 0.6295 ------------------------------------------------------------------------------------------------------------------------------------ 5 PKS1229-02 E,314, RA = 12H 32M 0.00S +/- 0.1S, 2000 Z = 1 V=16.75 H,515,516, DEC = -2D 24' 5.4" +/- 1", 1.038 2 B=17.23 PLATE-ID=00BB 3 U=16.57 4 F(1900)=2.0 +/- 0.5 E-15 5 F(2700)=2.0 +/- 0.5 E-15 Comments: ABSORBER REDSHIFT 0.395 ------------------------------------------------------------------------------------------------------------------------------------ 6 3C286.0 E,314, RA = 13H 31M 8.29S +/- 0.1S, 2000 Z = 1 V=17.25 H,515,516, DEC = +30D 30' 32.8" +/- 1", 0.846 2 B=17.51 PLATE-ID=009L 3 U=16.60 Comments: ABSORBER REDSHIFT 0.692 ------------------------------------------------------------------------------------------------------------------------------------ 7 MC1331+170 E,314, RA = 13H 33M 35.79S +/- 2000 Z = 1 V=16.71 H,515,516, 0.1S, 2.084 2 B=16.84 DEC = +16D 49' 3.8" +/- 1", 3 U=16.00 PLATE-ID=01TF Comments: ABSORBER REDSHIFT 1.775 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5351 [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 1.1 EX0302-223 WFPC2 IMAGE PC1 F450W CR-SPLIT=0.5 2 1000 S 5 2 2 CYCLE 4 / 1.1-7.2 CR- TOLERANCE=0.1 Comments: ALTERNATIVELY, COMBINATIONS OF CR-SPLIT=0.4 AND CR-TOL=0.0 OR CR-SPLIT=0.6 AND CR-TOL=0.0 MAY BE USED INSTEAD IF BETTER FOR SCHEDULE. YIELDS 4 SUB- EXPOSURES WITH TEXP FROM 400- 600S EACH AND TOTAL TEXP=2000S. ------------------------------------------------------------------------------------------------------------------------------------ 1.2 EX0302-223 WFPC2 IMAGE PC1 F702W CR-SPLIT=0.5 3 1200 S 7 1 2 CR- TOLERANCE=0.0 Comments: NOTE: CR-TOLERANCE=0.0 FOR THESE. YIELDS 6 SUB-EXPOSURES OF 600S EACH. IT IS NOT REQUIRED THAT THESE BE GROUPED WITH OR AT THE SAME ORIENT AS F450W EXPOSURES IF BETTER FOR SCHEDULING. ------------------------------------------------------------------------------------------------------------------------------------ 2.1 PKS0454+039 WFPC2 IMAGE PC1 F450W CR-SPLIT=0.5 2 1000 S 5 2 1 CR- TOLERANCE=0.1 Comments: ALTERNATIVELY, COMBINATIONS OF CR-SPLIT=0.4 AND CR-TOL=0.0 OR CR-SPLIT=0.6 AND CR-TOL=0.0 MAY BE USED INSTEAD IF BETTER FOR SCHEDULE. YIELDS 4 SUB- EXPOSURES WITH TEXP FROM 400- 600S EACH AND TOTAL TEXP=2000S. ------------------------------------------------------------------------------------------------------------------------------------ 2.2 PKS0454+039 WFPC2 IMAGE PC1 F702W CR-SPLIT=0.5 3 1200 S 7 1 1 CR- TOLERANCE=0.0 Comments: NOTE: CR-TOLERANCE=0.0 FOR THESE. YIELDS 6 SUB-EXPOSURES OF 600S EACH. IT IS NOT REQUIRED THAT THESE BE GROUPED WITH OR AT THE SAME ORIENT AS F450W EXPOSURES IF BETTER FOR SCHEDULING. ------------------------------------------------------------------------------------------------------------------------------------ 2.3 PKS0454+039 FOS/RD ACQ/ 4.3 MIRROR 1 6 S 1 1 ONBOARD ACQ FOR BINARY 2.4-2.5 ------------------------------------------------------------------------------------------------------------------------------------ 2.4 PKS0454+039 FOS/RD ACCUM 1.0- G190H 1900 STEP- 1 3500 S 30 4 1 PAIR PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 2.5 PKS0454+039 FOS/RD ACCUM 1.0- G270H 2700 STEP- 1 1500 S 30 4 1 PAIR PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5351 [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 3.1 3C196.0 WFPC2 