! File: 3286C.PROP ! Database: PEPDB ! Date: 19-FEB-1994:01:28:27 coverpage: title_1: NUCLEI OF NEARLY NORMAL GALAXIES (WF/PC-14): title_2: CYCLE 2 sci_cat: GALAXIES & CLUSTERS 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: GALACTIC NUCLEI, GALACTIC BULGES, LOCAL GROUP, DUST keywords_2: LANES, GLOBULAR CLUSTERS, SURFACE PHOTOMETRY hours_pri: 3.86 num_pri: 3 pi_position: PROF. PLANETARY SCI. ! end of coverpage abstract: line_1: Direct images of the nuclei of nearby galaxies taken with the Planetary Camera line_2: will be used to measure the space density profile of luminous material and the line_3: nuclear color gradients in these objects. Galaxies will be imaged with the line_4: F555W and F785LP filters. Serveral objects known to contain ionized gas will line_5: also be imaged in narrow-band filters to obtain the gas distribution. In M31 a line_6: special series of ultra-violet exposures will be taken to study the hot stellar line_7: population. The sample of objects contains several normal ellipticals covering line_8: a broad range in nuclear surface brightness and concentration class, several line_9: nearby galaxies covering a range of Hubble types, and a few Seyfert and line_10: otherwise slightly abnormal nuclei.The images taken will also be searched for line_11: bright stars, inner globular clusters, and absorbing interstellar dust. ! ! 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: Direct exposures are proposed with the Planetary Camera and filters F555W and line_2: F785LP of duration 2 sec to 2700 sec. Desired S/N is 100 in the central pixel. line_3: Shorter exposures are included for cosmic ray removal and possible stellar line_4: nuclear components. Special UV exposures of M31 are also proposed with the line_5: Wide Field Camera. Standard stars are selected near each galaxy to monitor the line_6: point-spread function (PSF). It may not actually be necessary to observe all line_7: of these if the PSF proves to be stable. Distribution of observations with line_8: observing period: line_10: 1st Year - NGC 221, NGC 224 (PC), NGC 3031, NGC 598(PC), NGC 3379, NGC 1052, line_11: NGC 1316, NGC 4278, NGC 3311, NGC1068, NGC 4151, NGC 4283, line_12: NGC 4472, NGC 4594, NGC 128, NGC3998, NGC 5102, NGC 2681, line_13: NGC 5457, NGC 1097, NGC 4736, NGC936, NGC 3384 line_15: 2nd Year NGC 4621, NGC 1600, NGC 4552, NGC4649, NGC 5813, NGC 5194, line_16: NGC 4274, NGC 5195, NGC 2815, NGC 7768, NGC224 (WF), NGC 598 (WF), line_17: NGC 4565 (WF) line_18: CYCLE Specifiations given in exposure list. ! question: 5 section: 1 line_1: For many objects, an exposure sequence has been designed that is intended to line_2: fit within one orbit. Such objects are designated by the special requirement line_3: "SEQ X-Y WITHIN 50 m NO GAP". The purpose of this requirement is to ensure line_4: that all exposures register as well as possible, hence the request that the line_5: telescope not be slewed between exposures. In no case does the exposure line_6: sequence extend beyond 50m (one orbital opportunity). ! question: 6 section: 1 line_1: Limiting noise source is readout noise; exposures should not be interrupted. line_2: Special calibration of point spread function (PSF) may be needed for proper line_3: deconvolution of nuclear structure. A star near each galaxy is included for line_4: this purpose. It is also desired that all exposures longer than 1000 sec be line_5: taken after the telescope has passed beyond the limb of the Earth (see note on line_6: "dark time on exposure logsheets). It is not requested that the telescope line_7: actually be within the Earth's shadow. Dark time is needed to minimize diffuse line_8: scattered light and max. signal at faint surface brightness levels. The above line_9: guideline of 1000 sec may need modification after real experience in orbit. ! question: 8 section: 1 line_1: Special orientations: NGC4565 - for maximum spatial coverage of dust lane and line_2: disk in a single exposure. ! question: 13 section: 1 line_1: Nuclear luminosity distributions and color gradients will be studied in 33 line_2: nearby galaxies using filters F555W and F785LP and the Planetary Camera. line_3: Narrow-band images will also be taken of nuclei containing interstellar gas. line_4: Images will be searched for bright stars, globular clusters, and interstellar line_5: dust. UV exposures of M31 using the WFC will be used to study hot stars in the line_6: stellar population in the nuclear bulge. ! !end of general form text general_form_address: lname: LAUER fname: TOD category: CON inst: NOAO/KPNO addr_1: 950 N. CHERRY addr_2: P.O. BOX 26732 city: TUCSON state: AZ zip: 85726 country: USA phone: (602)327-5511 ! 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 phone: 818-356-4900 ! lname: GUNN fname: JAMES mi: E. category: CON inst: PRINCETON UNIVERSITY addr_1: ASTROPHYSICAL SCIENCE addr_2: PEYTON HALL city: PRINCETON state: NJ zip: 08540 country: USA phone: (609)452-3800 ! lname: FABER fname: SANDRA mi: M. category: CON inst: UC SANTA CRUZ addr_1: LICK OBSERVATORY addr_2: NATURAL SCIENCE II city: SANTA CRUZ state: CA zip: 95064 country: USA phone: 408-459-2944 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC3311-NUC descr_1: E,303 pos_1: RA=10H 34M 21.6S +/- 0.3S, pos_2: DEC=-27D 16' 08" +/- 6" equinox: 1950 rv_or_z: V=3593 fluxnum_1: 1 fluxval_1: SURF(V)=18.0 +/- 1.0 ! targnum: 2 name_1: NGC4552-NUC descr_1: E,303 pos_1: RA= 12H 33M 08.3S +/- 0.3S, pos_2: DEC= +12D 49' 54" +/- 6" equinox: 1950 rv_or_z: V=319 fluxnum_1: 1 fluxval_1: SURF(V)=15.1+/-0.5 fluxnum_2: 2 fluxval_2: SURF(I)=13.7+/-0.5 ! targnum: 3 name_1: NGC7768-NUC descr_1: E,303 pos_1: RA = 23H 48M 26.2S +/- 0.3S, pos_2: DEC = +26D 52' 09" +/-6" equinox: 1950 rv_or_z: V=3830 fluxnum_1: 1 fluxval_1: SURF(V)=17.1+/-0.5 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 33.000 sequence_1: DEFINE sequence_2: NUC targname: # config: PC opmode: IMAGE aperture: PC6 sp_element: F555W num_exp: 1 time_per_exp: 2S fluxnum_1: # priority: # param_1: CR-SPLIT=NO,PRE-FLASH=YES req_1: SAME POS FOR 34 AS 33; req_2: SEQ 33-34 NO GAP ! linenum: 34.000 sequence_1: ^ targname: # config: PC opmode: IMAGE aperture: PC6 sp_element: F555W num_exp: 2 time_per_exp: 10S fluxnum_1: # priority: # param_1: CR-SPLIT=NO,PRE-FLASH=YES req_1: SAME ORIENT FOR 34 AS 33 ! linenum: 58.000 targname: NGC3311-NUC config: PC opmode: IMAGE aperture: PC6 sp_element: F555W num_exp: 1 time_per_exp: 1200S priority: 2 param_1: CR-SPLIT=NO,PRE-FLASH=YES req_1: SEQ 58-59 NO GAP; req_2: PCS MODE C / 58-86; req_3: CYCLE 2 / 58-86 comment_1: REVISED 3/09/92 SMF/TRL/RML. comment_2: ONLY CYCLE 2. ! linenum: 59.000 targname: NGC3311-NUC config: PC opmode: IMAGE aperture: PC6 sp_element: F555W num_exp: 1 time_per_exp: 1800S priority: 2 param_1: CR-SPLIT=NO,PRE-FLASH=YES req_1: SAME POS FOR 59 AS 58; req_2: SAME ORIENT FOR 59 AS 58; ! linenum: 79.000 targname: NGC7768-NUC config: PC opmode: IMAGE aperture: PC6 sp_element: F555W num_exp: 1 time_per_exp: 1200S fluxnum_1: 1 priority: 2 param_1: CR-SPLIT=NO,PRE-FLASH=YES req_1: SAME POS FOR 80 AS 79; req_2: SAME ORIENT FOR 80 AS 79; req_3: SEQ 79-80 NO GAP; ! linenum: 80.000 targname: NGC7768-NUC config: PC opmode: IMAGE aperture: PC6 sp_element: F555W num_exp: 1 time_per_exp: 1800S fluxnum_1: 1 priority: 2 param_1: CR-SPLIT=NO,PRE-FLASH=YES ! linenum: 86.000 sequence_1: USE sequence_2: NUC targname: NGC4552-NUC time_per_exp: X50 fluxnum_1: 1 priority: 2 ! ! end of exposure logsheet ! No scan data records found