! File: 1108C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:02:01:54 coverpage: title_1: PLANETARY NEBULAE NUCLEI DISCOVERY (WF/PC-04) sci_cat: STELLAR ASTROPHYSICS proposal_for: GTO/WFC pi_title: PROF. pi_fname: JAMES pi_mi: A. pi_lname: WESTPHAL pi_inst: CALTECH pi_country: USA pi_phone: (818) 356-4900 keywords_1: PLANETARY NEBULAE, EVOLUTION MASS LOSS, NEBULA hours_pri: 3.50 num_pri: 4 pi_position: PROFESSOR OF PLANETA ! end of coverpage abstract: line_1: The central star for some planetary nebulae have not been observed. It is line_2: believed that these PN nuclei have temperatures in excess of 100000dK and the line_3: large flux in the far ultraviolet produces a nebular surface brightness that line_4: overwhelms the stellar radiation in the visual when resolution is seeing line_5: limited. The WF/PC spatial resolution will enhance the contrast by the order line_6: of 100 while an additional enhancement will be achieved by observing in the UV. line_8: This program should result in the detection of these central stars and provide line_9: sufficient photometric data to determine the nature of the central star and line_10: interstellar extinction. ! ! end of abstract general_form_proposers: lname: WESTPHAL fname: JAMES mi: A. inst: CALTECH country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: The observations require several exposures with different filters in order to line_2: cover the wide spectral range from 1500 angstroms to 6220 angstroms, required line_3: to determine interstellar extinction and effective temperature. Early line_4: observations in cycle 0 or 1 will provide support for further observations of line_5: these objects with WF/PC or other instruments. ! question: 5 section: 1 line_1: No real time or special scheduling required. ! question: 8 section: 1 line_1: No supporting or coordinated observations required. ! question: 13 section: 1 line_1: This program is planned in order to detect the central stars in NGC 7027, NGC line_2: 2440, Me2-1, and IC 2165 where they have not been detected, presumably because line_3: the bulk of the radiation is in the form of ionizing photons. The photometry line_4: should provide data on the effective temperature of these stars. ! !end of general form text general_form_address: lname: WESTPHAL fname: JAMES mi: A. title: PROF. category: PI inst: CALTECH addr_1: M/S 170-25 addr_2: DIVISION OF GEOLOGICAL & addr_3: PLANETARY SCIENCES city: PASADENA state: CA zip: 91125 country: USA ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC7027 descr_1: PLANETARY NEBULA descr_2: NUCLEUS pos_1: RA= 21H07M0.2S +/- 0.1S, pos_2: DEC= +42D14'18" +/- 1" equinox: 2000 pm_or_par: NO ! targnum: 2 name_1: NGC2440 descr_1: PLANETARY NEBULA descr_2: NUCLEUS pos_1: RA= 07H41M54.4S +/- 0.1S, pos_2: DEC= -18D12'34.5" +/- 1" equinox: 2000 pm_or_par: NO ! targnum: 5 name_1: PSF-NGC2440 descr_1: UV PSF STAR FOR descr_2: NGC 2440 pos_1: RA= 07H 41M 31.04S +/- 0.1S, pos_2: DEC= -17D 49' 32.1" +/- 1" equinox: 1950 pm_or_par: NO ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 7.000 targname: NGC7027 config: WFC opmode: IMAGE aperture: ALL sp_element: F284W num_exp: 1 time_per_exp: 150S priority: 2 param_1: PRE-FLASH=YES,CR-SPLIT=NO req_1: CYCLE 0 / 7-7.2; req_2: POS TARG -14,14 / 7-7.2; req_3: GROUP 7-7.2 NO GAP; req_5: SAME POS FOR 7.1-7.2 AS 7; req_6: SAME ORIENT FOR 7.1-7.2 AS 7 comment_1: CYCLE 0 VERSION OF PROPOSAL comment_2: ADC/RML 11/21/90 ! linenum: 7.100 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F336W num_exp: ^ time_per_exp: 80S priority: ^ param_1: ^ ! linenum: 7.200 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F439W num_exp: ^ time_per_exp: 60S priority: ^ param_1: ^ ! linenum: 7.250 targname: NGC7027 config: WFC opmode: IMAGE aperture: ALL sp_element: F656N num_exp: 1 time_per_exp: 1900S priority: 1 param_1: CR-SPLIT=NO, param_2: PRE-FLASH=YES req_1: CYCLE 0; comment_1: ONE ORBIT. ADJUST TIME +/- 20 PERCENT comment_2: TO FIT. THIS EXPOSURE DERIVED FROM comment_3: PROPOSAL 1107 AND PLACED HERE TO LINK comment_4: WITH OTHER EXPOSURES IN NGC 7027 IF comment_5: SCHEDULED. ! linenum: 8.000 targname: NGC2440 config: WFC opmode: IMAGE aperture: ALL sp_element: F194W num_exp: 2 time_per_exp: 300S priority: 1 param_1: PRE-FLASH=YES,CR-SPLIT=NO req_1: CYCLE 0 / 8-8.5; req_2: POS TARG 10,10 / 8-8.5; req_3: GROUP 8-8.5 NO GAP; req_4: SAME POS FOR 8.1-8.5 AS 8; req_5: SAME ORIENT FOR 8.1-8.5 AS 8; req_6: NON-INT ! linenum: 8.100 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F284W num_exp: 1 time_per_exp: 180S priority: ^ param_1: ^ ! linenum: 8.200 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F336W num_exp: ^ time_per_exp: 100S priority: ^ param_1: ^ ! linenum: 8.300 targname: NGC2440 config: WFC opmode: IMAGE aperture: ALL sp_element: F439W num_exp: 2 time_per_exp: 60S priority: 1 param_1: PRE-FLASH=YES,CR-SPLIT=NO req_1: NON-INT comment_1: DUP EXPS ONLY DONE IN F439W comment_2: AND F157W; LOOK FOR REAL comment_3: OBJECTS THERE AND APPLY TO comment_4: OTHER EXPOSURES. ! linenum: 8.400 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F517N num_exp: ^ time_per_exp: 180S priority: ^ param_1: ^ ! linenum: 8.500 targname: NGC2440 config: WFC opmode: IMAGE aperture: ALL sp_element: F622W num_exp: 2 time_per_exp: 30S priority: 1 param_1: PRE-FLASH=YES,CR-SPLIT=NO ! linenum: 8.600 targname: PSF-NGC2440 config: WFC opmode: IMAGE aperture: ALL sp_element: F194W num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=YES,CR-SPLIT=NO req_1: CYCLE 0 / 8.6-8.9; req_2: POS TARG 10,10 / 8.6-8.9; req_3: GROUP 8.6-8.9 NON-INT comment_1: UV-BRIGHT STAR FOR PSFS. comment_2: SAO 153315; B1VP V=8.1 ! linenum: 8.650 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F284W num_exp: ^ time_per_exp: 2.3S priority: ^ param_1: ^ ! linenum: 8.700 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F336W num_exp: ^ time_per_exp: 0.5S priority: ^ param_1: ^ ! linenum: 8.750 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F439W num_exp: ^ time_per_exp: 0.2S priority: ^ param_1: ^ ! linenum: 8.800 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F517N num_exp: ^ time_per_exp: 0.8S priority: ^ param_1: ^ ! linenum: 8.900 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F622W num_exp: ^ time_per_exp: 0.11S priority: ^ param_1: ^ ! ! end of exposure logsheet ! No scan data records found