IMAGE PC1 F450W CR-SPLIT=0.5 1 2000 S 5 2 1 CR- TOLERANCE=0.1 Comments: ALTERNATIVELY, COMBINATIONS OF CR-SPLIT=0.4 AND CR-TOL=0.0 OR CR-SPLIT=0.6 AND CR-TOL=0.0 MAY BE USED INSTEAD IF BETTER FOR SCHEDULE. YIELDS 2 SUB- EXPOSURES WITH TEXP FROM 800- 1200S EACH AND TOTAL TEXP=2000S. ------------------------------------------------------------------------------------------------------------------------------------ 3.2 3C196.0 WFPC2 IMAGE PC1 F702W CR-SPLIT=0.5 2 1800 S 7 1 1 CR- TOLERANCE=0.0 Comments: NOTE: CR-TOLERANCE=0.0 FOR THESE. YIELDS 4 SUB-EXPOSURES OF 900S EACH. IT IS NOT REQUIRED THAT THESE BE GROUPED WITH OR AT THE SAME ORIENT AS F450W EXPOSURES IF BETTER FOR SCHEDULING. ------------------------------------------------------------------------------------------------------------------------------------ 3.3 3C196.0 FOS/BL ACQ/ 4.3 MIRROR 1 43 S 1 1 ONBOARD ACQ FOR BINARY 3.4 ------------------------------------------------------------------------------------------------------------------------------------ 3.4 3C196.0 FOS/BL ACCUM 1.0- G160L 1600 STEP- 1 3200 S 20 3 1 PAIR PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 4.1 1209.1+10.7 WFPC2 IMAGE PC1 F450W CR-SPLIT=0.5 1 2000 S 5 2 1 CR- TOLERANCE=0.1 Comments: ALTERNATIVELY, COMBINATIONS OF CR-SPLIT=0.4 AND CR-TOL=0.0 OR CR-SPLIT=0.6 AND CR-TOL=0.0 MAY BE USED INSTEAD IF BETTER FOR SCHEDULE. YIELDS 2 SUB- EXPOSURES WITH TEXP FROM 800- 1200S EACH AND TOTAL TEXP=2000S. ------------------------------------------------------------------------------------------------------------------------------------ 4.2 1209.1+10.7 WFPC2 IMAGE PC1 F702W CR-SPLIT=0.5 2 1800 S 7 1 1 CR- TOLERANCE=0.0 Comments: NOTE: CR-TOLERANCE=0.0 FOR THESE. YIELDS 4 SUBEXPOSURES OF 900S EACH. IT IS NOT REQUIRED THAT THESE BE GROUPED WITH OR AT THE SAME ORIENT AS F450W EXPOSURES IF BETTER FOR SCHEDULING. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5351 [ 7] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 4.3 1209.1+10.7 FOS/BL ACQ/ 4.3 MIRROR 1 42 S 1 1 ONBOARD ACQ FOR BINARY 4.4 ------------------------------------------------------------------------------------------------------------------------------------ 4.4 1209.1+10.7 FOS/BL ACCUM 1.0- G160L 1600 STEP- 1 3200 S 20 3 1 PAIR PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 5.1 PKS1229-02 WFPC2 IMAGE PC1 F450W CR-SPLIT=0.5 2 1000 S 5 2 1 CR- TOLERANCE=0.1 Comments: ALTERNATIVELY, COMBINATIONS OF CR-SPLIT=0.4 AND CR-TOL=0.0 OR CR-SPLIT=0.6 AND CR-TOL=0.0 MAY BE USED INSTEAD IF BETTER FOR SCHEDULE. YIELDS 4 SUB- EXPOSURES WITH TEXP FROM 400- 600S EACH AND TOTAL TEXP=2000S. ------------------------------------------------------------------------------------------------------------------------------------ 5.2 PKS1229-02 WFPC2 IMAGE PC1 F702W CR-SPLIT=0.5 3 1200 S 7 1 1 CR- TOLERANCE=0.0 Comments: NOTE: CR-TOLERANCE=0.0 FOR THESE. YIELDS 6 SUB-EXPOSURES OF 600S EACH. IT IS NOT REQUIRED THAT THESE BE GROUPED WITH OR AT THE SAME ORIENT AS F450W EXPOSURES IF BETTER FOR SCHEDULING. ------------------------------------------------------------------------------------------------------------------------------------ 5.3 PKS1229-02 FOS/RD ACQ/ 4.3 MIRROR 1 7.5 S 1 1 ONBOARD ACQ FOR BINARY 5.4-5.5 ------------------------------------------------------------------------------------------------------------------------------------ 