! File: 1025C.PROP ! Database: PEPDB ! Date: 15-FEB-1994:22:50:12 coverpage: title_1: EVOLUTION OF LYMAN-ALPHA AND CIV ABSORPTON SYSTEMS sci_cat: QUASARS & AGN proposal_for: GTO/OS pi_title: DR. pi_fname: JOHN pi_mi: N. pi_lname: BAHCALL pi_inst: INSTITUTE FOR ADVANCED STUDY pi_country: USA pi_phone: (609) 734-8054 keywords_1: QUASAR, SPECTROSCOPY, ABSORPTION LINES, EMISSION keywords_2: LINES, EVOLUTION hours_pri: 7.05 num_pri: 21 wf_pc: X fos: X pi_position: PROFESSOR off_fname: ALLEN off_lname: ROWE off_title: ASSOC DIR ADM/FIN off_addr_1: INSTITUTE FOR ADVANCED STUDY off_addr_2: OLDEN LANE off_city: PRINCETON off_state: NJ off_zip: 08540 off_country: USA off_phone: (609) 734-8205 off_telex: 837680 ! end of coverpage abstract: line_1: The evolution of Lyman-alpha and CIV absorption line systems line_2: in quasar spectra will be investigated using 21 optically line_3: bright quasars with a wide range of redshifts; the line_4: wavelength at which the Lyman cutoff appears will also be line_5: determined. All of the prominent emission and absorption line_6: lines will be measured. ST observations are required because line_7: the spectral features of interest are in the far ultraviolet line_8: and are inaccessible from the ground. ! ! end of abstract general_form_proposers: lname: BAHCALL fname: JOHN mi: N. inst: INSTITUTE FOR ADVANCED STUDY country: USA ! lname: GREEN fname: RICHARD inst: NOAO, KITT PEAK NATIONAL OBSERVATORY country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: Twenty-one quasars will be studied spectroscopically with line_2: the FOS and the gratings G130H, G190H, G270H, G160L, and in line_3: a few cases for comparison with ground-based observations, line_4: G400H. Exposures are taken with a given grating only if the line_5: data contributes to the statistical program of analyzing line_6: absorption systems. Exposures 3, 22-24, and 34 will be used line_7: to calibrate the procedure relative to ground based line_8: observations of absorption lines. Exposures 3 and 22 should line_9: be scheduled within one week of each other. Parellel line_10: observations will be made with the WF/PC for the longer line_11: exposures to help determine the density of background line_12: objects for the proposal: "Luminosity Functions and Tidal line_13: Radii of Globular Clusters in Virgo," [J. Bahcall, P.I.]. line_14: Exposures 16-21 are parallel observations. line_15: Cycle 1 (SV: 1-6 months)=Exposures 3,5,8,10,12,22,24 line_16: Cycle 2 (7-18 months)=Exposures 1,4,7,11,13,15,23,25-35 line_17: Cycle 3+4 (19-30 months)=Exposures 2,6,9,14,36-50 line_18: Exposures 3 and 22 should be taken within a few days of line_19: each other. Exposures 16-21 are parallel exposures. line_20: Desirable but not critical. ! question: 4 section: 1 line_1: ST observations are required to reach the far ultraviolet line_2: wavelengths at which the relevant absorption and emission line_3: lines occur. UM 18 (target 12) has been studied extensively line_4: from the ground (Young et al. Ap. J. 252, 10, 1982), as have line_5: S4 1435+63 and UM 402, and will be used to help calibrate line_6: the ST reduction and analysis procedures relative to line_7: standard ground based observations. ! question: 5 section: 1 line_1: Exposures 3 and 22 should be scheduled within one week of line_2: each other. We want to compare the spectra obtained with line_3: the two gratings with simultaneous ground-based observations line_4: and detections of absorption lines. This comparison would be line_5: complicated if the continuum emission of the quasar varied line_6: during the period between exposure 3 