! File: BDRA-3.repeat ! Date: 25-Mar-1995 coverpage: title_1: DYNAMICS AND ENERGY BALANCE IN STELLAR TRANSITION REGIONS title_2: - REPEAT FOR HOPR#120 sci_cat: STELLAR ASTROPHYSICS sci_subcat: COOL STARS proposal_for: RPT/HRS cont_id: 4768 pi_fname: JEFFREY pi_mi: L. pi_lname: LINSKY pi_inst: COLORADO, UNIVERSITY OF pi_country: USA pi_phone: (303)492-7838 keywords_1: STELLAR CHROMOSPHERES, STELLAR TRANSITION REGIONS, F-M keywords_2: DWARF STARS, G-K GIANT STARS, STELLAR ACTIVITY hours_pri: 2.05 num_pri: 1 pi_position: ASTROPHYSICIST ! end of coverpage abstract: line_1: We propose to study the dynamics of stellar transition regions by line_2: measuring the redshifts, indicative of downflows, in lines of C III, line_3: C IV, Si IV, and O IV.The energy balance and heating rates in stellar line_4: chromospheres and transition regions will be derived from an emission line_5: measure analysis of emission line fluxes and densities inferred from line_6: density sensitive line ratios. This proposal is a repeat of a failed line_7: repeat of a Cycle 1 observation of the C IV and Si IV of the line_8: G supergiant Beta Draconis (HOPR 66 and 120). ! end of abstract general_form_proposers: lname: BROWN fname: ALEXANDER inst: COLORADO, UNIVERSITY OF country: USA ! lname: LINSKY fname: JEFFREY mi: L. inst: COLORADO, UNIVERSITY OF country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: We intend to observe 9 stars with the HRS with 2 grating settings each at line_2: low dispersion and 4 grating settings each at moderate dispersion. Two targets line_3: (HR 1099 and Capella) are spectroscopic binary systems and are to be observed line_4: at 1 or 2 phases each. HR 1099 is to be observed at a PHI = 0.75 quadrature. line_5: Capella is to be observed at a conjunction (PHI = 0.0 or 0.5) and at a PHI = line_6: 0.25 quadrature. ! question: 4 section: 1 line_1: Stellar transition regions can only be observed in the ultraviolet. ! question: 5 section: 1 line_1: ! question: 7 section: 1 line_1: We have developed extensive computer programs to analyze these line_2: spectra using emission measure and model atmosphere techniques. ! question: 10 section: 1 line_1: Computer analysis codes and postdoctoral research associates to be line_2: funded by the HST GTO program. ! question: 12 section: 1 line_1: ! question: 13 section: 1 line_1: We propose to study the dynamics of stellar transition regions by line_2: measuring the redshifts, indicative of downflows, in lines of C III, Si III, C line_3: IV, Si IV, and O IV. The energy balance and heating rates in stellar line_4: chromospheres and transition regions will be derived from an emission measure line_5: analysis of emission line fluxes and densities inferred from density sensitive line_6: line ratio. Stars of interest include dwarf stars of spectral type F-M, line_7: active G and K giants, and RS CVn binary systems. ! !end of general form text general_form_address: lname: LINSKY fname: JEFFREY mi: L. category: PI inst: JILA, UNIVERSITY OF COLORADO addr_1: CAMPUS BOX 440 city: BOULDER state: CO zip: 80309 country: USA phone: 303-492-7838 telex: 755842JILA ! ! end of general_form_address records fixed_targets: ! targnum: 7 name_1: HD159181 name_2: BETA-DRA descr_1: A,138 pos_1: RA=17H29M18.01S+/-.01S, pos_2: DEC=+52D20'15.65"+/-.1" equinox: 1950 pm_or_par: Y pos_epoch_bj: B pos_epoch_yr: 1950.00 ra_pm_val: -0.0024 ra_pm_unct: 0.0001 dec_pm_val: 0.0130 dec_pm_unct: 0.0010 an_prlx_val: 0.0130 rv_or_z: V=-20 fluxnum_1: 1 fluxval_1: V=2.79 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: HD159181 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 5S priority: 2 param_1: SEARCH-SIZE=3, param_2: BRIGHT=RETURN req_1: ONBOARD ACQ FOR 2-10; req_2: CYCLE 4/ 1-10; req_3: GROUP 2-10 NO GAP comment_1: STEP TIME = 0.2 SEC ! linenum: 2.000 targname: HD159181 config: HRS opmode: IMAGE aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 51.2S fluxnum_1: 1 priority: 2 param_1: NX=16, param_2: NY=16, param_3: DELTA-X=4, param_4: DELTA-Y=4 comment_1: STEP-TIME=0.2SEC comment_2: IMAGE TO CHECK CENTERING ! linenum: 7.000 targname: WAVE config: HRS opmode: ACCUM aperture: SC2 sp_element: G160M wavelength: 1400.5 num_exp: 1 time_per_exp: 56S priority: 2 param_1: STEP-PATT=5 req_1: CALIB FOR 8 NO SLEW; req_2: SEQ 7-8 NON-INT; ! linenum: 8.000 targname: HD159181 config: ^ opmode: ^ aperture: 2.0 sp_element: G160M wavelength: 1400.5 num_exp: 6 time_per_exp: 300S priority: ^ param_1: ^ ! linenum: 8.500 targname: HD159181 config: HRS opmode: IMAGE aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 51.2S fluxnum_1: 1 priority: 2 param_1: NX=16, param_2: NY=16, param_3: DELTA-X=4, param_4: DELTA-Y=4 comment_1: STEP-TIME=0.2SEC comment_2: IMAGE TO CHECK CENTERING ! linenum: 9.000 targname: WAVE config: HRS opmode: ACCUM aperture: SC2 sp_element: G160M wavelength: 1550 num_exp: 1 time_per_exp: 56S priority: 2 param_1: STEP-PATT=5 req_1: CALIB FOR 10 NO SLEW; req_2: SEQ 9-10 NON-INT; ! linenum: 10.000 targname: HD159181 config: HRS opmode: ACCUM aperture: 2.0 sp_element: G160M wavelength: 1550 num_exp: 3 time_per_exp: 300S priority: 1 param_1: STEP-PATT=5 ! ! end of exposure logsheet ! No scan data records found