5.4 PKS1229-02 FOS/RD ACCUM 1.0- G190H 1900 STEP- 1 4100 S 30 4 1 PAIR PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 5.5 PKS1229-02 FOS/RD ACCUM 1.0- G270H 2700 STEP- 1 1600 S 30 5 1 PAIR PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 6.1 3C286.0 WFPC2 IMAGE PC1 F450W CR-SPLIT=0.5 1 2000 S 5 2 1 CR- TOLERANCE=0.1 Comments: ALTERNATIVELY, COMBINATIONS OF CR-SPLIT=0.4 AND CR-TOL=0.0 OR CR-SPLIT=0.6 AND CR-TOL=0.0 MAY BE USED INSTEAD IF BETTER FOR SCHEDULE. YIELDS 2 SUB- EXPOSURES WITH TEXP FROM 800- 1200S EACH AND TOTAL TEXP=2000S. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5351 [ 8] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 6.2 3C286.0 WFPC2 IMAGE PC1 F702W CR-SPLIT=0.5 2 1800 S 7 1 1 CR- TOLERANCE=0.0 Comments: NOTE: CR-TOLERANCE=0.0 FOR THESE. YIELDS 4 SUB-EXPOSURES OF 900S EACH. IT IS NOT REQUIRED THAT THESE BE GROUPED WITH OR AT THE SAME ORIENT AS F450W EXPOSURES IF BETTER FOR SCHEDULING. ------------------------------------------------------------------------------------------------------------------------------------ 6.3 3C286.0 FOS/RD ACQ/ 4.3 MIRROR 1 12 S 1 1 ONBOARD ACQ FOR BINARY 6.4-6.5 ------------------------------------------------------------------------------------------------------------------------------------ 6.4 3C286.0 FOS/RD ACCUM 1.0- G190H 1900 STEP- 1 4000 S 30 3 1 PAIR PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 6.5 3C286.0 FOS/RD ACCUM 1.0- G270H 2700 STEP- 1 1600 S 30 3 1 PAIR PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 7.1 MC1331+170 WFPC2 IMAGE PC1 F702W CR-SPLIT=0.4 2 1500 S 5 1 1 CR- TOLERANCE=0.0 Comments: ALTERNATIVELY, COMBINATION OF CR-SPLIT=0.6 AND CR-TOL=0.0 MAY BE USED INSTEAD IF BETTER FOR SCHEDULE. NOTE: CR- TOLERANCE=0.0 FOR THESE. YIELDS 4 SUB-EXPOSURES WITH TEXP FROM 600-900S EACH AND TOTAL TEXP=3000S. ------------------------------------------------------------------------------------------------------------------------------------ 7.2 MC1331+170 WFPC2 IMAGE PC1 F814W CR-SPLIT=0.5 3 1200 S 7 1 1 CR- TOLERANCE=0.0 Comments: NOTE: CR-TOLERANCE=0.0 FOR THESE. YIELDS 6 SUB-EXPOSURES OF 600S EACH. IT IS NOT REQUIRED THAT THESE BE GROUPED WITH OR AT THE SAME ORIENT AS F702W EXPOSURES IF BETTER FOR SCHEDULING. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 5351 [ 9] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 FOS/RD FOS/BL ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ACQ/BINARY ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=0.5 CR-TOLERANCE=0.1 CR-TOLERANCE=0.0 STEP-PATT CR-SPLIT=0.4 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GO ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 17.50 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QUASARS & AGN ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category QUASAR ABSORPTION ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 4 / 1.1-7.2; ONBOARD ACQ FOR 2.4-2.5; ONBOARD ACQ FOR 3.4; ONBOARD ACQ FOR 4.4; ONBOARD ACQ FOR 5.4-5.5; ONBOARD ACQ FOR 6.4-6.5; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F450W F702W MIRROR G190H G270H G160L F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names EX0302-223 PKS0454+039 3C196.0 1209.1+10.7 PKS1229-02 3C286.0 MC1331+170 ------------------------------------------------------------------------------------------------------------------------------------