12218( 2) - 07-Jul-2010 18:31:03 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12218 Version: 2 Check-in Time: 07-Jul-2010 18:31:03 STScI Edit Number: 0 Title Toward Resolving the Mass loss Discrepancy ------------------------------------------------------------------------------------ Type Cycle GO 18 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Derck L. Massa Space Telescope Science Institute CoI: Dr. Daniel J. Lennon Space Telescope Science Institute - ESA N CoI: Dr. Raman K. Prinja University College London N CoI: Dr. A.W. Fullerton The Johns Hopkins University N ------------------------------------------------------------------------------------ Abstract Recent observations have raised serious questions about the mass loss rates of O stars, suggesting that they may be up to 10 times smaller than previously believed. Such a severe revision in the mass loss rates would have wide ranging astrophysical consequences, and has been termed the "mass loss discrepancy". We propose new HST observations aimed at addressing this problem. The new data will be combined with FUSE and existing HST spectra, Spitzer photometry, and optical spectra to create a data set of lasting value. Our proposed analysis will highlight how different wind diagnostics in the same star can yield different results, thereby providing clues to the origin of the discrepancies. ------------------------------------------------------------------------------------ Observations Description ------------------------ All observations are strightforward, with no safety issues. Each target is alotted one orbit for acquisition and obtaining an E140M spectrum. The following lists the ETC numbers used to determine the ACQs and exposures. ACQ Spectrum (S/N in 45 min @1600A) Sk-65 47 O4 If* 1 s STIS.A329308 STIS.A329318 15.2 Sk-67 105 O4 f 1 s STIS.A329309 STIS.A329322 15.2 Sk-67 111 O6: Iafpe 1 s STIS.A329311 STIS.A329323 14.3 Sk-70 115 O6.5 Iaf 1 s STIS.A329312 STIS.A329324 12.3 Sk-69 50 O7 If 1 s STIS.A329313 STIS.A329326 8.7 Sk-67 168 O8 Iaf 1 s STIS.A329314 STIS.A329327 15.3 Sk-71 41 O8.5 I 2 s STIS.A329316 STIS.A329328 6.3 Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- 12218( 2) - 07-Jul-2010 18:31:03 - [ 2] ------------------------------------------------------------------------------------ 12218( 2) - 07-Jul-2010 18:31:03 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-65D47 STAR, GIANT O RA=05H20M54.7200S +/- 0.2", J2000 V = 12.51 DEC=-65D27'17.90" +/- 0.2" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-67D105 STAR, GIANT O RA=05H26M6.1900S +/- 0.2", J2000 V = 12.42 DEC=-67D10'56.80" +/- 0.2" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 3 SK-67D111 STAR, GIANT O RA=05H26M48.0800S +/- 0.2", J2000 V = 12.57 DEC=-67D29'29.80" +/- 0.2" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 4 SK-70D115 STAR, GIANT O RA=05H48M49.6540S +/- 0.2", J2000 V = 12.24 DEC=-70D03'57.82" +/- 0.2" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 5 SK-69D50 STAR, GIANT O RA=04H57M15.1900S +/- 0.2", J2000 V = 13.345 DEC=-69D20'20.40" +/- 0.2" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 6 SK-67D168 STAR, GIANT O RA=05H31M52.1100S +/- 0.2", J2000 V = 12.08 DEC=-67D34'20.70" +/- 0.2" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 7 SK-71D41 STAR, GIANT O RA=05H30M40.1700S +/- 0.2", J2000 V = 12.83 DEC=-71D05'37.00" +/- 0.2" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 12218( 2) - 07-Jul-2010 18:31:03 - [ 4] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-65D47 STIS/CCD ACQ F28X50LP MIRROR 1 2 S Comments: STIS.A329308 ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-65D47 STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 2500 S -MAMA see below Comments: STIS.A329318 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK-65D47 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SK-65D47 2 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 1 2835.0 S -MAMA 12218( 2) - 07-Jul-2010 18:31:03 - [ 5] Visit: 02 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-67D105 STIS/CCD ACQ F28X50LP MIRROR 1 1 S Comments: STIS.A329309 ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-67D105 STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 2500 S -MAMA see below Comments: STIS.A329322 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK-67D105 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SK-67D105 2 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 1 2839.0 S -MAMA 12218( 2) - 07-Jul-2010 18:31:03 - [ 6] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-67D111 STIS/CCD ACQ F28X50LP MIRROR 1 1 S Comments: STIS.A329311 ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-67D111 STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 2500 S -MAMA see below Comments: STIS.A329323 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK-67D111 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SK-67D111 2 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 1 2839.0 S -MAMA 12218( 2) - 07-Jul-2010 18:31:03 - [ 7] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-70D115 STIS/CCD ACQ F28X50LP MIRROR 1 1 S Comments: STIS.A329312 ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-70D115 STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 2500 S -MAMA see below Comments: STIS.A329324 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK-70D115 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SK-70D115 2 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 1 2885.0 S -MAMA 12218( 2) - 07-Jul-2010 18:31:03 - [ 8] Visit: 05 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-69D50 STIS/CCD ACQ F28X50LP MIRROR 1 1 S Comments: STIS.A329313 ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-69D50 STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 2500 S -MAMA see below Comments: STIS.A329326 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK-69D50 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SK-69D50 2 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 1 2839.0 S -MAMA 12218( 2) - 07-Jul-2010 18:31:03 - [ 9] Visit: 06 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-67D168 STIS/CCD ACQ F28X50LP MIRROR 1 1 S Comments: STIS.A329314 ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-67D168 STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 2500 S -MAMA see below Comments: STIS.A329327 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK-67D168 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SK-67D168 2 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 1 2839.0 S -MAMA 12218( 2) - 07-Jul-2010 18:31:03 - [ 10] Visit: 07 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-71D41 STIS/CCD ACQ F28X50LP MIRROR 1 2 S Comments: STIS.A329316 ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-71D41 STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 2500 S -MAMA see below Comments: STIS.A329328 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK-71D41 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SK-71D41 2 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 1 2881.0 S -MAMA 12218( 2) - 07-Jul-2010 18:31:03 - [ 11] Summary Form for Proposal 12218 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.2X0.2, F28X50LP ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements E140M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names SK-65D47, SK-67D105, SK-67D111, SK-67D168, SK-69D50, SK-70D115, SK-71D41 ------------------------------------------------------------------------------------------------------------------------------------