and exposure 22. ! question: 6 section: 1 line_1: Parallel observations should be as long as possible line_2: (uninterrupted if scheduling permits) and in dark time (if line_3: scheduling permits). ! question: 7 section: 1 line_1: Primary data reduction and analysis will be performed at IAS line_2: for the absorption line features and at KPNO for the line_3: emission line features. ! question: 8 section: 1 line_1: Measurements in other wavelength regions will be acquired line_2: prior to ST launch in order to make the ST observations line_3: more meaningful. Many of the program objects have already line_4: been studied extensively by R. Green and his collaborators line_5: in connection with surveys taken in other wavelength regions. line_6: R. Green will obtain spectra in the visible at KPNO that are line_7: as nearly simultaneous with ST observations as scheduling line_8: permits and will combine the ST results and the new KPNO line_9: data with the original PG survey material. One arc second line_10: positions are being measured by R. Green for all of the line_11: program objects for all cases in which they are not already line_12: known. Targets 2, 11, 12, and 15 (exposures 3, 22-24, 34-35) line_13: will be studied spectroscopically from the ground prior to line_14: the launch of ST in order that we can compare our line_15: sensitivity and reduction procedures to standard line_16: measurements from the ground. For this reason, we have line_17: requested observations of Targets 2, 11, and 12 in a line_18: wavelength region that is also accessible from the ground. ! question: 10 section: 1 line_1: Full computing support will be supplied by IAS. Research line_2: associates will be available. Observing assistance and line_3: computing support will be provided by KPNO for continuum line_4: and emission-line analyses. ! question: 13 section: 1 line_1: The evolution of Lyman-alpha and CIV absorption line systems line_2: in quasar spectra will be investigated using 21 optically line_3: bright quasars with a wide range of redshifts; the line_4: wavelength at which the Lyman cutoff appears will also be line_5: determined. All of the prominent emission and absorption line_6: lines will be measured. ! !end of general form text general_form_address: lname: BAHCALL fname: JOHN mi: N. title: DR. category: PI inst: INSTITUTE FOR ADVANCED STUDY addr_1: OLDEN LANE city: PRINCETON state: NJ zip: 08540 country: USA phone: (609) 734-8054 telex: 837680 ! ! end of general_form_address records fixed_targets: targnum: 4 name_1: PKS0405-12 descr_1: QUASAR pos_1: RA = 04H 07M 48.4S+/-0.1S, pos_2: DEC = -12D 11' 36"+/-1" equinox: 2000 pm_or_par: N rv_or_z: Z=0.574 fluxnum_1: 1 fluxval_1: V = 14.6 +/- 0.2 ! targnum: 22 name_1: E1821+643 descr_1: QUASAR pos_1: RA = 18H 21M 41.7S+/-0.1S, pos_2: DEC = +64D 19' 01"+/-1" equinox: 1950 pm_or_par: NO rv_or_z: Z=0.297 fluxnum_1: 1 fluxval_1: V = 14.2 +/- 0.2 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: PKS0405-12 config: FOS/BL opmode: ACCUM aperture: 0.25X2.0 sp_element: G130H wavelength: 1150-1608 num_exp: 1 time_per_exp: 7000S s_to_n: 15 fluxnum_1: 1 priority: 1 req_1: CYCLE 0 / 1-8.1 ; req_2: GROUP 1,2,3 WITHIN 10D; req_3: SEQ 1-1.1 NO GAP; ! linenum: 1.100 targname: WAVE config: FOS/BL opmode: ACCUM aperture: 0.25X2.0 sp_element: G130H wavelength: 1150-1608 num_exp: 1 time_per_exp: DEF priority: 1 comment_1: THIS EXPOSURE SHOULD BE PLACED comment_2: IN THE SAME ORBIT AS A SCIENCE comment_3: EXPOSURE USING THE SAME GRATING. ! linenum: 2.000 targname: PKS0405-12 config: FOS/BL opmode: ACCUM aperture: 0.25X2.0 sp_element: G190H