! File: 1247C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:07:39:54 coverpage: title_1: RESOLUTION OF NUCLEI IN VIRGO DWARF ELLIPTICALS sci_cat: GALAXIES & CLUSTERS sci_subcat: NUCLEI 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: DWARF ELLIPTICALS, VIRGO CLUSTER hours_pri: 1.00 num_pri: 3 foc: X pi_position: CHIEF, ISB off_fname: F. off_lname: MACCHETTO ! end of coverpage abstract: line_1: The core radii of globular clusters range from a few 0.1 pc to a few parsecs. line_2: Dwarf E nuclei most likely are dynamical entities quite similar to globular line_3: clusters hence their core radii must lie in the same range. At the Virgo line_4: distance of about 22 Mpc this translates into an angular range of 0.001" to line_5: 0.1" for the core radii, with total radii at best 10 times larger. Features of line_6: such extremely small angular size can only be resolved by the FOC. ! ! end of abstract general_form_proposers: lname: BINGGELI fname: B. inst: BASEL, UNIVERSITY OF country: SWITZERLAND esa: Y ! lname: TAMMANN fname: G. mi: A. inst: BASEL, UNIVERSITY OF country: SWITZERLAND esa: Y ! lname: MACCHETTO fname: F. DUCCIO inst: ESA, SPACE TELESCOPE SCIENCE INSTITUTE country: USA esa: Y ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: All exposures to be executed in cycle 1. line_5: NOTE: Page added on 7 May 85 ! question: 13 section: 1 line_1: Dwarf elliptical nuclei are dynamical entities similar to globular clusters, line_2: hence their core radii must be in the same range as the G.C. radii, i.e. 0.1pc line_3: to a few parsecs. At the distance of Virgo this corresponds to 0.001" to 0.1". line_4: FOC observations will be carried out to attempt to resolve these features. ! !end of general form text general_form_address: lname: MACCHETTO fname: F. DUCCIO category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: HOMEWOOD CAMPUS city: BALTIMORE state: MD zip: 21218 country: USA phone: 301-338-4790 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: DW13D50 descr_1: DWARF ELLIPTICAL pos_1: RA = 12H 23M 34.2S +/- 0.1S, pos_2: DEC = +13D 08.2' +/- 1" equinox: 1950 plate_req: N fluxnum_1: 1 fluxval_1: SURF(V)=18.8 ! targnum: 2 name_1: VCC833 descr_1: DWARF ELLIPTICAL pos_1: RA = 12H 23M 12.6S +/- 0.1S, pos_2: DEC = +13D 17.7' +/- 1" equinox: 1950 plate_req: N fluxnum_1: 1 fluxval_1: SURF(V)=20.5 ! targnum: 3 name_1: DW10D43 descr_1: DWARF ELLIPTICAL pos_1: RA = 12H 29M 15.0S +/- 0.1S, pos_2: DEC = +10D 56.7' +/- 1" equinox: 1950 plate_req: N fluxnum_1: 1 fluxval_1: SURF(V)=20.2 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: DW13D50 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F342W num_exp: 1 time_per_exp: 10M s_to_n: 5 priority: 1 req_1: CYCLE 2 / 1-6 ! linenum: 2.000 targname: DW13D50 config: FOC/288 opmode: IMAGE aperture: 512X512 sp_element: F220W num_exp: 1 time_per_exp: 20M s_to_n: 5 priority: 1 ! linenum: 3.000 targname: VCC833 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F342W num_exp: 1 time_per_exp: 5M s_to_n: 5 priority: 1 ! linenum: 4.000 targname: VCC833 config: FOC/288 opmode: IMAGE aperture: 512X512 sp_element: F220W num_exp: 1 time_per_exp: 10M s_to_n: 5 priority: 1 ! linenum: 5.000 targname: DW10D43 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F342W num_exp: 1 time_per_exp: 5M s_to_n: 5 priority: 2 ! linenum: 6.000 targname: DW10D43 config: FOC/288 opmode: IMAGE aperture: 512X512 sp_element: F220W num_exp: 1 time_per_exp: 10M s_to_n: 5 priority: 2 ! ! end of exposure logsheet ! No scan data records found