! File: 5070C.PROP ! Database: PEPDB ! Date: 23-FEB-1994:18:56:31 coverpage: title_1: OPTICAL AND ULTRAVIOLET OBSERVATIONS OF RADIO PULSARS - title_2: CYC2HIGH-CONT sci_cat: STELLAR ASTROPHYSICS proposal_for: GTO/HSP cont_id: 3253 pi_fname: ROBERT pi_mi: C. pi_lname: BLESS pi_inst: WISCONSIN, UNIVERSITY OF pi_country: USA pi_phone: 608-262-1715 keywords_1: PULSARS, NEUTRON STARS, SUPERNOVAE hours_pri: 18.65 num_pri: 7 ! end of coverpage abstract: line_1: In spite of extensive efforts only two definite line_2: (Crab and Vela) and one probable (in SNR 0540-693) line_3: radio pulsars have been detected at optical line_4: wavelengths. Only the Crab Pulsar has been observed line_5: in the ultraviolet. Most efforts at modeling the line_6: optical emission mechanism are constrained only by line_7: the Crab Pulsar observations. To provide better line_8: model constraints, visual and ultraviolet line_9: observations of the Crab, Vela, and LMC pulsars will line_10: be obtained. Likely candidates will also be line_11: observed to attempt detection of pulses from pulsars line_12: previously undetected in the optical (millisecond line_13: pulsars and two binary pulsars). Revision History: line_14: Prepared for future cycles submission--BJW 4/24/92; line_15: Cycle 3 to cycle 2; Filter revisions--BJW 8/27/92; line_16: Update coordinates for OFF-LMC--BJW 10/27/92; Minor line_17: change to exposure time--BJW 11/19/92; Change in line_18: detector and aperture--BJW 12/1/92; Update STScI line_19: version with changes made since 8/27/92--BJW line_20: 12/7/92; Removed EARLY ACQ--BJW 1/26/93; ! ! end of abstract general_form_proposers: lname: VAN CITTERS fname: G. mi: W. inst: NATIONAL SCIENCE FOUNDATION country: USA ! lname: BLESS fname: ROBERT mi: C. inst: WISCONSIN, UNIVERSITY OF country: USA ! lname: DOLAN fname: JOSEPH mi: F. inst: NASA, GODDARD SPACE FLIGHT CENTER country: USA ! lname: ELLIOT fname: JAMES mi: L. inst: MASSACHUSETTS INSTITUTE OF TECHNOLOGY country: USA ! lname: ROBINSON fname: EDWARD mi: L. inst: TEXAS, UNIVERSITY OF country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: CYCLE 0: Crab Pulsar - Observe through UV and V line_2: filter each orbit to use V filter as phase line_3: reference. Total time 20 minutes each UV filter and line_4: 60 minutes in V--total 3H 2M. CYCLE 2: Vela Pulsar line_5: - WFC image(10M) 2 months before to identify field. line_6: One hour in each filter (3 filters) in rotation. line_7: Repeat until 4 hours of integration per filter are line_8: obtained. 12H 11M total. Vela may be in CVZ--needs line_9: dark time. LMC Pulsar - Same as Vela. Needs dark line_10: time. Millisecond Pulsars - WFC image 2 months line_11: before to explore field. Integrate for 5-1/3 hours line_12: in split mode (filters 750W & 320N) for each of two line_13: pulsar fields. Other Candidates Needs dark time. 16 line_14: hours total. ! question: 4 section: 1 line_1: The Space Telescope, besides the obvious access to line_2: the UV, provides an opportunity to examine pulse line_3: shape, phase as a function of frequency, and line_4: polarization with lower sky background levels, line_5: better discrimination against nebular contamination line_6: and lack of scintillation noise. Significant line_7: improvement over ground-based data is expected. ! question: 6 section: 1 line_1: Relating Space Telescope observations of pulsars to line_2: previous ground-based data will, in some cases, line_3: require calibration of the Space Telescope clock to line_4: +/- 10 msec to enable phase comparisons. This can be line_5: done after the observations. ! question: 13 