! File: 1102C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:01:48:40 coverpage: title_1: ULTRAVIOLET LIGHT AND POLARIZATION VARIATIONS IN BETA CEPHEI STARS sci_cat: STELLAR ASTROPHYSICS proposal_for: GTO/HSP pi_fname: ROBERT pi_mi: C. pi_lname: BLESS pi_inst: WISCONSIN, UNIVERSITY OF pi_country: USA pi_phone: 608-262-1715 keywords_1: BETA CEPHEI STARS, STELLAR PULSATION hours_pri: 11.00 num_pri: 1 ! end of coverpage abstract: line_1: The variability of certain B stars such as Beta Cephei has been known for many line_2: years. No accepted mechanism for the excitation of this variation has been line_3: found, and uncertainty exists as to whether the pulsation modes are radial or line_4: nonradial. Color and polarization data in the UV will be obtained in an line_5: attempt to identify pulsation modes and phases of temperature and other line_6: variation for a selection of Beta Cephei stars. Better constraints on stellar line_7: pulsation models and the Beta Cephei phenomenon are the overall goal. line_8: Revision History: Received on RPS 9/1/89; Added to SCCS 9/5/89 line_9: Updated to V2 prop instr; RPSS V7.2 remote & local; Small syntactical line_10: Changes; Added coordinate uncertainties - SALM 9/13/89; Reduce repeats - line_11: SALM 3/5/90; Added ACQ to REPEATs; broke up DEFINE sequence - SALM 6/28/90; line_12: Added datafmt ANALOG to ACQ - SALM 7/12/90; Addition of exposure line_13: time for POL observations--BJW 8/19/90; ! ! end of abstract general_form_proposers: lname: ROBINSON fname: EDWARD mi: L. inst: TEXAS, UNIVERSITY OF country: USA ! lname: BLESS fname: ROBERT mi: C. inst: WISCONSIN, UNIVERSITY OF country: USA ! lname: VAN CITTERS fname: G. mi: W. inst: NATIONAL SCIENCE FOUNDATION 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 ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: Polarization measurements at 2160 A and 3270 A and intensity measurements at line_2: 2400 A 5510 A will be obtained over the period of 2 Beta Cephei stars. line_4: All exposures during Cycle 1. ! question: 4 section: 1 line_1: Both light and polarization amplitude will be larger in the UV for these hot line_2: stars. ST and the HSP will provide luminosity, polarization, and temperature line_3: variations far better than would ground-based observations. Typical visual line_4: amplitudes are 0.03 mag. UV amplitudes are a factor of 2 or 3 larger. ! question: 13 section: 1 line_1: Color and polarization data in the UV will be obtained in an attempt to line_2: identify pulsation modes and phases of temperature and other variations for a line_3: selection of Beta Cephei stars. Better constraints on stellar pulsation models line_4: and the Beta Cephei phenomenon are the overall goal. ! !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: 892-438 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: HD199140 name_2: BW-VUL descr_1: BETA CEPHEI STAR descr_2: P = 4.8H pos_1: RA = 20H 50M 8S +/- 0.5", pos_2: DEC = +28D 8' +/- 0.5" equinox: 1900 fluxnum_1: 1 fluxval_1: V = 6.52 ! targnum: 2 name_1: HD205021 name_2: BETA-CEP descr_1: BETA CEPHEI STAR descr_2: P = 4.6H pos_1: RA = 21H 28M 28.6S +/- 0.5", pos_2: DEC = +70D 29' 49" +/- 0.5" equinox: 1985.5 fluxnum_1: 1 fluxval_1: V = 3.19 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: POL targname: # config: HSP/POL opmode: SINGLE aperture: POL0 sp_element: F216M num_exp: 1 time_per_exp: 1M s_to_n: # fluxnum_1: 1 priority: # param_1: SAMPLE-TIME=0.1, req_1: CYCLE 1 / 1.0-11.0; ! linenum: 2.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL90 sp_element: F216M num_exp: ^ time_per_exp: ^ s_to_n: # fluxnum_1: ^ priority: # param_1: ^ ! linenum: 3.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL45 sp_element: F216M num_exp: ^ time_per_exp: ^ s_to_n: # fluxnum_1: ^ priority: # param_1: ^ ! linenum: 4.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL135 sp_element: F216M num_exp: ^ time_per_exp: ^ s_to_n: # fluxnum_1: ^ priority: # param_1: ^ ! linenum: 5.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL0 sp_element: F327M num_exp: ^ time_per_exp: ^ s_to_n: # fluxnum_1: ^ priority: # param_1: ^ ! linenum: 6.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL90 sp_element: F327M num_exp: ^ time_per_exp: ^ s_to_n: # fluxnum_1: ^ priority: # param_1: ^ ! linenum: 7.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL45 sp_element: F327M num_exp: ^ time_per_exp: ^ s_to_n: # fluxnum_1: ^ priority: # param_1: ^ ! linenum: 8.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL135 sp_element: F327M num_exp: ^ time_per_exp: ^ s_to_n: # fluxnum_1: ^ priority: # param_1: ^ ! linenum: 9.000 sequence_1: DEFINE sequence_2: VIS targname: # config: HSP/VIS opmode: SINGLE aperture: 1.0 sp_element: F551W num_exp: ^ time_per_exp: ^ s_to_n: # fluxnum_1: ^ priority: # param_1: ^ ! linenum: 9.900 targname: HD199140 config: HSP/POL opmode: ACQ num_exp: 1 time_per_exp: 4S priority: 1 param_1: DATA-FORMAT=ANALOG, req_1: ONBOARD ACQ FOR 10; req_2: REPEAT 9.9-10.5 EVERY 20M req_3: +/- 10M FOR 8 MORE TIMES; req_4: GUID TOL 0.020" / 9.9-10; ! linenum: 10.000 sequence_1: USE sequence_2: POL targname: HD199140 time_per_exp: X3 s_to_n: 1000 s_to_n_time: 1S priority: 2 ! linenum: 10.100 targname: HD199140 config: HSP/VIS opmode: ACQ num_exp: 1 time_per_exp: 4S priority: 1 param_1: DATA-FORMAT=ANALOG, req_1: ONBOARD ACQ FOR 10.5; ! linenum: 10.500 sequence_1: USE sequence_2: VIS targname: HD199140 s_to_n: 1000 s_to_n_time: 1S priority: 2 ! linenum: 10.900 targname: HD205021 config: HSP/VIS opmode: ACQ num_exp: 1 time_per_exp: 4S priority: 1 param_1: DATA-FORMAT=ANALOG, req_1: ONBOARD ACQ FOR 11; ! linenum: 11.000 targname: HD205021 config: HSP/VIS opmode: PRISM aperture: 1.0 sp_element: F551W/F240W num_exp: 1 time_per_exp: 5H s_to_n: 1000 s_to_n_time: 1S priority: 2 param_1: SAMPLE-TIME=0.1, ! ! end of exposure logsheet ! No scan data records found