! File: 3409C.PROP ! Database: PEPDB ! Date: 19-FEB-1994:06:47:41 coverpage: title_1: A SEARCH FOR PLANETS AROUND NEARBY STARS title_2: REPEAT FOR HOPR #0006/10 sci_cat: STELLAR POPULATIONS proposal_for: RPT/FOC cont_id: 1274 pi_fname: CESARE pi_lname: BARBIERI pi_inst: PADOVA, UNIVERSITY OF pi_country: ITALY pi_phone: 049-829-3434 keywords_1: EXTRA-SOLAR PLANETS; SUB-STELLAR MASS COMPANIONS hours_pri: 24.00 num_pri: 19 realtime: X pi_position: PROFESSOR OF ASTRONO ! end of coverpage abstract: line_1: We propose to take advantage of the very high resolution, sensitivity and line_2: attenuation capabilities of the FOC to search for line_3: planets of other stars, in order to get direct proof of their existence and to line_4: obtain data on the formation of planetary systems. Stars like Eps Eri and line_5: Barnard's are prime candidates for this search, because they are close to the line_6: Sun and their motion seems to be perturbed by unseen low-mass companions. The line_7: FOC is very suited to carry out the search, thanks to the photon counting line_8: capabilities, and to the small line_9: pixel size resolving the structure of the PSF of the bright primary star. A line_10: roll-blinking technique will be used to improve the detection capabilities. ! ! end of abstract general_form_proposers: lname: LABEYRIE fname: A. inst: CERGA country: FRANCE esa: X ! lname: BARBIERI fname: CESARE inst: PADOVA, UNIVERSITY OF country: ITALY esa: X ! lname: NOTA fname: A. inst: ESA, EUROPEAN SPACE OPERATIONS CENTRE country: ITALY esa: X ! lname: ZINNECKER fname: H. inst: ROYAL OBSERVATORY, EDINBURGH country: UNITED KINGDOM esa: X ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: This program is a very difficult one; being largely of exploratory nature it line_2: requires a flexible schedule. Because the objects we line_3: are looking for are extremely faint, the finalisation of the observing strategy line_4: depends on the actual performance of ST+FOC, namely on the results of line_5: the SV phase. These considerations mean that the targets, exposure times and line_6: priorities in the Exposure Logsheets are our present best guesses. The target line_7: list comprises a few more objects than observable in the allocated time of 24h, line_8: in order to incorporate in the final scheme information that might come in the line_9: near future from ground observations. The total exposure time in the logsheet line_10: (26.8h instead of 24h) is determined by the inclusion of Prior.3 targets that line_11: may substitute for others not feasible in the GTO. line_12: The observing procedure ROLL is described in detail in Sect.2. ! question: 4 section: 1 line_1: ST is necessary to: line_2: -provide the highest contrast star/companion, line_3: -reach the 27th-28th V-mag line_4: Diffraction-limited performances, absence of atmospheric turbulence and line_5: diffuse luminosity, extremely accurate tracking all are requisite for a line_6: successfull outcome of this program. ! question: 5 section: 1 line_1: The program is largely of exploratory nature. line_4: Dark time is absolutely necessary. Flexible schedule line_5: is desirable to accomodate unforeseen discoveries (such as a companion much line_6: brighter than expected). ! question: 6 section: 1 line_1: Dark time absolutely necessary in order to reach the faintest magnitudes and to line_2: be able to properly cancel the wings of the bright star luminosity profile ! question: 7 section: 1 line_1: line_5: Off-line analysis includes refined algorithms for best line_6: geometrical and photometric operations; evaluation of celestial coordinates; line_7: etc. This complex of operations should be carried out as quickly as possible line_8: not only for a particular target, but also to optimize the following line_9: observations. line_10: Therefore it is likely that a lengthy stay at the StSci and an heavy use of its line_11: image-processing facilities are required. ! question: 8 section: 1 line_1: The program aims at the direct detection of sub-stellar companions of nearby line_2: stars like EPS-ERI and Barnard's, by making use of the diffraction figure of line_3: ST. line_5: A ST roll-blinking technique can be used to improve the detection line_6: capabilities. ! question: 10 section: 1 line_1: VAXES and MIDAS, + STARLINK + ASTRONET, HP1000+ IHAP available to PI and line_2: coworkers ! question: 13 section: 1 line_1: We propose to search for planets around nearby stars with the FOC. line_2: A roll-blinking technique will be used to improve line_3: the detection capabilities. ! !end of general form text general_form_address: lname: BARBIERI fname: CESARE category: PI inst: PADOVA, UNIVERSITY OF ! ! end of general_form_address records fixed_targets: targnum: 13 name_1: VYS65-B name_2: VB10 descr_1: NEARBY ASTROMETRIC BINARY, V=17.4, M7 pos_1: RA = 19H 16M 57.898S +/- 0.05S, pos_2: DEC = +5D 09' 11.4" +/- 0.5" equinox: 2000 pm_or_par: N pos_epoch_bj: B pos_epoch_yr: 1991.40 comment_1: PROPER MOTION HAS BEEN INCLUDED comment_2: IN COORDINATES, THEY ARE NOW comment_3: EQUINOX J2000, EPOCH 1991.4. ! targnum: 18 name_1: GL623 descr_1: NEARBY STAR HIGH VELOCITY,V=10.3 pos_1: RA = 16H 24M 8.450S +/- 0.05S, pos_2: DEC = +48D 21' 15.0" +/- 0.5" equinox: 2000 pm_or_par: N pos_epoch_bj: B pos_epoch_yr: 1991.40 comment_1: PROPER MOTION HAS BEEN INCLUDED comment_2: IN COORDINATES, THEY ARE NOW comment_3: EQUINOX J2000, EPOCH 1991.4. ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 73.000 targname: GL623 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F486N num_exp: 6 time_per_exp: 10M priority: 1 req_1: CYCLE 0; DARK TIME; ! linenum: 74.000 targname: VYS65-B config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F480LP num_exp: 5 time_per_exp: 10M priority: 1 req_1: DARK TIME; req_2: CYCLE 0 ! ! end of exposure logsheet ! No scan data records found