!TRANSFORMATION VERSION DEVELOP 79.0 !Converted RPS2 File /blofeld/data1/blacker/5460.new !GENERATED 6-29-1995 14:38:52 !PROPOSAL 5460 VERSION C !TRANSFORMED USING PROCON ! Command line parameters: :run-trans 5460 C :phase :procon :input "/blofeld/data1/blacker/" :output "/blofeld/data1/blacker/" ! Remove this line to allow this file to be processed Proposal_Information Title: CONSTRAINTS ON MASSIVE STAR EVOLUTION FROM CARBON AND OXYGEN ABUNDANCES IN LMC WC/WO STARS: CYCLE4HIGH Proposal_Category: GO Scientific_Category: HOT STARS,MASSIVE STARS Cycle: 4 Investigators PI_name: HILLIER, JOHN PI_Institution: UNIVERSITY OF PITTSBURGH Questions Observing_Description: Real_Time_Justification: Calibration_Justification: Additional_Comments: Abstract: High signal-to-noise UV FOS spectra of a sample of WC-type Wolf-Rayet stars in the LMC will be obtained to determine C/He and O/C abundance ratios. These abundance ratios will provide urgently required constraints on the He-burning stage of the evolution of massive stars. The surface C/He and O/C abundance ratios in WC stars are influenced by mass loss, convection and overshooting, and the (uncertain) 12C(ALPHA,GAMMA)16O reaction rate. The spectra will be analyzed using sophisticated non-LTE radiative transfer codes which allow for spherical extension and stellar winds, and which incorporate the latest atomic data. Our quantitative analysis will also allow a determination of fundamental stellar parameters (eg Rstar, Teff), abundances of species such as Fe and Si, and accurate mass loss rates. These, and the C and O abundance determinations, will allow much tighter constraints to be placed on the evolution of massive stars. Starburst galaxies are currently an active area of research. Massive stars, including W-R stars, are seen to be playing a key role in the dynamics and evolution of these systems. It is imperative that we understand the evolution and properties of massive stars in the galaxy and LMC (where they are amenable to detailed spectroscopic studies) if we are to make reliable inferences concerning star formation rates, nucleosynthesis yields, and initial mass functions etc in starburst systems. Fixed_Targets Target_Number: 1 Target_Name: BR93 Alternate_Names: FD73,SAND 2 Description: EXT-STAR,WOLF RAYET, Position: RA=5H 39M 33.905S +/- 0.033S, DEC= -68D 44' 9.44" +/- 0.50" Equinox: J2000 Epoch: Rv_or_z: V = 280.0 RA_PM: 0.0 Dec_PM: 0.0 Annual_Parallax: 0.0 Flux: TYPE=W04, V = 15.4 +/- 0.1, B-V = 0.0 +/- 10.0 E-1, E(B-V) = 4.0 +/- 5.0 E-2, F-CONT(5560.0) = 10.0 +/- 2.0 E-16, F-CONT(2225.0) = 6.0 +/- 2.0 E-15, F-CONT(1690.0) = 12.0 +/- 1.0 E-15, F-CONT(1285.0) = 22.0 +/- 2.0 E-15 Comments: V=16.5 +/- 0.1 E(B-V)=0.03 ! WARNING: This target specifies close companion acquisition. ! This is an old capability, not supported in RPS2. Target_Number: 2 Target_Name: BR93-FIX Alternate_Names: FD73,SAND 2 Description: EXT-STAR,WOLF RAYET, Position: RA=5H 39M 34.47S +/- 0.033S, DEC= -68D 44' 9.5" +/- 0.50", PLATE-ID=06B0 Equinox: J2000 Epoch: Rv_or_z: V = 280.0 RA_PM: 0.0 Dec_PM: 0.0 Annual_Parallax: 0.0 Flux: TYPE=W04, V = 15.4 +/- 0.1, B-V = 0.0 +/- 10.0 E-1, E(B-V) = 4.0 +/- 5.0 E-2, F-CONT(5560.0) = 10.0 +/- 2.0 E-16, F-CONT(2225.0) = 6.0 +/- 2.0 E-15, F-CONT(1690.0) = 12.0 +/- 1.0 E-15, F-CONT(1285.0) = 22.0 +/- 2.0 E-15 Comments: V=16.5 +/- 0.1 E(B-V)=0.03 ! WARNING: This target specifies close companion