! File: 1191C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:05:21:43 coverpage: title_1: PHYSICAL CONDITIONS IN LOW Z ABSORPTION LINE SYSTEMS IN QSOS title_2: AUGMENTATION: CYCLE 2 OBSERVATIONS sci_cat: QUASARS & AGN sci_subcat: QUASAR ABSORPTION proposal_for: AUG/HRS longterm: 2 cont_id: 1191 pi_title: DR. pi_fname: EDWARD pi_lname: BEAVER pi_inst: UC, SAN DIEGO pi_country: USA pi_phone: (619) 534-1878 keywords_1: QUASAR, SPECTROSCOPY, ABSORPTION LINES hours_pri: 3.17 num_pri: 1 fos: Y pi_position: RESEARCH PHYSICIST ! end of coverpage abstract: line_1: In PKS 2135-147, we will line_2: measure absorption of Ly-alpha and C IV at the emission-line line_3: redhift. We will study the properties of z(a)=z(e) line_4: absorption lines in this, the lowest redshift QSO with a line_5: z(a)=z(e) absorption system. Wavelengths and line strengths, line_6: combined with future imaging, will elucidate the properties line_7: of these systems. ! ! end of abstract general_form_proposers: lname: COHEN fname: ROSS mi: D. inst: UC, SAN DIEGO country: USA ! lname: BEAVER fname: EDWARD title: PI mi: A. inst: UC, SAN DIEGO country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: Following a binary search target acq. with the blue tube, observations with line_2: G130H will yield S/N>20 per diode at the peak of Lyman alpha. Following this, line_3: a switch to the red detector (without a new target acq.) will yield the same line_4: S/N at the peak of C IV. The exposures will be 5100 and 2300s respectively. line_5: The 1.0" aperture will be used for the best measurements of resolved emission line_6: and absorption lines. ! question: 4 section: 1 line_1: The IUE observations have detected the lines we will measure here. The S/N and line_2: resolution of HST observations are required to measure profiles and wavelengths line_3: accurate enough to identify the mechanism causing the absorption. Optical line_4: measurements have been made of these lines in high-redshift objects, but because line_5: of the high redshift, detailed observations of the environment of the object are line_6: not possible. ! question: 7 section: 1 line_1: Data reduction and analysis will be performed using UCSD facilities, using line_2: existing software for absorption line measurements and emission line line_3: comparisons. ! question: 8 section: 1 line_1: We will arrange optical photometry and spectroscopy as close in time as possible line_2: to the HST observations. ! question: 9 section: 1 line_1: PI has received data from a number of line_2: GTO programs, SAT, and ERO programs. Related line_3: programs which have had observations are as line_4: follows: line_5: 1026 - ``UV Spectra of Low-Redshift-QSOs'': related, line_6: 1027 - ``UV Spectra of QSOs with z> 3.1'': not related, line_7: 1190 - ``FUV Emission LIne Profiles of W Serpentis line_8: Binaries'': not related line_11: Observations of UM 675 have shown line_12: that any He I Gunn--Peterson effect is small, that line_13: He I absorption lines are not strong, that line_14: predictions of the ``Lyman valley'' may be line_15: correct, and that low redshift Ly-alpha is more line_16: prevalent than expected. Observations of low line_17: redshift QSOs (including 3C 273) have shown even line_18: more clearly that Ly-alpha absorption occurs in line_19: greater numbers than expected, as well as showing line_20: emission--line profile differences more clearly line_21: than from earlier data. Unexpectedly, Ly-alpha line_22: is {\it narrower} than H-alpha. line_23: ``Far--Ultraviolet Spectroscopy of the Quasar UM ! question: 9 section: 2 line_1: 675 with the Faint Object Spectrograph on the line_2: Hubble Space Telescope'', E.A.Beaver, line_3: E.M.Burbidge, R.D.Cohen, V.T.Junkkarinen, line_4: R.W.Lyons, E.I.Rosenblatt, G.F.Hartig, B.Margon, line_5: and A.F.Davidsen, {\it Ap.J.(Lett.)}, {\bf 377}, line_6: L1, 1991. line_7: ``First Results from the GHRS: UV Spectra of a line_8: Starburst Knot in NGCC 1068'', Hutchings, J.B., line_9: Bruhweiler, G.C., Boggess, A., Heap, S.R., Ebbets, line_10: D.C., Beaver, E., Rosenblatt, E., Truonmg, K.Q., line_11: Perez, M., and Westmacott, R., 1991, APJ line_12: (Letters), 377, 1991. ! question: 10 section: 1 line_1: UCSD will supply all computing facilities. These were originally purchased line_2: by NASA for the GHRS IDT. ! !end of general form text general_form_address: lname: COHEN fname: ROSS category: CON inst: UNIV. OF CALIF., SAN DIEGO addr_1: CASS DEPT., C-011 city: LA JOLLA state: CA zip: 92093 country: USA phone: (619) 534-2664 telex: 534-6316 (FAX) ! lname: BEAVER fname: EDWARD category: PI inst: UNIVERSITY OF CALIFORNIA, SAN DIEGO addr_1: CASS DEPT., C-011 city: LA JOLLA state: CA zip: 92093 country: USA phone: (619) 534-1878 telex: 534-6316 (FAX) ! ! end of general_form_address records fixed_targets: targnum: 3 name_1: PKS2135-147 descr_1: E,314,923, descr_2: H,515,519,520 pos_1: RA = 21H 37M 45.185S +/-5.0", pos_2: DEC = -14D 32' 55.81" +/-5.0", pos_3: PLATE-ID = OOW0 equinox: J2000 pm_or_par: NO rv_or_z: Z=0.20 fluxnum_1: 1 fluxval_1: V = 15.9 +/- 1.0 fluxnum_2: 2 fluxval_2: F(1450) = 2.0 +/- 0.5 E-14 fluxnum_3: 3 fluxval_3: F(1850) = 1.0 +/- 0.25 E-14 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 22.000 targname: PKS2135-147 config: FOS/BL opmode: ACQ/BINARY aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 16.1S fluxnum_1: 1 priority: 1 param_1: BRIGHT = 700000 req_1: ONBOARD ACQ FOR 22.4-22.45; req_2: GROUP 22.0-22.45 NO GAP; req_3: CYCLE 2 / 22.0-22.45 comment_1: RED SIDE ACQ/BIN EXP TIME comment_2: 7.4S AS ALTERNATIVE ! linenum: 22.400 targname: PKS2135-147 config: FOS/BL opmode: RAPID aperture: 1.0 sp_element: G130H wavelength: 1300 num_exp: 1 time_per_exp: 5100S s_to_n: 20 fluxnum_1: 2 priority: 1 param_1: READ-TIME=40 ! linenum: 22.450 targname: PKS2135-147 config: FOS/RD opmode: RAPID aperture: 1.0 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 2300S s_to_n: 20 fluxnum_1: 3 priority: 2 param_1: READ-TIME=40 ! ! end of exposure logsheet ! No scan data records found