! File: 2591C.PROP ! Database: PEPDB ! Date: 17-FEB-1994:08:49:53 coverpage: title_1: ELLIPTICALS WITH KINEMATICALLY-DISTINCT NUCLEI sci_cat: GALAXIES & CLUSTERS sci_subcat: NUCLEI/CORES proposal_for: GO pi_title: PROF. pi_fname: GARTH pi_mi: D. pi_lname: ILLINGWORTH pi_inst: CALIFORNIA, UNIVERSITY OF, SANTA CRUZ pi_country: USA pi_phone: 408-459-2843 keywords_1: GALAXY TYPE: ELLIPTICAL GALAXY; ACTIVE GALAXIES: RADIO keywords_2: GALAXY; GALACTIC STRUCTURE: NUCELUS; ASTROPHYSICS: KINEMATICS, DYNAMICS, FORMATI hours_pri: 5.30 num_pri: 6 wf_pc: X funds_amount: 34786 funds_length: 12 funds_date: JAN-90 pi_position: PROFESSOR off_fname: GEOFFREY K. off_lname: PULLUM off_title: DEAN off_inst: UNIVERSITY OF CALIFORNIA, SANTA CRUZ off_addr_1: 301 APPLIED SCIENCES BUILDING off_city: SANTA CRUZ off_state: CA off_zip: 95064 off_country: USA ! end of coverpage abstract: line_1: The recent discovery by Franx and Illingworth of a kinematically-distinct line_2: stellar component in the nucelus of the giant radio elliptical IC 1459, and the line_3: confirmation by several groups that such components are quite common, has added line_4: a valuable diagnostic tool for understanding the structure and the formation of line_5: ellipticals. Thirteen examples are now known, from a sample of nearly 50 line_6: ellipticals. Several, like IC 1459, have counter-rotating subcomponents, and line_7: one, NGC 4406, in which the angular momenta of the distinct core and the other line_8: envelope are orthogonal, could well be an example of an elliptical whose line_9: rotation axis is along the long axis. These substantial (=10^10 Mo for IC line_10: 1459) components are likely to be valuable diagnostics of the dynamical state line_11: of the nuclei of ellipticals. Further study will address their formation by line_12: investigating whether these components could be the end result of a "starburst" line_13: event, or of the accretion and settling of a stellar companion, or of the line_14: merging of primordial subclumps. We propose to take advantage of the high line_15: resolution imaging capability of HST through a PC multicolor imaging program of line_16: 3 examples that are not part of the GTO PC imaging program, with the goal line_17: of elucidating the properties of these components and the nuclei within which line_18: they reside. These data are an essential complement to an extensive ongoing line_19: ground-based spectroscopic and CCD imaging program. ! ! end of abstract general_form_proposers: lname: ILLINGWORTH fname: GARTH title: P.I. mi: D. inst: CALIFORNIA, UNIVERSITY OF, SANTA CRUZ country: USA ! lname: FRANX fname: MARIJN inst: CFA country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 0 line_1: Revised Section 3 -- short description of program. line_3: Three galaxies are to be studied with the PC -- with PC 7 in particular. The line_4: galaxy nuclei will be centered in PC7, but the data from all 4 PC CCDs will be line_5: needed. We have carefully evaluated the central surface brightnesses of the 3 line_6: galaxies from ground-based surface photometry. We have listed these in the line_7: target list. It is important to realize, however, that these sources are line_8: extended and have a range of surface brightnesses that are of interest. line_9: For example, there may very well be bright cusps in the nuclei. Therefor we line_10: have chosen to take a range of integration times. This will ensure line_11: that we have usable data in the nuclei if the longer integrations saturate. line_12: The longest exposures will ensure us that we obtain high S/N at a radius of line_13: 1 arcsec from the nucleus (where the surface brightness is lower than those line_14: in the target list). Furthermore, they will allow us to detect the surface line_15: brightness fluctuations caused by ABG stars; hence they are very valuable. line_16: For all three galaxies, we take 3 exposures in V(=F555W) and I (=F785LP). line_17: The typical S/N for these exposures are 20, 70, and 130, using the fluxes line_18: given in the target list. We supplement these with one exposure in B (=F439W) line_19: for each galaxy, giving a typical S/N of 15, about equal to the S/N of the line_20: shortest exposures in V and I. If the sensitivity of the PC turns out to be line_21: very different from the anticipated values, it will probably be necessary to line_22: set up new exposure sequences; as simple scaling of the integration times line_23: will not give optimal use of telescope time. ! !end of general form text general_form_address: lname: ILLINGWORTH fname: GARTH title: PROF. category: PI inst: LICK OBSERVATORY addr_1: UNIVERSITY OF CALIFORNIA city: SANTA CRUZ state: CA zip: 95064 country: USA ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: IC1459 descr_1: GALAXY; TYPE=E; NUCLEUS pos_1: RA = 22H 54M 23.1S +/- 