section: 1 line_1: To provide better model constraints, visual and line_2: ultraviolet observations of the Crab, Vela, and LMC line_3: pulsars will be obtained. Likely candidates will line_4: also be observed to attempt detection of pulses from line_5: pulsars previously undetected in the optical line_6: (millisecond pulsars and two binary pulsars). ! !end of general form text general_form_address: lname: BLESS fname: ROBERT mi: C. category: PI inst: UNIVERSITY OF WISCONSIN addr_1: WASHBURN OBSERVATORY addr_2: 475 N. CHARTER STREET city: MADISON state: WI zip: 53706 country: USA phone: 608-262-1715 telex: 265452-UOFWISC-MDS ! lname: VAN CITTERS fname: G. mi: W. category: CON inst: NATIONAL SCIENCE FOUNDATION addr_1: DIV. OF ASTRONOMICAL SCI. addr_2: 1800 G STREET, N.W. city: WASHINGTON state: DC zip: 20550 country: USA phone: 202-357-9793 telex: 982-438 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: LMC-PULSAR descr_1: PULSAR IN LMC pos_1: RA = 5H 40M 11.403S +/- 0.01S, pos_2: DEC = -69D 19' 54.256" +/- 0.01" equinox: J2000 acqpr_1: BKG comment_1: EXACT OFFSET FROM OFF-LMC comment_2: TO BE DETERMINED IN WFC EARLY comment_3: ACQUISITION. comment_4: POSREF = VANCITTERS fluxnum_1: 1 fluxval_1: V=21 ! targnum: 2 name_1: OFF-LMC descr_1: OFFSET TARGET FOR LMC-PULSAR pos_1: RA = 5H 40M 15.448S +/- 0.01", pos_2: DEC = -69D 19' 16.367" +/- 0.07" equinox: J2000 pm_or_par: N comment_1: GS 9163 462 comment_2: POSREF = GSC. fluxnum_1: 1 fluxval_1: V=12.3 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 0.300 sequence_1: DEFINE sequence_2: CTR2 targname: # config: HSP/UV2 opmode: ACQ num_exp: 1 time_per_exp: 1S fluxnum_1: 1 priority: # ! linenum: 14.100 targname: OFF-LMC config: HSP/POL opmode: ACQ num_exp: 1 time_per_exp: 24S fluxnum_1: 1 priority: 1 param_1: SIZE=15, req_1: CYCLE 2 / 14.1-15.8; req_2: PCS MODE F / 14.1-15.8; req_3: ONBOARD ACQ FOR 14.25; ! linenum: 14.250 targname: LMC-PULSAR config: HSP/POL opmode: SINGLE aperture: 6.0 sp_element: F160LP num_exp: 1 time_per_exp: 1H fluxnum_1: 1 priority: 1 param_1: SAMPLE-TIME=0.0003, param_2: DATA-FORMAT=BYTE, req_1: NON-INT; comment_1: OBSERVE FOR MAXIMUM TIME POSSIBLE comment_2: WITHIN ONE ORBIT. ! linenum: 15.000 sequence_1: USE sequence_2: CTR2 targname: OFF-LMC time_per_exp: X200 priority: 1 req_1: ONBOARD ACQ FOR 15.25-15.8; req_2: SEQ 15 - 15.8 NO GAP; ! linenum: 15.250 targname: LMC-PULSAR config: HSP/UV2 opmode: SINGLE aperture: 10.0 sp_element: F140LP num_exp: 1 time_per_exp: 1H fluxnum_1: 1 priority: 1 param_1: SAMPLE-TIME=0.0003, param_2: DATA-FORMAT=BYTE, req_1: NON-INT; comment_1: OBSERVE FOR MAXIMUM TIME POSSIBLE comment_2: WITHIN ONE ORBIT. ! linenum: 15.400 targname: LMC-PULSAR config: HSP/UV2 opmode: SINGLE aperture: 10.0 sp_element: F140LP num_exp: 1 time_per_exp: 1H fluxnum_1: 1 priority: 1 param_1: SAMPLE-TIME=0.0003, param_2: DATA-FORMAT=BYTE, req_1: NON-INT; comment_1: OBSERVE FOR MAXIMUM TIME POSSIBLE comment_2: WITHIN ONE ORBIT. ! linenum: 15.600 targname: LMC-PULSAR config: HSP/UV2 opmode: SINGLE aperture: 10.0 sp_element: F140LP num_exp: 1 time_per_exp: 1H fluxnum_1: 1 priority: 1 param_1: SAMPLE-TIME=0.0003, param_2: DATA-FORMAT=BYTE, req_1: NON-INT; comment_1: OBSERVE FOR MAXIMUM TIME POSSIBLE comment_2: WITHIN ONE ORBIT. ! linenum: 15.800 targname: LMC-PULSAR config: HSP/UV2 opmode: SINGLE aperture: 10.0 sp_element: F140LP num_exp: 1 time_per_exp: 1H fluxnum_1: 1 priority: 1 param_1: SAMPLE-TIME=0.0003, param_2: DATA-FORMAT=BYTE, req_1: NON-INT; comment_1: OBSERVE FOR MAXIMUM TIME POSSIBLE comment_2: WITHIN ONE ORBIT. ! ! end of exposure logsheet ! No scan data records found