! $Id: 22,v 4.1 1994/07/26 20:52:06 pepsa Exp $ coverpage: title_1: NEBULOSITY ASSOCIATED WITH THE NEARBY QSO MR 2251-178 sci_cat: QUASARS & AGN sci_subcat: QUASAR EMISSION proposal_for: GO pi_title: DR. pi_fname: JOE pi_lname: ASTRONOMER pi_inst: STSCI pi_country: USA pi_phone: (301) 338-4700 keywords_1: QSO - INTERSTELLAR MATTER - KINEMATICS hours_pri: 4.00 num_pri: 2 pi_position: PROFESSOR ! end of coverpage abstract: line_1: Long-slit spectroscopy of the nearby QSO MR2251-178 will line_2: allow us to study the dynamics of its nuclear narrow line line_3: region and the link between this region and the surrounding line_4: ionized nebulosity, to determine the gas excitation gradients line_5: and the total column density of ionized gas. line_7: In addition the imaging mode will give the morphology of the line_8: ionized gas within the narrow line region and the inner line_9: nebulosity and will allow comparison between LyAlpha haloes line_10: of low and high redshift QSO's. ! ! end of abstract general_form_proposers: lname: ASTRONOMER fname: JOE title: DR. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: imaging : one exposure of 3000 sec using a narrow filter line_2: centred on the Lyalpha redshifted emission line line_3: spectroscopy : three exposures, each of about 5000 sec line_4: - one along the major axis with a cut-order filter to only line_5: get the optical range (information on both the continuum and line_6: line emissions) line_7: - one along the minor axis without filter to observe the line_8: optical and the UV emission lines line_9: - one off-centred by about one (or one half) arcsec to obtain line_10: after spatial rebinning a higher S/N ratio spectrum for the line_11: ionized gas outside the BLR. This tangential spatial line_12: rebinning, along about 0.5 to 1 arcsec paralell to the minor line_13: axis, does not degrade substantially the emission line line_14: profiles and will give detailed emission line ratios line_15: (including weaker lines as [0III]Lambda 4363) and allow a line_16: search for a possible abdorption component due to the line_17: ionized of the nebulosity and outer envelope. ! question: 4 section: 1 line_1: Neither the narrow line region, nor the transition zone line_2: between the NLR and the nebulosity can be resolved from the line_3: ground. The kinematics, spatial distribution, density and line_4: ionization gradients of these inner ionized regions of the line_5: nearby QSO MR 2251-178 can only be studied with the ST using line_6: the long-slit spectroscopy mode of the FOC. ! question: 5 section: 1 line_1: Justification for realtime data or special scheduling line_2: goes here (none for this proposal). ! question: 6 section: 1 line_1: Obsrvation of diffuse emission (more crucially the search of line_2: stellar absorption lines) requires a dark sky. ! question: 7 section: 1 line_1: A description of your data reduction plans go here. ! question: 8 section: 1 line_1: Any additional comments go here. ! question: 9 section: 1 line_1: A description of any previous HST data goes here. ! question: 10 section: 1 line_1: Resources provided by your home institution goes here. ! !end of general form text general_form_address: lname: ASTRONOMER fname: JOE title: DR. category: PI inst: STSCI addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA phone: (301) 338-4700 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: MR2251-178 descr_1: E,314 pos_1: PLATE-ID=7TT2, pos_2: RA = 22H 51M 25.9S +/- 0.1S, pos_3: DEC = -17D 50' 56.7" +/- 1" equinox: 1950 pm_or_par: NO rv_or_z: Z=0.06398 acqpr_1: EXT plate_req: N plate_avail: N fluxnum_1: 1 fluxval_1: F-LINE(1216) = 4 +/- 2 E-15 fluxnum_3: 2 fluxval_3: F-LINE(5007) = 5 +/- 2 E-14 ! targnum: 2 name_1: MR2251-178W descr_1: E,314,991 pos_1: R = 1.0" , pos_2: PA = 270D , pos_3: FROM 1 equinox: 1950 pm_or_par: NO rv_or_z: Z=0.06398 acqpr_1: EXT plate_req: N plate_avail: N fluxnum_1: 1 fluxval_1: F-LINE(1216) = 4 +/- 2 E-15 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 5.000 targname: MR2251-178 config: FOC/48 opmode: ACQ aperture: 128X128-ASLIT sp_element: F140W num_exp: 1 time_per_exp: 120S s_to_n: 10 fluxnum_1: 1 priority: 1 req_1: ONBOARD ACQ FOR 6; req_2: GUID TOL 0.05"/5-9; req_3: CYCLE 1; req_4: ORIENT 350D +/- 10D; ! linenum: 6.000 targname: MR2251-178 config: FOC/48 opmode: SPEC aperture: 256X1024-SLIT sp_element: G450M wavelength: 3600-5300 num_exp: 1 time_per_exp: 2000S s_to_n: 20 fluxnum_1: 2 priority: 1 param_1: PIXEL=25X25 req_1: SAME ORIENT FOR 6 AS 5; req_2: CYCLE 1; DARK TIME; req_3: SAME POS FOR 6 AS 5; comment_1: ORIENT 350D +/- 10D IS EQUALLY GOOD. ! linenum: 7.000 targname: MR2251-178 config: FOC/48 opmode: ACQ aperture: 128X128-ASLIT sp_element: F140W num_exp: 1 time_per_exp: 120S s_to_n: 10 fluxnum_1: 1 priority: 1 req_1: INT ACQ FOR 8,9; req_2: CYCLE 1; req_3: ORIENT 80D +/- 10D; ! linenum: 8.000 targname: MR2251-178 config: FOC/48 opmode: SPEC aperture: 256X1024-SLIT sp_element: GRAT-PRISM num_exp: 1 time_per_exp: 2000S s_to_n: 20 fluxnum_1: 1 fluxnum_2: 2 priority: 1 req_1: DARK TIME; req_2: SAME POS FOR 8-9 AS 7; req_3: SAME ORIENT FOR 8-9 AS 7; req_4: CYCLE 1; comment_1: ORIENT 260D +/- 10D IS EQUALLY GOOD ! linenum: 9.000 targname: MR2251-178W config: FOC/48 opmode: SPEC aperture: 256X1024-SLIT sp_element: GRAT-PRISM num_exp: 1 time_per_exp: 2000S s_to_n: 5 fluxnum_1: 1 priority: 1 req_1: DARK TIME; req_2: CYCLE 1 ! ! end of exposure logsheet ! No scan data records found