3", pos_2: DEC = -36D 43' 47" +/- 2" equinox: 1950.0 rv_or_z: V = 1647 fluxnum_1: 1 fluxval_1: SURF(V) = 15.50 +/- 1.0 fluxnum_2: 2 fluxval_2: SURF(I) = 14.50 +/- 1.0 fluxnum_3: 3 fluxval_3: SURF(B) = 16.30 +/- 1.0 ! targnum: 2 name_1: NGC4406 descr_1: GALAXY; TYPE=E; NUCLEUS pos_1: RA = 12H 23M 39.7S +/- 3", pos_2: DEC = +13D 13' 24" +/- 2" equinox: 1950.0 rv_or_z: V = -221 fluxnum_1: 1 fluxval_1: SURF(V) = 15.80 +/- 1.0 fluxnum_2: 2 fluxval_2: SURF(I) = 14.80 +/- 1.0 fluxnum_3: 3 fluxval_3: SURF(B) = 16.60 +/- 1.0 ! targnum: 3 name_1: NGC4365 descr_1: GALAXY; TYPE=E; NUCLEUS pos_1: RA = 12H 21M 55.0S +/- 3", pos_2: DEC = +07D 35' 42" +/- 2" equinox: 1950.0 rv_or_z: V = 1240 fluxnum_1: 1 fluxval_1: SURF(V) = 16.30 +/- 1.0 fluxnum_2: 2 fluxval_2: SURF(I) = 15.30 +/- 1.0 fluxnum_3: 3 fluxval_3: SURF(B) = 17.10 +/- 1.0 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: IC1459 config: PC opmode: IMAGE aperture: P7 sp_element: F555W num_exp: 1 time_per_exp: 20S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: CR-SPLIT = NO, param_2: PRE-FLASH = YES req_1: GUID TOL 0.030" / 1-21; req_2: NON-INT / 1-21; comment_1: LINES 1-21 USE CENTER OF PC 7 comment_2: -- SAME POS FOR 2-7 AS 1 DESIRABLE comment_3: --EXPOSURES 1-5 FIT IN ONE ORBIT ! linenum: 2.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 200S s_to_n: 70 fluxnum_1: 1 priority: 1 param_1: ^ req_1: SAME POS FOR 2 AS 1 ! linenum: 3.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F785LP num_exp: 1 time_per_exp: 30S s_to_n: 20 fluxnum_1: 2 priority: 1 param_1: ^ ! linenum: 4.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 300S s_to_n: 70 fluxnum_1: 2 priority: 1 param_1: ^ req_1: SAME POS FOR 4 AS 3 ! linenum: 5.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F439W num_exp: 1 time_per_exp: 225S s_to_n: 15 fluxnum_1: 3 priority: 1 param_1: ^ ! linenum: 6.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F555W num_exp: 1 time_per_exp: 1000S s_to_n: 130 fluxnum_1: 1 priority: 1 param_1: ^ comment_1: EXPOSURES 6-7 FIT IN ONE ORBIT ! linenum: 7.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F785LP num_exp: 1 time_per_exp: 1400S s_to_n: 130 fluxnum_1: 2 priority: 1 param_1: ^ ! linenum: 8.000 targname: NGC4406 config: PC opmode: IMAGE aperture: P7 sp_element: F555W num_exp: 1 time_per_exp: 20S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: CR-SPLIT = NO, param_2: PRE-FLASH = YES comment_1: SAME POS FOR 9-14 AS 8 DESIRABLE comment_2: -- EXPOSURES 8-12 FIT IN ONE ORBIT ! linenum: 9.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 200S s_to_n: 60 fluxnum_1: 1 priority: 1 param_1: ^ req_1: SAME POS FOR 9 AS 8 ! linenum: 10.000 targname: NGC4406 config: PC opmode: IMAGE aperture: P7 sp_element: F785LP num_exp: 1 time_per_exp: 30S s_to_n: 20 fluxnum_1: 2 priority: 1 param_1: CR-SPLIT = NO, param_2: PRE-FLASH = YES ! linenum: 11.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 300S s_to_n: 60 fluxnum_1: 2 priority: 1 param_1: ^ req_1: SAME POS FOR 11 AS 10 ! linenum: 12.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F439W num_exp: 1 time_per_exp: 225S s_to_n: 15 fluxnum_1: 3 priority: 1 param_1: ^ ! linenum: 13.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F555W num_exp: 1 time_per_exp: 1000S s_to_n: 130 fluxnum_1: 1 priority: 1 param_1: ^ comment_1: EXPOSURES 13-14 FIT IN ONE ORBIT ! linenum: 14.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F785LP num_exp: 1 time_per_exp: 1400S s_to_n: 130 fluxnum_1: 2 priority: 1 param_1: ^ ! linenum: 15.000 targname: NGC4365 config: PC opmode: IMAGE aperture: P7 sp_element: F555W num_exp: 1 time_per_exp: 20S s_to_n: 15 fluxnum_1: 1 priority: 1 param_1: CR-SPLIT = NO, param_2: PRE-FLASH = YES comment_1: SAME POS FOR 16-21 AS 15 DESIRABLE comment_2: -- EXPOSURES 15-18 FIT IN ONE ORBIT ! linenum: 16.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 400S s_to_n: 60 fluxnum_1: 1 priority: 1 param_1: ^ req_1: SAME POS FOR 16 AS 15 ! linenum: 17.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F785LP num_exp: 1 time_per_exp: 30S s_to_n: 15 fluxnum_1: 2 priority: 1 param_1: ^ ! linenum: 18.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 600S s_to_n: 60 fluxnum_1: 2 priority: 1 param_1: ^ req_1: SAME POS FOR 18 AS 17 ! linenum: 19.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F439W num_exp: 1 time_per_exp: 500S s_to_n: 15 fluxnum_1: 3 priority: 1 param_1: ^ comment_1: EXPOSURES 19-21 FIT IN ONE ORBIT ! linenum: 20.000 targname: NGC4365 config: PC opmode: IMAGE aperture: P7 sp_element: F555W num_exp: 1 time_per_exp: 650S s_to_n: 80 fluxnum_1: 1 priority: 1 param_1: CR-SPLIT = NO, param_2: PRE-FLASH = YES ! linenum: 21.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F785LP num_exp: 1 time_per_exp: 1000S s_to_n: 80 fluxnum_1: 2 priority: 1 param_1: ^ ! ! end of exposure logsheet ! No scan data records found