0Assigned ID: 201
----- Attempting Submission 1 (Thu Apr 04 15:25:53 GMT 2019) -----
HST Phase I Proposal 201 (cepbin-GO.pdf.apt) successfully submitted.
Receipt: # 201-1Some of the target confirmation charts come out as blank, although we are confidenet of our coordinates, so this is not an issue for us.
In this resubmission we (1) removed the orient constraint on Visit 7 and (2) corrected the ETC number for the G140L exposure in visit 1 and also in the table in the observing explaining the flux normalizations used for the ETC calcuations.-1930791696----- Attempting Submission 1 (Fri Jul 19 21:17:36 GMT 2019) -----
----- Attempting Submission 2 (Tue Jul 23 16:17:11 GMT 2019) -----Cepheid Masses: STIS and Gaia Discovery SpaceAn important HST UV legacy is the measurement of the masses of Cepheids. This proposal adds to this legacy using the combination of inclinations from Gaia, ground-based mass functions and a mass of the companion from STIS G140L spectra. The low resolution ultraviolet STIS spectra target a wavelength region which is particularly temperature sensitive for typical Cepheid companions of spectral types B and A. From the STIS spectra we will accurately infer a temperature and hence a mass for the main sequence companions. The program target list contains ALL the Cepheids with known orbits but without UV spectra. From this exploration, some Cepheid masses will be determined with an accuracy of approximately 10 percent. They can be used to probe the effects of metallicity, core convective overshoot and rotation (internal mixing), some of the most pressing questions in evolutionary calculations. Furthermore, only these STIS spectra will provide the flux of the companions which is crucial to plan further high resolution UV observations and ground-based interferometry.We are looking at Cepheid stars in spectroscopic binaries with the STIS G140L to see if the companion is hot enough to detect in the FUV where the Cepheid itself is essentially invisible. Because many Cepheids are in hiearchical binaries with components at different distances, we are using the 52X2 for all but the brightest target to allow us to also pick up companions up to an arc-second away from the primary.
For visit 1-9, we need to go as deep as possible to look for faint A stars that may be barely visible. For this reason we REQUEST THAT VISITS 1-9 EACH BE SCHEDULED AS THE 1ST FUV MAMA OBSERVATION IN THAT DAY'S SAA FREE BLOCK, as soon as possible after the MAMA HV is ramped up, so as to minimize the FUV detector background.
For V659 Cen we have a good IUE spectrum, but it is not clear if the UV bright source is the close radial velocity companion or a more distant one known at 0.6" distance. Since this source is too bright for G140L + 52X2, we use G140L + FD5NDQ1 with the orient fixed to displace the 0.6" companion in the dispersion direction. This should reveal any UV bright companions. We then also take a short G140L + 52X0.05 spectrm. The flux through the narrow aperture may be somewhat uncertain, but it has better response at short wavelengths and it should be possible to normalize it using the NDQ1 slitless spectrum.
For YZ Car and V659 Cyg, IUE SWP large aperture, low dispersion spectra are available and are used in the FUV ETC calcuations.
To prove that the companions of our other targets are faint enough not to violate bright object limits for the G140L, we are normalizing a Kurucz O5V spectrum to the bluest available flux measurement for each Cepheid. We also include the E(B-V), with most of these values being taken from Ngeow (2012, ApJ, 747, 50), although the E(B-V) for V659 Cen is from Evans et al 2013, AJ, 146, 93.
Target E(B-V) Flux type Flux value ETC# source of flux
GX Car 0.384 FLAM(3729) 1.9e-14 STIS.sp.1370857 ESO archive XSHOOTER spectrum
MW Cyg 0.659 GALEX NUV 19.273 STIS.sp.1364498 Galex
FN Vel 0.558 B 11.84 STIS.sp.1364661 Faint value from light curve at Vizier table J/PAZh/41/27/table2
MU Cep 0.792 U 15.08 STIS.sp.1364701 Faint value from light curve at Vizier table J/AJ/106/2429
VZ Cyg 0.295 GALEX NUV 16.801 STIS.sp.1364505 Galex
BY Cas 0.769 GALEX NUV 18.34 STIS.sp.1364507 Galex
YZ Car 0.372 IUE Spectrum STIS.sp.1364784 swp32514
TX Mon 0.478 sdss u 12.67 STIS.sp.1364762 Vizier table II/341/vphasp
NT Pup 0.570 GALEX NUV 20.52 STIS.ta.1364766 Galex
V659 Cen 0.210 IUE Spectrum STIS.sp.1364946/45 SWP39458
Field BOT info
GX Car
BOT lists target as unsafe. See details above for our worst case ETC estimate.
