6799( 5) - 11/20/96 11:04 - [ 0] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6799 Version: 5 Check-in Date: 20-Nov-1996 10:51:34 1.Proposal Title: The BAL Region Covering Factor in a Sample of IRAS-Selected QSOs ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle QSO ABSORPTION LINES GO 6 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: DAVID A. TURNSHEK UNIVERSITY OF PITTSBURGH CoI: Eric Monier Department of Physics & Astronomy, Y University of Pittsburgh ------------------------------------------------------------------------------------ 6. Abstract -0.15 truein During an HST-FOS-UV Cycle 4 investigation we studied a unique sample of low redshift QSOs with weak narrow- line OIII emission in order to check for the presence of broad absorption lines (BALs) due to CIV. For various reasons we believed that such a sample might exhibit a high incidence of BALs. Indeed we found that 6 of the 18 objects in the sample (33\%) exhibited BALs, which is significantly higher than the fraction of ~ 10\% found in studies of large samples of radio quiet QSOs. This high incidence of BALs found in weak-OIII objects suggests that large BAL region covering factor models might be viable, provided there is a way to destroy resonance line scattered radiation which is often taken to be an observational constraint requiring BAL region covering factors to be < 0.2. Since 4 of the 6 the weak-OIII BAL QSOs in the sample were IRAS-selected, this is a serious possibility due to the suspected presence of dust. It may be that the presence of BALs has less to do with the weakness of OIII emission, but is more the result of being IRAS- selected. Therefore, we propose to make a study of 17 IRAS-selected objects in order to refine our understanding of criteria that can predict the presence of BALs in spectra. The nature of 7 of the objects is already known (4 have BALs) and so we propose HST-FOS-UV observations of an additional 10 objects. This work has relevance to investigations of QSO geometries, intrinsic QSO properties, and possible evolutionary phenomena in QSOs. ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: Email: , ------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 1] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 IR0345+0055 GALAXY,QSO RA=3H 47M 40.2S +/- .07S,DEC=1D 2000 Z = V = 16.0 5' 14.25" +/- 0.5",PLATE-ID=04YL 0.031 2 PKS0420-01 GALAXY,QSO RA=4H 23M 15.76S +/- 0.07S,DEC=- 2000 Z = V = 17.0 1D 20' 34.06" +/- 0.5",PLATE- 0.915 B-V = 0.5 ID=02C9 3 IR0450-2958 GALAXY,QSO RA=4H 52M 30.04S +/- 0.07S,DEC=- 2000 Z = V = 16.0 29D 53' 35.3" +/- 0.5",PLATE- 0.286 ID=04WB 4 MARK231 GALAXY,QSO RA=12H 56M 14.13S +/- 2000 Z = V = 13.84 0.07S,DEC=56D 52' 25.00" +/- 0.041 B-V = 0.84 0.5",PLATE-ID=01R1 5 IR1321+0552 GALAXY,QSO RA=13H 24M 19.87S +/- 2000 Z = V = 19.0 0.07S,DEC=05D 37' 4.64" +/- 0.190 0.5",PLATE-ID=01UR 6 OQ208 GALAXY,QSO RA=14H 7M 0.40S +/- 2000 Z = V = 15.35 0.07S,DEC=28D 27' 14.63" +/- 0.077 B-V = 0.78 0.5",PLATE-ID=019J 7 IR2121-1757 GALAXY,QSO RA=21H 24M 41.66S +/- 0.07S,DEC= 2000 Z = V = 16.5 -17D 44' 45.9" +/- 0.5",PLATE- 0.113 ID=04OA 6799( 5) - 11/20/96 11:04 - [ 2] 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 ------------------------------------------------------------------------------------------------------------------------------------ 11 IR0345+0055 FOS/BL ACQ/BIN 4.3 MIRROR 1 38 S ONBOARD ACQ FOR 12 ARY ------------------------------------------------------------------------------------------------------------------------------------ 12 IR0345+0055 FOS/BL ACCUM 1.0 G160L 1 3900 S ------------------------------------------------------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 3] 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 ------------------------------------------------------------------------------------------------------------------------------------ 21 PKS0420-01 FOS/RD ACQ/BIN 4.3 MIRROR 1 14 S ONBOARD ACQ FOR 22 ARY ------------------------------------------------------------------------------------------------------------------------------------ 22 PKS0420-01 FOS/RD ACCUM 1.0 G270H 1 1590 S ------------------------------------------------------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 4] 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 ------------------------------------------------------------------------------------------------------------------------------------ 31 IR0450-2958 FOS/RD ACQ/BIN 4.3 MIRROR 1 6 S ONBOARD ACQ FOR 32 ARY ------------------------------------------------------------------------------------------------------------------------------------ 32 IR0450-2958 FOS/RD ACCUM 1.0 G190H 1 1610 S ------------------------------------------------------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 5] 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 ------------------------------------------------------------------------------------------------------------------------------------ 41 MARK231 FOS/BL ACQ/PEA 4.3 G270H SCAN-STEP-Y=1.23,SEARCH-SIZE-Y=3, 1 0.5 S ONBOARD ACQ FOR 42 K SEARCH-SIZE-X=1 Comments: STAGE 1 OF 3-STAGE PEAKUP ------------------------------------------------------------------------------------------------------------------------------------ 42 MARK231 FOS/BL ACQ/PEA 1.0 G270H SCAN-STEP-Y=0.61,SCAN-STEP-X=0.61 1 0.55 S ONBOARD ACQ FOR 43 K ,SEARCH-SIZE-Y=2,SEARCH-SIZE-X=6 Comments: STAGE 2 OF 3-STAGE PEAKUP ------------------------------------------------------------------------------------------------------------------------------------ 43 MARK231 FOS/BL ACQ/PEA 0.5 G270H SCAN-STEP-Y=0.3,SCAN-STEP-X=0.3, 1 0.6 S ONBOARD ACQ FOR 44 K SEARCH-SIZE-Y=3,SEARCH-SIZE-X=3 Comments: STAGE 3 OF 3-STAGE PEAKUP ------------------------------------------------------------------------------------------------------------------------------------ 44 MARK231 FOS/BL ACCUM 1.0 G160L 1 730 S ------------------------------------------------------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 6] Visit: 05 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 ------------------------------------------------------------------------------------------------------------------------------------ 51 IR1321+0552 FOS/RD ACQ/BIN 4.3 MIRROR 1 88 S ONBOARD ACQ FOR 52 ARY ------------------------------------------------------------------------------------------------------------------------------------ 52 IR1321+0552 FOS/RD ACCUM 1.0 G190H 1 3910 S ------------------------------------------------------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 7] Visit: 06 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 ------------------------------------------------------------------------------------------------------------------------------------ 61 OQ208 FOS/BL ACQ/BIN 4.3 MIRROR 1 21 S ONBOARD ACQ FOR 62 ARY ------------------------------------------------------------------------------------------------------------------------------------ 62 OQ208 FOS/BL ACCUM 1.0 G160L 1 1520 S ------------------------------------------------------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 8] Visit: 07 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 ------------------------------------------------------------------------------------------------------------------------------------ 71 IR2121-1757 FOS/BL ACQ/BIN 4.3 MIRROR 1 60 S ONBOARD ACQ FOR 72 ARY ------------------------------------------------------------------------------------------------------------------------------------ 72 IR2121-1757 FOS/BL ACCUM 1.0 G160L 1 3870 S ------------------------------------------------------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 9] Visit: 17 Visit Requirements: On Hold Comments: Additional Comments: This is a repeat for failed visit 7. This visit will be placed into a contingency pool and executed if the SM2 lauch is delayed. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 71 IR2121-1757 FOS/BL ACQ/BIN 4.3 MIRROR 1 60 S ONBOARD ACQ FOR 72 ARY ------------------------------------------------------------------------------------------------------------------------------------ 72 IR2121-1757 FOS/BL ACCUM 1.0 G160L 1 3870 S ------------------------------------------------------------------------------------------------------------------------------------ 6799( 5) - 11/20/96 11:04 - [ 10] Summary Form for Proposal 6799 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/BL FOS/RD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACCUM ACQ/PEAK ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCAN-STEP-Y=1.23 SEARCH-SIZE-Y=3 SEARCH-SIZE-X=1 SEARCH-SIZE-X=6 SEARCH-SIZE-X=3 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QSO ABSORPTION LINES ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 12 ONBOARD ACQ FOR 22 ONBOARD ACQ FOR 32 ONBOARD ACQ FOR 42 ONBOARD ACQ FOR 43 ONBOARD ACQ FOR 44 ONBOARD ACQ FOR 52 ONBOARD ACQ FOR 62 ONBOARD ACQ FOR 72 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G160L G270H G190H ------------------------------------------------------------------------------------------------------------------------------------ Target Names IR0345+0055 PKS0420-01 IR0450-2958 MARK231 IR1321+0552 OQ208 IR2121-1757 ------------------------------------------------------------------------------------------------------------------------------------