Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4857c Report Date: 09-May-96:20:02 Version: ********** Check-in Date: ********** 1.Proposal Title: SPECTRA AT LAMBDA <3000 ANGSTROMS FOR QSOS WITH Z~2 (FOS 3): CYCLE 3 MEDIUM ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID QUASARS & AGN GTO/FOS 1028 Sub Category GTO/FOS ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone E. margaret Burbidge UNIVERSITY OF CALIFORNIA, SA USA 619-534-4477 ------------------------------------------------------------------------------------ 7. Abstract This is one of the brightest BAL QSOs. In this object we will study the physical conditions in the absorbing object with observations of high ionization UV lines. We will also detect presently unobserved high ionization emission lines. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 2.71 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4857c PI: E. margaret Burbidge Proposal Title: SPECTRA AT LAMBDA <3000 ANGSTROMS FOR QSOS WITH Z~2 (FOS 3): CYCLE 3 MEDIUM ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Richard J. Harms APPLIED RESEARCH CORPORATION USA Richard G. Allen UNIVERSITY OF ARIZONA USA J. Roger P. Angel UNIVERSITY OF ARIZONA USA Frank Bartko UNAFFILIATED USA Edward Beaver UC, SAN DIEGO USA Ralph C. Bohlin SPACE TELESCOPE SCIENCE USA INSTITUTE Pi E. Margaret Burbidge UC, SAN DIEGO USA Aurthur F. Davidsen JOHNS HOPKINS UNIVERSITY USA Holland C. Ford SPACE TELESCOPE SCIENCE USA INSTITUTE George F. Hartig SPACE TELESCOPE SCIENCE USA INSTITUTE Bruce H. Margon UNIVERSITY OF WASHINGTON USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. Following a binary search target acquisition in the 4.3" aperture with the red detector, a 7000s ACCUM mode observation with G270H will be made. ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. The collecting area of HST and the sensitivity of the FOS and GHRS make it possible to obtain spectra with the signal to noise needed to carry out these studies of QSOs at wavelengths below the atmospheric cutoff. These absorption lines cannot be measured in the optical. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. These observations will be reduced using the standard spectroscopy reduction software available for FOS data. Calibration will be done using the results of SV observations. The absorption features in QSO spectra will be measured using existing software that has been used for optical data and the early HST spectra. ------------------------------------------------------------------------------------ 9. Description of previous HST work. PI has received data from a number of GTO programs, SAT, and ERO programs. Related programs which have had observations are as follows: 1026 - ``UV Spectra of Low-Redshift-QSOs'': related, 1027 - ``UV Spectra of QSOs with z> 3.1'': not related, 1190 - ``FUV Emission LIne Profiles of W Serpentis Binaries'': not related Observations of UM 675 have shown that any He I Gunn--Peterson effect is small, that He I absorption lines are not strong, that predictions of the ``Lyman valley'' may be correct, and that low redshift Ly-alpha is more prevalent than expected. Observations of low redshift QSOs (including 3C 273) have shown even more clearly that Ly-alpha absorption occurs in greater numbers than expected, as well as showing emission--line profile differences more clearly than from earlier data. Unexpectedly, Ly-alpha is {\it narrower} than H-alpha. ``Far--Ultraviolet Spectroscopy of the Quasar UM 675 with the Faint Object Spectrograph on the Hubble Space Telescope'', E.A.Beaver, E.M.Burbidge, R.D.Cohen, V.T.Junkkarinen, R.W.Lyons, E.I.Rosenblatt, G.F.Hartig, B.Margon, and A.F.Davidsen, {\it Ap.J.(Lett.)}, {\bf 377}, L1, 1991. ``First Results from the GHRS: UV Spectra of a Starburst Knot in NGCC 1068'', Hutchings, J.B., Bruhweiler, G.C., Boggess, A., Heap, S.R., Ebbets, D.C., Beaver, E., Rosenblatt, E., Truonmg, K.Q., Perez, M., and Westmacott, R., 1991, APJ (Letters), 377, 1991. Page 3 ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). The majority of the resources required for this project other than the normal facilities of a university (librarys, offices, etc.) were supplied by NASA to the members of the GHRS IDT for these projects. These include all the computing facilities required for the completion of data reduction and analysis. Optical and IR ground--based observing facilities and support are provided by the University of California. ------------------------------------------------------------------------------------ 11. Address Information Name: E. MARGARET BURBIDGE Category: PI Institution: Address: City: State: Zip Code: Country: Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 4857c [ 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| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 5 1246-057 E,314,923, RA = 12H 49M 13.844S +/- 2000 Z=2.212 1 V=17.0 +/- 1.0 H,515,519, 0.3", DEC = -05D 59' 19.34" +/- 0.3", PLATE-ID = 024P ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4857c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 16.51 1246-057 FOS/RD ACQ/ 4.3 MIRROR 1 2S 1 1 ONBOARD ACQ FOR PEAK 16.52 SPATIAL SCAN SEQ 16.51-16.59 NO GAP CYCLE 3 / 16.51- 16.59 ------------------------------------------------------------------------------------------------------------------------------------ 16.52 1246-057 FOS/RD ACQ/ 1.0 MIRROR 1 3S 1 1 ONBOARD ACQ FOR PEAK 16.53 SPATIAL SCAN ------------------------------------------------------------------------------------------------------------------------------------ 16.53 1246-057 FOS/RD ACQ/ 0.5 MIRROR SEARCH-SIZE-X=3 1 6S 1 1 ONBOARD ACQ FOR PEAK SCAN-STEP-X=.35 16.59 SEARCH-SIZE-Y=3 SCAN-STEP-Y=.35 ------------------------------------------------------------------------------------------------------------------------------------ 16.59 1246-057 FOS/RD ACCUM 1.0 G270H 2700 1 7000S 30 1 1 ------------------------------------------------------------------------------------------------------------------------------------ Scan Paramters Form Proposal ID: 4857c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ Data ID: 1 Exposure Logsheet lines: 16.51 FGS Scan: DWELL Dwell Only: dwell points/line: 3 Seconds per dwell: 2.00 Scan width (arc-secs): 0.0000 Scan length (arc-secs): 2.8000 Angle between sides (degrees) 90.00 Number of lines: 1 Scan rate (arc-sec/sec): 0.0000 PA of first scan line (degrees) 0.000 Scan frame (CEL or S/C): S/C Length Offset (arc-sec): 1.4000 Width Offset (arc-sec): 0.0000 ------------------------------------------------------------------------------------------------------------------------------------ Data ID: 2 Exposure Logsheet lines: 16.52 FGS Scan: DWELL Dwell Only: dwell points/line: 6 Seconds per dwell: 3.00 Scan width (arc-secs): 0.7000 Scan length (arc-secs): 3.5000 Angle between sides (degrees) 90.00 Number of lines: 2 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): 1.7500 Width Offset (arc-sec): 0.3500 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4857c [ 7] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAK ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SEARCH-SIZE-X=3 SCAN-STEP-X=.35 SEARCH-SIZE-Y=3 SCAN-STEP-Y=.35 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 2.71 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QUASARS & AGN ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category GTO/FOS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 16.52; SPATIAL SCAN; SEQ 16.51-16.59 NO GAP; CYCLE 3 / 16.51-16.59; ONBOARD ACQ FOR 16.53; ONBOARD ACQ FOR 16.59; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G270H ------------------------------------------------------------------------------------------------------------------------------------ Target Names 1246-057 ------------------------------------------------------------------------------------------------------------------------------------