Also lists S48P070347 at about 3" distance as "unknown". Looking up in GSC2 gives Nplate mag=11.37 (N plate close to Cousin's I band). But the GSC2 slso shows that the N plate magnitude is missing for the Cepheid itself, so this 2nd GSC2 entry may be just the misregistered N plate detection of the Cepheid. The higher resolution 2MASS image shows no evidence for a star at this position and any such should clearly be visible. 2MASS does find a star in this direction at 7" from target with J=13.241, H=12.722, and K=12.651.
MW Cyg - clear when using GALEX
FN Vel
BOT lists target as unsafe. See details above for our worst case ETC estimate. No other safety issues or unknowns
MU Cep
BOT lists target itself as "unknown". See details above for our worst case ETC estimate. No other safety issues or unknowns
VZ Cyg - clear when using GALEX
BY Cas - clear when using GALEX
YZ Car - Target is listed as unsafe. See details above for our worst case ETC estimate.
"Unsafe" fieldobject found at distance of 24". Will need orient constraint to avoid.
This field object is also TYC 8613 1235 1 with BTmag=11.87, and VTmag=11.220
Gaia DR2 5255253233892613760 Gmag=11.66, teff est =5872K
Allowing orients 0-180 and 225-359.9 appears to keep slit awy from object of concern, but BOT doesn't seem to recognize this.
It may not realize that use of D1 position results in a very one-sided aperture footprint.
TX Mon
BOT lists target as unsafe. See details above for our worst case ETC estimate. No other safety issues or unknowns
NT Pup - clear when using GALEX
V659 Cen - clear when using GALEXDr. Nancy Remage Evans has experience in ground-based Cepheid orbits, determining masses from low resolution spectra of main sequence stars, and measuring orbital velocity amplitudes from HST UV spectra, and ultimately combining all these to determine Cepheid masses (for which she has been P.I. on numerous HST proposals). Dr. Richard Anderson is maintaining a program of high accuracy radial velocity observations of Cepheids for orbit determination (Fig. 2b). In addition he is experienced with evolutionary calculations, and in particular the effect of rotation on Cepheid luminosities. Prof. Pierre Kervella, Dr. Alexandre Gallenne, and Dr. Antoine Merand have lead studies of interferometry to determine resolved Cepheid orbits. In addition, Prof. Pierre Kervella led the study of Gaia proper motion anomalies for Cepheids which provided orbital inclinations. Dr. Simon Borgniet and Mr. Boris Trahin work in Prof. Kervella's group. Dr Charles Proffitt is a long-time expert in Cepheid studies, and in addition is a STIS instrument scientist, guiding efforts to maximize the return from observations. Dr. H. Moritz Guenther is experienced with both HST imaging and spectroscopy of Cepheids (Fig. 2a).Stellar Physics6falsefalsetruefalsefalsefalsefalseSUPPORTEDSTARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000B=10.46; F8II, V(range)=8.895-9.686, B(range)=9.762-10.932STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database, and then updated manually in July 2019J2000J2000B=10.71; F8.5-G2Ib; Galex(NUV) = 19.27 abmag, V(Bright)=9.13, AmpV=0.71STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database.This object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000B=11.24; F9II+?, V(range)=9.944-10.553STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database. Updated in July, 2019J2000J2000B=13.5, V(range)=11.879-12.552STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000B=10.2, Sp=G0, Galex(NUV) = 16.80 abmag, V(bright)=8.60, ampV=0.67STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database.This object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000B=11.5, Sp=F5, Galex(NUV)=18.34 abmag, V(bright)=10.19, AmpV=0.37STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database.This object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000B=9.11, Sp=G5, V(range)=8.234-9.044STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000B=11.76, Sp=F6, V(range)=10.652-11.256STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000B=11.0, Galex(NUV)=20.52, V(range)=11.572-12.631STARCEPHEIDCOMPOSITE SPECTRAL TYPEThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000Sp=F6/7Ib+B6V, Galex(NUV)=13.63 abmag, V(bright)=6.47, AmpV=0.27STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/FUV-MAMASpectroscopicNoNoG140L1425The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "01"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:28.0"
: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 713648
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "01"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2993
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)true10ACQ, OIII, V=9.36, E(B-V)=0.384Normalize O5 star using using FLAM(3729)=1.90e-14+E(B-V)=0.659 from XSHOOTER spectrum to prove hottest possible companion is safeThe scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "02"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:30.0"
: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 296144
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "02"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2782
