! $Id: 5206,v 4.1 1994/07/27 15:54:20 pepsa Exp $ coverpage: title_1: THE CRAB NEBULA sci_cat: INTERSTELLAR MEDIUM sci_subcat: SN & SNR proposal_for: GTO/WF2 pi_fname: JOHN pi_lname: TRAUGER pi_inst: 2370 pi_country: USA hours_pri: 10.31 ! end of coverpage abstract: line_1: The Crab Nebula represents a unique opportunity to investigate a range line_2: of questions and processes such as the chemical composition of SN line_3: ejecta, the evolution of young SNRs, power law photoionization, dust line_4: formation in energetic environments, and the interaction of thermal and line_5: relativistic plasmas. We will use the high spatial resolution of the line_6: HST to study the ionization structure of filaments in the Crab - an line_7: investigation which is fundamental to all of the above questions. ! ! end of abstract general_form_proposers: lname: TRAUGER fname: JOHN title: PI inst: 2370 country: USA esa: N ! lname: BURROWS fname: CHRIS inst: STSCI country: USA ! lname: CLARKE fname: JOHN inst: UNIV. OF MICHIGAN country: USA ! lname: CRISP fname: DAVID inst: JPL country: USA ! lname: HOESSEL fname: JOHN inst: UNIV. OF WISCONSIN country: USA ! lname: GALLAGHER fname: JAY inst: UNIV. OF WISCONSIN country: USA ! lname: GRIFFITHS fname: RICHARD inst: JOHNS HOPKINS UNIV country: USA ! lname: HESTER fname: JEFF inst: ARIZONA STATE UNIV. country: USA ! lname: HOLTZMAN fname: JOHN inst: LOWELL OBSERVATORY country: USA ! lname: MOULD fname: JEREMY inst: CALTECH country: USA ! lname: WESTPHAL fname: JAMES inst: CALTECH country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: Observations of the Crab Nebula will be obtained line_2: through a variety of narrow band filters which line_3: emission from species with a range of ionization and line_4: excitation states. Continuum observations will be line_5: obtained to allow continuum subtraction of the line line_6: images. ! question: 5 section: 1 line_1: Achieving the scientific aims of the proposal line_2: requires imaging of filaments with abundance / ionization / line_3: excitation properties which cover the range within the line_4: nebula. Due to the asymmetical shape of the FOV of the line_5: WFPC-2, this constrains the orientation. ! !end of general form text general_form_address: lname: TRAUGER fname: JOHN category: PI inst: 2370 addr_1: MS 179-225 addr_2: 4800 OAK GROVE DRIVE city: PASADENA state: CA zip: 91109 country: USA ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: CRAB-NEB-A descr_1: G, 506 pos_1: RA = 05H 34M 30.31S +/- 0.1", pos_2: DEC = 22D 01' 29" +/- 0.1" equinox: 2000 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.010 targname: CRAB-NEB-A config: WFPC2 opmode: IMAGE aperture: WFALL-FIX sp_element: F375N num_exp: 2 time_per_exp: 2000S priority: 1 param_1: CR-SPLIT=NO, param_2: ATD-GAIN=7 req_1: POS TARG 10,10; req_2: SAME POS FOR 1.02-1.08 AS 1.01; req_3: SAME ORIENT FOR 1.02-1.08 AS 1.01; req_5: ORIENT 120.5D +/- 8.5D / 1.01-1.08; req_6: PCS MODE F / 1.01-1.08; req_7: CYCLE 4 / 1.01-1.08; ! linenum: 1.020 targname: CRAB-NEB-A config: WFPC2 opmode: IMAGE aperture: WFALL-FIX sp_element: F469N num_exp: 2 time_per_exp: 2000S priority: 1 param_1: CR-SPLIT=NO, param_2: ATD-GAIN=7 ! linenum: 1.030 targname: CRAB-NEB-A config: WFPC2 opmode: IMAGE aperture: WFALL-FIX sp_element: F487N num_exp: 2 time_per_exp: 2000S priority: 1 param_1: CR-SPLIT=NO, param_2: ATD-GAIN=7 ! linenum: 1.040 targname: CRAB-NEB-A config: WFPC2 opmode: IMAGE aperture: WFALL-FIX sp_element: F502N num_exp: 2 time_per_exp: 2000S priority: 1 param_1: CR-SPLIT=NO, param_2: ATD-GAIN=7 ! linenum: 1.050 targname: CRAB-NEB-A config: WFPC2 opmode: IMAGE aperture: WFALL-FIX sp_element: F588N num_exp: 2 time_per_exp: 2000S priority: 1 param_1: CR-SPLIT=NO, param_2: ATD-GAIN=7 ! linenum: 1.060 targname: CRAB-NEB-A config: WFPC2 opmode: IMAGE aperture: WFALL-FIX sp_element: F631N num_exp: 2 time_per_exp: 2000S priority: 1 param_1: CR-SPLIT=NO, param_2: ATD-GAIN=7 ! linenum: 1.070 targname: CRAB-NEB-A config: WFPC2 opmode: IMAGE aperture: WFALL-FIX sp_element: F673N num_exp: 2 time_per_exp: 2000S priority: 1 param_1: CR-SPLIT=NO, param_2: ATD-GAIN=7 ! linenum: 1.080 targname: CRAB-NEB-A config: WFPC2 opmode: IMAGE aperture: WFALL-FIX sp_element: F547M num_exp: 1 time_per_exp: 2000S priority: 1 param_1: CR-SPLIT=0.5, param_2: ATD-GAIN=15 ! ! end of exposure logsheet ! No scan data records found