wavelength: 1577-2311 num_exp: 1 time_per_exp: 3600S s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: SEQ 2-2.1 NO GAP; ! linenum: 2.100 targname: WAVE config: FOS/BL opmode: ACCUM aperture: 0.25X2.0 sp_element: G190H wavelength: 1577-2311 num_exp: 1 time_per_exp: DEF priority: 1 comment_1: THIS EXPOSURE SHOULD BE PLACED comment_2: IN THE SAME ORBIT AS A SCIENCE comment_3: EXPOSURE USING THE SAME GRATING. ! linenum: 3.000 targname: PKS0405-12 config: FOS/RD opmode: RAPID aperture: 0.25X2.0 sp_element: G270H wavelength: 2225-3300 num_exp: 1 time_per_exp: 2400S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: READ-TIME=40 req_1: SEQ 3-3.1 NO GAP; ! linenum: 3.100 targname: WAVE config: FOS/RD opmode: ACCUM aperture: 0.25X2.0 sp_element: G270H wavelength: 2225-3300 num_exp: 1 time_per_exp: DEF priority: 1 comment_1: THIS EXPOSURE SHOULD BE PLACED comment_2: IN THE SAME ORBIT AS A SCIENCE comment_3: EXPOSURE USING THE SAME GRATING. ! linenum: 4.000 targname: PKS0405-12 config: FOS/BL opmode: ACQ/BINARY aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 7S priority: 1 param_1: BRIGHT=330000.0 param_2: FAINT=660.0 req_1: ONBOARD ACQ FOR 4.1 ! linenum: 4.100 targname: PKS0405-12 config: FOS/BL opmode: ACQ/PEAK aperture: 0.25X2.0 sp_element: MIRROR num_exp: 1 time_per_exp: 4.6S priority: 1 param_1: TYPE=UP req_1: ONBOARD ACQ FOR 1,2 ; req_2: SPATIAL SCAN ! linenum: 5.000 targname: PKS0405-12 config: FOS/RD opmode: ACQ/BINARY aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 3S priority: 1 param_1: BRIGHT=330000.0 param_2: FAINT=660.0 req_1: ONBOARD ACQ FOR 5.1 ! linenum: 5.100 targname: PKS0405-12 config: FOS/RD opmode: ACQ/PEAK aperture: 0.25X2.0 sp_element: MIRROR num_exp: 1 time_per_exp: 2.3S priority: 1 param_1: TYPE=UP req_1: ONBOARD ACQ FOR 3 ; req_2: SPATIAL SCAN ! linenum: 6.000 targname: E1821+643 config: FOS/RD opmode: RAPID aperture: 0.25X2.0 sp_element: G190H wavelength: 1580-2311 num_exp: 1 time_per_exp: 1720S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: READ-TIME=40 req_1: SEQ 6-6.1 NO GAP; ! linenum: 6.100 targname: WAVE config: FOS/RD opmode: ACCUM aperture: 0.25X2.0 sp_element: G190H wavelength: 1580-2311 num_exp: 1 time_per_exp: DEF priority: 1 comment_1: THIS EXPOSURE SHOULD BE PLACED comment_2: IN THE SAME ORBIT AS A SCIENCE comment_3: EXPOSURE USING THE SAME GRATING. ! linenum: 7.000 targname: E1821+643 config: FOS/RD opmode: RAPID aperture: 0.25X2.0 sp_element: G270H wavelength: 2225-3300 num_exp: 1 time_per_exp: 2400S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: READ-TIME=40 req_1: SEQ 7-7.1 NO GAP; ! linenum: 7.100 targname: WAVE config: FOS/RD opmode: ACCUM aperture: 0.25X2.0 sp_element: G270H wavelength: 2225-3300 num_exp: 1 time_per_exp: DEF priority: 1 comment_1: THIS EXPOSURE SHOULD BE PLACED comment_2: IN THE SAME ORBIT AS A SCIENCE comment_3: EXPOSURE USING THE SAME GRATING. ! linenum: 8.000 targname: E1821+643 config: FOS/RD opmode: ACQ/BINARY aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 2.3S priority: 1 param_1: BRIGHT=330000.0 param_2: FAINT=660.0 req_1: ONBOARD ACQ FOR 8.1 ! linenum: 8.100 targname: E1821+643 config: FOS/RD opmode: ACQ/PEAK aperture: 0.25X2.0 sp_element: MIRROR num_exp: 1 time_per_exp: 2.3S priority: 1 param_1: TYPE=UP req_1: ONBOARD ACQ FOR 6,7 ; req_2: SPATIAL SCAN ! ! end of exposure logsheet scan_data: line_list: 4.1,5.1,8.1 fgs_scan: cont_dwell: D dwell_pnts: 9 dwell_secs: 0.00 scan_width: 0.0000 scan_length: 0.4000 sides_angle: 0.0000 number_lines: 1 scan_rate: 0.0000 first_line_pa: 90.0000 scan_frame: S/C len_offset: 0.2000 wid_offset: 0.0000 ! ! end of scan data