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3180
:pcs-gap 0
)true10TA, G0I, U=12.773, E(B-V)=0.659Normalize O5 star using using U mag at Cepheid minimum + E(B-V)=0.659 to prove hottest possible companion is safeThe scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "03"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:32.0"
: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 1548656
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "03"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2993
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)true10For ACQ normalize OIII filter to minimum V magnitudeTo allow for hottest possible companion, normalize O5 star to minimum B mag = 11.849, with observed E(B-V)=0.558The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "04"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:33.0"
: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 365728
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "04"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2996
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)true10To allow for hottest possible companion, normalize Kurucz O5 to U=15.08 with E(B-V)=0.792The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "05"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:34.0"
: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 365728
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "05"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2844
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3238
:pcs-gap 0
)true10Normalize OII TA to mean U=9.764, and E(B-V)=0.295 with Castelli-Kurucz G0I spectrum. This probably isn't the minimun U value in the light curve, so we'll include a generous extra factor for this OII ACQ.To allow for hottest possible companion, normalize Kurucz O5 to Galex(NUV) = 16.801 with E(B-V) = 0.295The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "06"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:36.0"
: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 365728
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "06"
:obset-id "06"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "06"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 3014
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3411
:pcs-gap 0
)true10Normalize OIII to min V = 10.56To allow for hottest possible companion, normalize O5 star Galex(NUV)=18.34 with E(B-V)=0.769/private/var/folders/c1/kkl4zqqs11g637_3q3f43f2m000400/T/OPVisit4118240050071984244.xmlThe scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "07"
:proposal-version -1
:trans-version "20190514"
:date "23-Jul-2019 12:06:55.0"
: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 504896
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "07"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2994
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)true10Use IUE SWP + LWP to estimate count rate
Note that SWP is probably mostly scattered light and geocoronal emissionThe scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "08"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:38.0"
: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 504896
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "08"
:obset-id "08"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "08"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2744
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)true10TA normalize OII to sdss u = 12.67To allow for hottest possible companion, normalize O5 star sdss u=12.67 with E(B-V)=0.478The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.Please schedule as the first FUV MAMA visit in an SAA free block, as soon as possible as the STIS FUV MAMA voltage has been ramped up, in order to minimize detector background.(Tic-Visit
:proposal-id 15861
:visit-id "09"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:40.0"
: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 296144
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "09"
:obset-id "09"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "09"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2803
:al-overhead-at-end 0
:internal-dur-at-end 630
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3200
:pcs-gap 0
)true10TA OIII V=12.631, E(B-V)=0.57, G0I, STIS.ta.1364766, 7.8sTo allow for hottest possible companion, normalize O5 star Galex(NUV)=20.52 with E(B-V)=0.57The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 15861
:visit-id "10"
:proposal-version -1
:trans-version "20190514"
:date "17-Jul-2019 16:55:41.0"
: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 505440
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15861
:visit-id "10"
:obset-id "10"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15861
:visit-id "10"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 3005
:al-overhead-at-end 92
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3411
:pcs-gap 0
)true10OII ACQ, U(mean)=7.57, adopt 7.7 with E(B-V)=0.21, SpType=G0I, STIS.ta.1364779, 0.04s, saturation 4.5 sUse IUE SWP39458 + LWP18574 to directly calculate count rateUse IUE SWP39458 + LWP18574 to directly calculate count rate