Assigned ID: 422
----- Attempting Submission 1 (Fri Feb 26 17:06:02 GMT 2010) -----
----- Attempting Submission 1 (Wed Jul 07 18:17:29 GMT 2010) -----
Toward Resolving the Mass loss Discrepancy
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.
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
HOT STARS
12
false
0.0
0.0
false
false
false
false
false
false
SUPPORTED
STAR
GIANT O
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
05 20 54.7200
-65 27 17.90
J2000
STAR
GIANT O
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
05 26 6.1900
-67 10 56.80
J2000
STAR
GIANT O
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
05 26 48.2200
-67 29 30.10
J2000
STAR
GIANT O
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
05 48 49.6540
-70 03 57.82
J2000
STAR
GIANT O
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
04 57 15.1900
-69 20 20.40
J2000
STAR
GIANT O
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
05 31 52.1200
-67 34 20.80
J2000
STAR
GIANT O
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
05 30 40.2400
-71 05 37.30
J2000
STIS/FUV-MAMA
Spectroscopic
No
No
E140M
1425
STIS/FUV-MAMA
Spectroscopic
No
No
E140M
1425
STIS/FUV-MAMA
Spectroscopic
No
No
E140M
1425
STIS/FUV-MAMA
Spectroscopic
No
No
E140M
1425
STIS/FUV-MAMA
Spectroscopic
No
No
E140M
1425
STIS/FUV-MAMA
Spectroscopic
No
No
E140M
1425
STIS/FUV-MAMA
Spectroscopic
No
No
E140M
1425
/Users/massa/emachines/latex/proposals/hst/hst10/LMC_PV/OP-cache/12218-v01.xml
The scheduling data was generated by CASM 18.3.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 12218
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:number-of-orbits 1
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:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3599
:pcs-gap 0
)
true
1
0
STIS.A329308
STIS.A329318
/Users/massa/emachines/latex/proposals/hst/hst10/LMC_PV/OP-cache/12218-v02.xml
The scheduling data was generated by CASM 18.3.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 12218
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:date "07-Jul-2010 14:15:23.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
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:number-of-orbits 1
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:si-bright-earth-limb-angle 20.0
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)
(Tic-Obset
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(Tic-Orbit
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true
1
0
STIS.A329309
STIS.A329322
/Users/massa/emachines/latex/proposals/hst/hst10/LMC_PV/OP-cache/12218-v03.xml
The scheduling data was generated by CASM 18.3.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 12218
:visit-id "03"
:proposal-version -1
:trans-version "20100505"
:date "07-Jul-2010 14:15:24.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
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:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 104848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12218
:visit-id "03"
:obset-id "03"
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(Tic-Orbit
:proposal-id 12218
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:orbit-number 1
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:si-vis-utilization 3266
:al-overhead-at-end 196
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:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
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true
1
0
STIS.A329311
STIS.A329323
/Users/massa/emachines/latex/proposals/hst/hst10/LMC_PV/OP-cache/12218-v04.xml
The scheduling data was generated by CASM 18.3.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 12218
:visit-id "04"
:proposal-version -1
:trans-version "20100505"
:date "07-Jul-2010 14:15:25.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 104848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12218
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12218
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:orbit-number 1
:pcs-time 333
:si-vis-utilization 3312
:al-overhead-at-end 196
:internal-dur-at-end 321
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3645
:pcs-gap 0
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true
1
0
STIS.A329312
STIS.A329324
/Users/massa/emachines/latex/proposals/hst/hst10/LMC_PV/OP-cache/12218-v05.xml
The scheduling data was generated by CASM 18.3.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 12218
:visit-id "05"
:proposal-version -1
:trans-version "20100505"
:date "07-Jul-2010 14:15:26.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 104848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12218
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12218
:visit-id "05"
:orbit-number 1
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:si-vis-utilization 3266
:al-overhead-at-end 196
:internal-dur-at-end 321
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3599
:pcs-gap 0
)
true
1
0
STIS.A329313
STIS.A329326
/Users/massa/emachines/latex/proposals/hst/hst10/LMC_PV/OP-cache/12218-v06.xml
The scheduling data was generated by CASM 18.3.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 12218
:visit-id "06"
:proposal-version -1
:trans-version "20100505"
:date "07-Jul-2010 14:15:27.0"
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:number-of-orbits 1
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(Tic-Obset
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(Tic-Orbit
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:orbit-number 1
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:si-vis-utilization 3266
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:internal-dur-at-end 321
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
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true
1
0
STIS.A329314
STIS.A329327
/Users/massa/emachines/latex/proposals/hst/hst10/LMC_PV/OP-cache/12218-v07.xml
The scheduling data was generated by CASM 18.3.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 12218
:visit-id "07"
:proposal-version -1
:trans-version "20100505"
:date "07-Jul-2010 14:15:27.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
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:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 104848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12218
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(Tic-Orbit
:proposal-id 12218
:visit-id "07"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3312
:al-overhead-at-end 196
:internal-dur-at-end 321
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3645
:pcs-gap 0
)
true
1
0
STIS.A329316
STIS.A329328