! File: 4879C.PROP ! Database: PEPDB ! Date: 23-FEB-1994:07:37:54 coverpage: title_1: NON-RADIATIVE HEATING IN PRE-MAIN SEQUENCE STARS: title_2: CYCLE 3, HIGH PRIORITY sci_cat: STELLAR ASTROPHYSICS sci_subcat: COOL STARS proposal_for: AUG/HRS cont_id: 3534 pi_fname: FREDERICK pi_mi: M. pi_lname: WALTER pi_inst: SUNY, STONY BROOK pi_country: USA pi_phone: (516)632-8232 keywords_1: T TAURI STARS; CHROMOSPHERES; TRANSITION REGIONS hours_pri: 2.78 num_pri: 1 pi_position: ASSISTANT PROFESSOR ! end of coverpage abstract: line_1: We shall obtain UV line fluxes and selected line profiles, line_2: using the HRS, for another pre-main sequence line_3: star. We are studying the atmospheric heating, line_4: dynamics, and density structure of these stars. ! ! end of abstract general_form_proposers: lname: LINSKY fname: JEFFREY mi: L. inst: COLORADO, UNIVERSITY OF country: USA ! lname: WALTER fname: FREDERICK mi: M. inst: SUNY, STONY BROOK country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: All targets will be observed with the HRS through the large aperture. There line_2: will be no explicit background observations, or comb-addition. The spectrum line_3: will be half-stepped. The long integrations have been broken up into repeated line_4: shorter exposures because of the lack of intermediate readout capability. line_5: Specific wavelengths and exposure times are on the exposure log sheets. ! question: 4 section: 1 line_1: Most chromospheric, and all transition region lines, lie in the far UV, and are line_2: inaccessible from the ground. IUE observations have had limited success due to line_3: the faintness of these objects and the resulting low S/N. ! question: 7 section: 1 line_1: The data will reduced using standard spectroscopic analysis routines. The line_2: resulting line fluxes will be used to determine the emission measure line_3: distributions and the atmospheric structure. ! question: 10 section: 1 line_1: SUNY shall supply office space and electricity in support line_2: of the scientific analysis of these data. ! question: 13 section: 1 line_1: This is a continuation of our cycle 2 program to study the line_2: atmospheric structure of pre-main sequence stars, by line_3: obtaining UV line fluxes and selected line profiles of line_4: chromospheric and transition region lines. We will observe line_5: another of our original sample of 6 PMS stars in this cycle. ! !end of general form text general_form_address: lname: WALTER fname: FREDERICK mi: M. category: PI inst: SUNY, STONY BROOK addr_1: ESS DEPARTMENT city: STONY BROOK state: NY country: USA phone: 516-632-8232 ! ! end of general_form_address records fixed_targets: targnum: 3 name_1: RY-TAURI name_2: HDE283571 descr_1: A,156 pos_1: RA=4H21M57.435S+/-0.2S, pos_2: DEC=+28D26'36.01"+/-1", pos_3: PLATE-ID = 0051 equinox: 2000 comment_1: POSITION FROM GSC PLATE 0051; comment_2: GUIDE STAR 1828 129 fluxnum_1: 1 fluxval_1: V=11.0+/-1.8 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.100 sequence_1: DEFINE sequence_2: HRSOBS targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G160M wavelength: 1400 num_exp: 4 time_per_exp: 272S priority: # param_1: STEP-PATT=5 ! linenum: 1.200 sequence_1: DEFINE sequence_2: HRSOBS targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ wavelength: 1550 num_exp: 5 time_per_exp: 272S priority: ^ param_1: ^ ! linenum: 1.220 sequence_1: DEFINE sequence_2: HRSOBS targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ wavelength: 1640 num_exp: 5 time_per_exp: 272S priority: ^ param_1: ^ ! linenum: 1.300 sequence_1: DEFINE sequence_2: HRSOBS targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: G200M wavelength: 1900 num_exp: 5 time_per_exp: 299.2S priority: ^ param_1: ^ ! linenum: 1.500 sequence_1: DEFINE sequence_2: HRSOBS targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: G270M wavelength: 2800 num_exp: 1 time_per_exp: 244.8S priority: ^ param_1: ^ ! linenum: 31.000 targname: RY-TAURI config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-N2 num_exp: 1 time_per_exp: 9S fluxnum_1: 1 priority: 1 param_1: SEARCH-SIZE=3 param_2: BRIGHT=RETURN req_1: ONBOARD ACQ FOR 31.2; req_2: CYCLE 3 /31-31.2 comment_1: STEP-TIME=1.0 ! linenum: 31.200 sequence_1: USE sequence_2: HRSOBS targname: ^ priority: ^ ! ! end of exposure logsheet ! No scan data records found