! File: 1242C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:07:28:03 coverpage: title_1: DUST LANES AND FILAMENTARY STRUCTURES IN DOMINANT ELLIPTICAL GALAXIES sci_cat: GALAXIES & CLUSTERS sci_subcat: GAS proposal_for: GTO/FOC pi_fname: F. DUCCIO pi_lname: MACCHETTO pi_inst: ESA, SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA pi_phone: 301-338-4790 keywords_1: DOMINANT CLUSTER GALAXY, FILAMENTS, COOLING DUST hours_pri: 2.00 num_pri: 2 pi_position: CHIEF, ISB off_fname: F. MACCHETTO ! end of coverpage abstract: line_1: Observations made with the best obtainable ground based angular resolution are line_2: insufficient to determine the kinematic structure of the filaments of dominant line_3: galaxies in clusters, the physical relation between the dust and ionized gas, line_4: and the origin of the filaments. Therefore, follow-up broad band U and B line_5: exposures with the FOC will be obtained. The small extent of the filaments (r~ line_6: 10") match well with the field of view of the f/48 relay. From published line_7: surface photometry we estimate that we can get good photometric accuracy (~2 line_8: per cent) within the allotted time. By exploiting the greater than one order line_9: of magnitude improvement in angular resolution we will acquire deeper line_10: understanding of these important astrophysical issues, especially the line_11: interrelation between the observed dust and ionized gas and an implied cooling line_12: flow around the galaxies. ! ! end of abstract general_form_proposers: lname: MACCHETTO fname: F. DUCCIO inst: ESA, SPACE TELESCOPE SCIENCE INSTITUTE country: USA esa: Y ! lname: NORGAARD-NIELSEN fname: H. mi: J. inst: COPENHAGEN UNIVERSITY OBSERVATORY country: DENMARK esa: Y ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: All exposures to be expected in Cycle 1 ! question: 13 section: 1 line_1: Broadband U and B observations of two dominant elliptical cluster galaxies will line_2: be carried out to study their filamentary structure and dust and gas line_3: distribution. ! !end of general form text general_form_address: lname: MACCHETTO fname: F. DUCCIO category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: HOMEWOOD CAMPUS addr_2: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA phone: (301) 338-4790 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC4696 descr_1: BRIGHTEST ELLIPTICAL GALAXY IN CENTAURUS C descr_2: LUSTER pos_1: RA = 12H 46M 3.51S +/- 0.02S, pos_2: DEC = -41D 2' 18.7" +/- 3" equinox: 1950 pm_or_par: N rv_or_z: V=2925 acqpr_1: EXT plate_req: N plate_avail: N fluxnum_1: 1 fluxval_1: SURF(B)=3.6E-17 ! targnum: 2 name_1: NGC4374 name_2: M84 descr_1: BRIGHT ELLIPTICAL GALAXY IN VIRGO pos_1: RA = 12H 22M 31.5S +/- 0.1S, pos_2: DEC = +13D 9' 49.6" +/- 1" equinox: 1950 pm_or_par: N rv_or_z: V=1011 acqpr_1: EXT plate_req: N plate_avail: N fluxnum_1: 1 fluxval_1: SURF(B)=1.4E-16 fluxnum_2: 2 fluxval_2: SURF(U)=9.1E-17 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: NGC4696 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F372M num_exp: 2 time_per_exp: 20M s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: PIXEL=50X25 req_1: CYCLE 1 / 1-8 ! linenum: 2.000 targname: NGC4696 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F320W num_exp: 1 time_per_exp: 15M s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: PIXEL=50X25 ! linenum: 3.000 targname: NGC4696 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F120M num_exp: 1 time_per_exp: 40M s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: PIXEL=50X25 comment_1: MAY BE SPLIT INTO TWO 20M IF REQUIRED ! linenum: 4.000 targname: NGC4696 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F120M num_exp: 1 time_per_exp: 40M s_to_n: 20 fluxnum_1: 1 priority: 1 ! linenum: 5.000 targname: NGC4696 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F140M num_exp: 1 time_per_exp: 30M s_to_n: 20 fluxnum_1: 1 priority: 1 ! linenum: 6.000 targname: NGC4696 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F372M num_exp: 1 time_per_exp: 40M s_to_n: 20 fluxnum_1: 1 priority: 1 ! linenum: 7.000 targname: NGC4696 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F320W num_exp: 1 time_per_exp: 20M s_to_n: 20 fluxnum_1: 1 priority: 1 ! linenum: 8.000 targname: NGC4696 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F430W num_exp: 1 time_per_exp: 20M s_to_n: 20 fluxnum_1: 1 priority: 1 ! ! end of exposure logsheet ! No scan data records found