0Assigned ID: 1009
----- Attempting Submission 1 (Fri Apr 07 22:36:39 GMT 2017) -----ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUN
ORBITAL VISIBILITY OVERRUNRevised exposure times in final visit 5 to account for new overheads.53840312----- Attempting Submission 1 (Fri Jul 14 21:09:53 GMT 2017) -----
----- Attempting Submission 2 (Thu May 03 21:25:21 GMT 2018) -----
----- Attempting Submission 3 (Thu Dec 06 21:38:45 GMT 2018) -----Warnings apply only to orbital visibilty overruns in already completed/failed visits.Extreme Wolf-Rayet Galaxies with HST/COS: Understanding CIII] Emission in the Reionization EraThe first deep spectra of reionization-era galaxies have revealed strong UV nebular emission in high-ionization lines. This is in striking contrast to massive galaxies at lower redshifts, where emission from CIII], OIII], HeII, and CIV is rarely seen. These lines will likely be the only probe available for the most distant galaxies JWST will detect; but we are still unprepared to interpret them. Modeling predicts that intense UV nebular emission can only be produced below a tenth solar metallicity. However, recent HST/COS observations of local galaxies suggest that extreme populations of Wolf-Rayet (WR) stars, the hot exposed cores of massive O stars, may be capable of powering CIII] at metallicities as high as a half-solar. If these moderately metal-poor extreme WR galaxies are indeed a viable source of strong CIII] emission, our interpretation of CIII] detections in the reionization era will be dramatically altered; but we presently have sufficient UV coverage for only three examples. Here, we propose HST/COS G160M and G185M observations of an additional seven extreme WR galaxies spanning 0.5 dex in metallicity around half-solar. These observations will constrain the maximum CIII] equivalent width these galaxies can power as a function of metallicity. The moderate resolution gratings will robustly characterize the massive O and WR star populations, allowing us to link the nebular emission directly to the massive stars responsible. These data will provide a stringent test for the population synthesis codes which will be applied to JWST observations. Without this empirical baseline, our understanding of the most distant galaxies JWST finds will be severely limited.We will obtain medium-resolution FUV+NUV COS spectroscopy for seven metal poor star-forming regions in nearby galaxies with prominent optical signatures of Wolf-Rayet stars and nebular HeII emission. The targets were additionally selected to have a compact morphology and SDSS u-band magnitudes brighter than 18.5 AB. ICRS coordinates and u-band magnitudes were derived from SDSS imaging. The galaxies will be acquired using COS/NUV ACQ/IMAGE mode. Motivated by our results from previous COS observations of similar sources, exposure times were computed using the SDSS 3 arcsecond u-band aperture magnitudes assuming an approximately point-like distribution at COS resolution and a flat continuum in F_nu out to the UV. Target acquisiton exposures are computed with target signal to noise ratio of 40; in cases where the ETC indicated that a perfectly point-like flux distribution with this magnitude would yield per-pixel count rates over the bright limit, we utilize Mirror B. After acquisition, each source will be observed with the G160M and G185M gratings. The central wavelength of both gratings has been chosen to place the target emission lines and stellar features into the observable bandpass given the known redshift of each target from SDSS. Exposures will be taken in the TIME-TAG mode with four focal plane positions per setting. Based upon the ETC calculations and our previous COS observations, we expect the total integration time in each grating to deliver S/N>4 per bin of 3 resolution elements, sufficient to measure the equivalent widths of the target nebular and stellar features.Galaxies and the IGM6falsefalsetruefalsefalsefalsefalseSUPPORTEDGALAXYSTAR FORMING REGIONNOJ2000J2000GALAXYSTAR FORMING REGIONNOJ2000J2000GALAXYSTAR FORMING REGIONNOJ2000J2000GALAXYSTAR FORMING REGIONNOJ2000J2000GALAXYSTAR FORMING REGIONNOJ2000J2000GALAXYSTAR FORMING REGIONNOJ2000J2000GALAXYSTAR FORMING REGIONNOJ2000J2000COS/FUVSpectroscopicNoNoG160M1623COS/NUVSpectroscopicNoNoG185M1817COS/NUVSpectroscopicNoNoG185M1850COS/FUVSpectroscopicNoNoG160M1623COS/FUVSpectroscopicNoNoG160M1623COS/NUVSpectroscopicNoNoG185M1817COS/FUVSpectroscopicNoNoG160M1623COS/NUVSpectroscopicNoNoG185M1817COS/FUVSpectroscopicNoNoG160M1623COS/NUVSpectroscopicNoNoG185M1817COS/FUVSpectroscopicNoNoG160M1623COS/NUVSpectroscopicNoNoG185M1817COS/FUVSpectroscopicNoNoG160M1623COS/NUVSpectroscopicNoNoG185M1864The scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode./Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v01.xml154354714200066.0(Tic-Visit
:proposal-id 15185
:visit-id "01"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 13:27:21.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156864
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "01"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2870
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15185
:visit-id "01"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 2977
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)true22The scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode./Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v02.xml1524259632000114.71503106269029(Tic-Visit
:proposal-id 15185
:visit-id "02"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 13:27:24.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156864
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "02"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2876
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3149
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15185
:visit-id "02"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 2985
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3149
:pcs-gap 0
)true22The scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode./Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v03.xml1525030890000107.69854236799802(Tic-Visit
:proposal-id 15185
:visit-id "03"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 13:27:26.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156864
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "03"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2884
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3156
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15185
:visit-id "03"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 2993
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3156
:pcs-gap 0
)true22The scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode./Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v04.xml1525311597000124.66820488044777(Tic-Visit
:proposal-id 15185
:visit-id "04"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 13:27:28.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156864
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "04"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2870
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15185
:visit-id "04"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 2977
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)true22The scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode./Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v05.xml(Tic-Visit
:proposal-id 15185
:visit-id "05"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 11:34:52.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156864
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "05"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2846
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3180
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15185
:visit-id "05"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 2877
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3180
:pcs-gap 0
)true20The scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode./Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v06.xml1534059390000103.01417217754852(Tic-Visit
:proposal-id 15185
:visit-id "06"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 13:27:31.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156864
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "06"
:obset-id "06"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "06"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2872
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3145
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15185
:visit-id "06"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 2981
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3145
:pcs-gap 0
)true22The scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode./Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v07.xml1529494122000125.7045716383509(Tic-Visit
:proposal-id 15185
:visit-id "07"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 13:27:35.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156864
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "07"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2868
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15185
:visit-id "07"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 2977
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)true22The scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode./Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v09.xmlRepeat of Visit 071533827284000102.81037242465243(Tic-Visit
:proposal-id 15185
:visit-id "09"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 13:27:38.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156864
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "09"
:obset-id "09"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "09"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2868
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15185
:visit-id "09"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 2977
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)true22/Users/peter/Documents/hstc25_phaseiiresubmit/OP-cache/hstc25_phaseii-v08.xmlThe scheduling data was generated by CASM 26.2.2.CASM was run in Phase II mode.1527393739000107.69794604417979(Tic-Visit
:proposal-id 15185
:visit-id "08"
:proposal-version -1
:trans-version "20181130"
:date "06-Dec-2018 13:27:39.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 52416
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15185
:visit-id "08"
:obset-id "08"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15185
:visit-id "08"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2884
:al-overhead-at-end 0
:internal-dur-at-end 331
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3156
:pcs-gap 0
)true11