! $Id: 5741,v 6.1 1994/08/19 19:47:36 pepsa Exp $ coverpage: title_1: GALAXIES AND CLUSTERS, WFPC GTO AUGMENTATION, title_2: CYCLE 4 sci_cat: GALAXIES & CLUSTERS proposal_for: AUG/WF2 cont_id: 4854 pi_title: PROF. pi_fname: JAMES pi_mi: A. pi_lname: WESTPHAL pi_inst: CALTECH pi_country: USA pi_phone: (818) 356-4900 pi_position: PROF. PLANETARY SCI. keywords_1: INTERSTELLAR MEDIUM, HII REGIONS, LMC hours_pri: 3.56 num_pri: 3 ! end of coverpage abstract: line_1: We propose to observe 10 galaxy nuclei from the original GTO line_2: proposal 1118 that otherwise will be lost for lack of time. line_3: These 10 include seven of the nearest normal spiral galaxies, from line_4: types S0 through Sc. This is the largest sample of late-type line_5: spiral nuclei being done with HST that we know of and is essential line_6: to the collection of a representative catalog of all galaxy line_7: types. The remaining three galaxies include a classic Seyfert line_8: galaxy (NGC 4151), a protype emission- line elliptical (NGC 1052), line_9: and a well known blue elliptical that is a post-starburst and line_10: merger candidate (NGC 1600). ! ! 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: F555W PC6 images of the nuclear regions of 10 spiral and abnormal line_2: galaxies are requested. Objects to be centered in PC6 location, as line_3: used in the STScI PSF monitor program. PSF Monitor exposures should line_4: provide adequate information for deconvolution purposes; no additional line_5: PSF stars are needed. Exposures should give 1300DN in the nuclear line_6: pixel, though ground-based estimates of the surface brightness of line_7: several galaxies are uncertain. Experience with existing HST galaxy line_8: images suggest that the likelihood of saturation is small, however. line_9: Exposures are duplicated to provide CR-splits. PCS mode is to be line_10: Coarse Track, as the PC is undersampled. Jitter data are required line_11: to reconstruct the true PSF. ! question: 4 section: 1 line_1: These nuclei are uniformly unresolved from the ground and require line_2: HST's narrower PSF. Existing HST images of galaxy nuclei are revealing line_3: a wealth of different structures and behavior that cannot be discerned line_4: from ground-based images. ! ! question: 8 section: 1 line_1: Accurate PSFs are essential. We are relying on the weekly STScI line_2: PSF monitoring program in F555W/PC6, and we want our galaxies to be line_3: centered at the same chip position used for the monitor. See remarks line_4: in Section 3. line_5: We will also require accurate flat fields in F555W/PC6 to +/- 1% in line_6: the central 200x200 pixels and +/- 2% over the whole chip. Jitter line_7: data are required to reconstruct the true PSFs. ! !end of general form text general_form_address: lname: LAUER fname: TOD mi: R. 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: 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 ! 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 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC4274-NUC descr_1: E, 301 pos_1: RA=12H 19M 50.6S +/- 0.1S, pos_2: DEC=+29D 36' 51.9" +/-1" equinox: 2000 rv_or_z: V=913 fluxnum_1: 1 fluxval_1: SURF(V)=14.0+/-1.0 fluxnum_2: 2 fluxval_2: SURF(I)=12.6+/-1.0 comment_1: NEARBY SB OR SAB GALAXY ! targnum: 2 name_1: NGC4736-NUC descr_1: E, 301 pos_1: RA=12H48M32.0S+/-0.3S, pos_2: DEC=+41D23'31"+/-6" equinox: 1950 rv_or_z: V=311 fluxnum_1: 1 fluxval_1: SURF(V)=14.0+/-1.0 fluxnum_2: 2 fluxval_2: SURF(I)=12.6+/-1.0 comment_1: NEARBY SB GALAXY ! targnum: 3 name_1: NGC936-NUC descr_1: E, 302, 919 pos_1: RA=02H25M04.6S+/-0.3S, pos_2: DEC=-01D22'43"+/-6" equinox: 1950 rv_or_z: V=1404 fluxnum_1: 1 fluxval_1: SURF(V)=14.0+/-1.0 fluxnum_2: 2 fluxval_2: SURF(I)=12.6+/-1.0 comment_1: SBO GALAXY ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: NUC targname: # config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F555W num_exp: 1 time_per_exp: 16S fluxnum_1: # priority: # param_1: CR-SPLIT=NO req_1: GROUP 1-2 NO GAP; linenum: 2.000 sequence_1: DEFINE sequence_2: NUC targname: # config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F555W num_exp: 2 time_per_exp: 140S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO req_1: SAME POS FOR 2 AS 1; ! linenum: 11.000 sequence_1: USE sequence_2: NUC targname: NGC4274-NUC req_1: CYCLE 4 / 11-13; ! linenum: 12.000 sequence_1: USE sequence_2: NUC targname: NGC4736-NUC ! linenum: 13.000 sequence_1: USE sequence_2: NUC targname: NGC936-NUC ! ! end of exposure logsheet ! No scan data records found