! Hubble Space Telescope Cycle 5 (1995) Phase II Proposal Template ! $Id: 6081,v 6.1 1995/08/25 15:20:00 pepsa Exp $ ! ! Refer to the HST Phase II Proposal Instructions to fill this out ! ! Anything after a "!" is ignored, and may be deleted ! ! All keywords with multiple entries are comma delimited except the ! Visit_Requirements and Special_Requirements keywords which can be ! delimited with carriage returns or semi-colons, but not commas ! ! For help call your Program Coordinator: Dustin Manning ! Phone: 410 338-4456 , E-mail: manning@stsci.edu ! ! This partially completed template was generated from a Phase I proposal. ! Date generated: Sun Dec 18 19:18:11 EST 1994 ! Proposal_Information ! Section 4 Title: Understanding the Simplest Symbiotic System(s) Proposal_Category: GO Scientific_Category: Hot Stars Cycle: 5 Investigators PI_name: Werner Schmutz PI_Institution: Institute of Astronomy CoI_Name: Urs Muerset CoI_Institution: Institute of Astronomy, ETH, Zuerich Contact: N ! Y or N (designate at most one contact) CoI_Name: Harry Nussbaumer CoI_Institution: Institute of Astronomy, ETH, Zuerich Contact: N CoI_Name: Hans Schild CoI_Institution: Institute of Astronomy, ETH, Zuerich Contact: N CoI_Name: Hans Martin Schmid CoI_Institution: Mount Stromlo and Siding Spring Observatories Contact: N CoI_Name: Manfred Vogel CoI_Institution: Institute of Astronomy, ETH, Zuerich Contact: N CoI_Name: Rolf Walder CoI_Institution: Institute of Astronomy, ETH, Zuerich Contact: N Abstract: ! Free format text (please update) We intend to optain pilot observations of the symbiotic system RW Hya. If the expected features are found we will propose to cover a full orbital cycle of RW Hya. RW Hya is an eclipsing system that is characterized by line profile variations that repeat with orbital phase, in the absence of outbursts, and its brightness in the UV. The GHRS observations of a few selected lines will focus on weak low density intercombination lines that are suspected to be formed in a shock zone between the two stars, on broad line wings, and on P Cygni features thought to be due to a stellar wind from the hot object. These features are too weak to be accessible by IUE. Doppler tomography of the optically thin intercombination lines and eclipse observations of the wind features will allow to locate the formation region in the binary system. The results will be used for a quantitative comparison with sophisticated hydrodynamic calculations. Preliminary results of such calculations suggest that there are 3 emitting regions: the red giant's wind ionized by the hot object, a stellar wind from the hot object, and a wind-wind shock zone located between the stars. Observational constraints are desperately needed to validate our understanding of the hydrodynamics. Questions ! Free format text (please update) Observing_Description: We plan 1 visit of the system RW Hya. The following three lines should be observed with the GHRS grating G160M using the large science aperture: NV 1240, OIV] 1400, and NIV] 1486.5. In addition, with G140L the spectrum from 1150 to 1950 is covered with three wavelength settings. The exposure time per wavelength region with G160M is 15 min and with G140L 5 min. The exposures are obtained in two consecutive orbits. Real_Time_Justification: The visit should be at quadrature, approximately. This means the observation should be obtained around September 15, 1995 (see Visit_Requirements) The next quadrature is in March 1996 (not indicated under Visit_Requirements) Calibration_Justification: ! Move appropriate text from Real_Time_Justification Additional_Comments: Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: HD117970 Alternate_Names: RW-HYA, GSC6718-01146 Description: STAR, SYMBIOTIC STAR, NOVA-LIKE, INTERACTING BINARY, EMISSION LINE STAR, WIND Position: RA = 13H 34M 18.17S +/- 0.04S, DEC = -25D 22' 48.9" +/- 0.5", PLATE-ID = 04LM Equinox: J2000 RV_or_Z: V=13 RA_PM: -0.0025 ! Units are seconds of time per year Dec_PM: 0.014 ! Units are seconds of arc per year Epoch: 1976.417 Annual_Parallax: Flux: V=9.79 +/- 0.23, F-CONT(1400)=15+/-10 E-13, F-LINE(1240)=60+/-60, W-LINE(1240)=2+/-2 ! Include at least V and B-V Comments:Coordinates are from GSC ! This is a template for a single visit containing a single exposure ! Repeat exposure and visit blocks as needed Visits ! Section 6 Visit_Number: 1 Visit_Requirements: ! Section 7.1 ! Uncomment or copy visit level special requirements needed ! Most of these requirements (including ORIENT) will limit scheduling BETWEEN 1-MAR-1996 AND 30-MAR-1996 Exposure_Number: 1 ! Section 6.5 Target_Name: HD117970 Config: HRS Opmode: ACQ Aperture: 2.0 Sp_Element: MIRROR-N1 Number_of_Iterations: 1 Time_Per_Exposure: 18S Special_Requirements: ONBOARD ACQ FOR 2-5 Comments: STEP-TIME=2S, EXPECT 3000 COUNTS IN STEP-TIME, UNCERTAINTY OF EXPECTED COUNTS IS LARGE: 1000 TO 20000 Exposure_Number: 2 ! Section 6.5 Target_Name: HD117970 Config: HRS Opmode: WSCAN Aperture: 2.0 Sp_Element: G140L Wavelength: 1160.5-1876.5 Optional_Parameters: FP-SPLIT=STD, WAVE-STEP=239 Number_of_Iterations: 1 Time_Per_Exposure: 17M Comments: S/N=50 in continuum at 1200, S/N=10 at 1900 Exposure_Number: 3 ! Section 6.5 Target_Name: HD117970 Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140M Wavelength: 1484 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 20M Comments: S/N=25 in continuum Exposure_Number: 4 ! Section 6.5 Target_Name: HD117970 Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140M Wavelength: 1400 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 8M Comments: S/N=15 in continuum Exposure_Number: 5 ! Section 6.5 Target_Name: HD117970 Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140M Wavelength: 1240 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 8M Comments: S/N=15 in continuum Data_Distribution ! Defaults indicated; change if desired Medium: 8MM ! 8MM or 6250BPI or 1600BPI Blocking_Factor: 10 ! 10 or 1 ! Only astronomers with very old 9- ! track tape drives should consider ! a blocking factor of 1 Ship_To: PI_Address ! STSCI or PI_Address or ! PI Address from Phase I is: ! ! ETH Zentrum,CH-8092 Zuerich ! ! Ship_Via: UPS ! UPS (2-day) or OVERNIGHT ! Overnight shipping done at PI expense Recipient_Email: ! Needed if Ship_To: is not PI_Address ! ! Let us know what you think of this template and software! ! 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