acquisition. ! This is an old capability, not supported in RPS2. Target_Number: 11 Target_Name: HD32125 Alternate_Names: WS3,BR37 Description: EXT-STAR,WOLF RAYET, Position: RA=4H 56M 11.164S +/- 0.033S, DEC= -66D 17' 33.24" +/- 0.50", PLATE-ID=06AF Equinox: J2000 Epoch: Rv_or_z: V = 280.0 RA_PM: 0.0 Dec_PM: 0.0 Annual_Parallax: 0.0 Flux: TYPE=WC4, V = 14.33 +/- 0.1, B-V = 4.0 +/- 5.0 E-2, E(B-V) = 10.0 +/- 5.0 E-2, F-CONT(5560.0) = 25.0 +/- 3.0 E-16, F-CONT(2225.0) = 3.2 +/- 0.3 E-14, F-CONT(1690.0) = 6.4 +/- 0.5 E-14, F-CONT(1285.0) = 16.0 +/- 2.0 E-14 Comments: V=15.0 +/- 0.1 E(B-V)=0.08 Target_Number: 21 Target_Name: HD269888 Alternate_Names: WS42,BR74 Description: EXT-STAR,WOLF RAYET, Position: RA=5H 37M 44.796S +/- 0.033S, DEC= -69D 14' 25.61" +/- 0.50", PLATE-ID=05ZW Equinox: J2000 Epoch: Rv_or_z: V = 280.0 RA_PM: 0.0 Dec_PM: 0.0 Annual_Parallax: 0.0 Flux: TYPE=WC4, V = 14.78 +/- 0.1, B-V = 0.0 +/- 5.0 E-2, E(B-V) = 20.0 +/- 10.0 E-2, F-CONT(5560.0) = 16.0 +/- 2.0 E-16, F-CONT(2225.0) = 10.0 +/- 3.0 E-15, F-CONT(1690.0) = 26.0 +/- 5.0 E-15, F-CONT(1285.0) = 5.1 +/- 1.0 E-14 Comments: V=15.69 E(B-V)=0.16 Solar_System_Targets Generic_Targets Scan_Data Visits Visit_Number: 01 Visit_Requirements: On_Hold_Comments: ! From Line 11 Exposure_number: 10 Target_Name: BR93 Config: FOS/BL Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: BRIGHT=33000.0 Number_of_iterations:1 Time_Per_Exposure: 2.2S Special_Requirements:ONBOARD ACQ FOR 20 Comments: ! From Line 12 Exposure_number: 20 Target_Name: BR93 Config: FOS/BL Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SCAN-STEP-Y=.172, SEARCH-SIZE-Y=5, SEARCH-SIZE-X=5, SCAN-STEP-X=.172 Number_of_iterations:1 Time_Per_Exposure: 3S Special_Requirements:ONBOARD ACQ FOR 30 Comments: ! From Line 12.1 Exposure_number: 30 Target_Name: BR93 Config: FOS/BL Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SCAN-STEP-Y=.052, SEARCH-SIZE-Y=5, SEARCH-SIZE-X=5, SCAN-STEP-X=.052 Number_of_iterations:1 Time_Per_Exposure: 3S Special_Requirements:ONBOARD ACQ FOR 40 Comments: ! From Line 13 Exposure_number: 40 Target_Name: BR93 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G130H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 133M Special_Requirements: Comments: ! From Line 14 Exposure_number: 50 Target_Name: BR93 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 63M Special_Requirements: Comments: ! From Line 15 Exposure_number: 60 Target_Name: BR93 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 20M Special_Requirements: Comments: Visit_Number: 02 Visit_Requirements: On_Hold_Comments: ! From Line 21 Exposure_number: 10 Target_Name: HD32125 Config: FOS/BL Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: BRIGHT=45000, FAINT=870 Number_of_iterations:1 Time_Per_Exposure: 0.66S Special_Requirements:ONBOARD ACQ FOR 20 Comments: ! From Line 22 Exposure_number: 20 Target_Name: HD32125 Config: FOS/BL Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SCAN-STEP-Y=.172, SEARCH-SIZE-Y=5, SEARCH-SIZE-X=5, SCAN-STEP-X=.172 Number_of_iterations:1 Time_Per_Exposure: 1S Special_Requirements:ONBOARD ACQ FOR 30 Comments: ! From Line 22.1 Exposure_number: 30 Target_Name: HD32125 Config: FOS/BL Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SCAN-STEP-Y=.052, SEARCH-SIZE-Y=5, SEARCH-SIZE-X=5, SCAN-STEP-X=.052 Number_of_iterations:1 Time_Per_Exposure: 1S Special_Requirements:ONBOARD ACQ FOR 40 Comments: ! From Line 23 Exposure_number: 40 Target_Name: HD32125 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G130H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 25M Special_Requirements: Comments: ! From Line 24 Exposure_number: 50 Target_Name: HD32125 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 650S Special_Requirements: Comments: ! From Line 25 Exposure_number: 60 Target_Name: HD32125 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 250S Special_Requirements: Comments: Visit_Number: 03 Visit_Requirements: On_Hold_Comments: ! From Line 31 Exposure_number: 10 Target_Name: HD269888 Config: FOS/BL Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: BRIGHT=33000.0 Number_of_iterations:1 Time_Per_Exposure: 1S Special_Requirements:ONBOARD ACQ FOR 20 Comments: ! From Line 32 Exposure_number: 20 Target_Name: HD269888 Config: FOS/BL Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SCAN-STEP-Y=.172, SEARCH-SIZE-Y=5, SEARCH-SIZE-X=5, SCAN-STEP-X=.172 Number_of_iterations:1 Time_Per_Exposure: 2S Special_Requirements:ONBOARD ACQ FOR 30 Comments: ! From Line 32.1 Exposure_number: 30 Target_Name: HD269888 Config: FOS/BL Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SCAN-STEP-Y=.052, SEARCH-SIZE-Y=5, SEARCH-SIZE-X=5, SCAN-STEP-X=.052 Number_of_iterations:1 Time_Per_Exposure: 2S Special_Requirements:ONBOARD ACQ FOR 40 Comments: ! From Line 33 Exposure_number: 40 Target_Name: HD269888 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G130H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 1H Special_Requirements: Comments: ! From Line 34 Exposure_number: 50 Target_Name: HD269888 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 23M Special_Requirements: Comments: ! From Line 35 Exposure_number: 60 Target_Name: HD269888 Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 13M Special_Requirements: Comments: Visit_Number: 04 Visit_Requirements: On_Hold_Comments: ! From Line 11 Exposure_number: 10 Target_Name: BR93-FIX Config: FOS/BL Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: BRIGHT=33000.0 Number_of_iterations:1 Time_Per_Exposure: 2.2S Special_Requirements:ONBOARD ACQ FOR 20 Comments: ! From Line 12 Exposure_number: 20 Target_Name: BR93-FIX Config: FOS/BL Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SCAN-STEP-Y=.172, SEARCH-SIZE-Y=5, SEARCH-SIZE-X=5, SCAN-STEP-X=.172 Number_of_iterations:1 Time_Per_Exposure: 3S Special_Requirements:ONBOARD ACQ FOR 30 Comments: ! From Line 12.1 Exposure_number: 30 Target_Name: BR93-FIX Config: FOS/BL Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SCAN-STEP-Y=.052, SEARCH-SIZE-Y=5, SEARCH-SIZE-X=5, SCAN-STEP-X=.052 Number_of_iterations:1 Time_Per_Exposure: 3S Special_Requirements:ONBOARD ACQ FOR 40 Comments: ! From Line 13 Exposure_number: 40 Target_Name: BR93-FIX Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G130H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 133M Special_Requirements: Comments: ! From Line 14 Exposure_number: 50 Target_Name: BR93-FIX Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 63M Special_Requirements: Comments: ! From Line 15 Exposure_number: 60 Target_Name: BR93-FIX Config: FOS/BL Opmode: ACCUM Aperture: 0.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_iterations:1 Time_Per_Exposure: 20M Special_Requirements: Comments: Data_Distribution Medium: 8MM Blocking_Factor: 10 Ship_To: PI_Address Ship_Via: UPS Recipient_Email: