0 Assigned ID: 487 ----- Attempting Submission 1 (Fri Apr 08 14:09:12 GMT 2016) ----- HST Phase I Proposal 487 (uvbcep.apt) successfully submitted. Receipt: # 487-1 1. For the first target, the ETC gives warning Buffer time 30.0356 is less than minimum 99 seconds. 2. There are timing requirements: visits 1-6 shall be executed withing 1.1 day. Visits 7-12 shall be executed within 20 hours. 1555987985 ----- Attempting Submission 1 (Fri Jul 15 13:32:17 GMT 2016) ----- HST Phase II Proposal 14657 (uvbcep24.apt) successfully submitted. Receipt: # 14657-1 ----- Attempting Submission 2 (Mon Jul 18 10:08:38 GMT 2016) ----- The wind variability in oscillating massive stars The majority of massive stars have the spectral type B and pulsate. Their interiors and photospheres have been extensively studied over decades by means of high-precision photometry and spectroscopy in the optical. However, very little is known about the physics of their stellar winds, and in particular about the connections between stellar pulsations and winds. We propose to close this gap and obtain monitoring of important UV lines formed in wind of two representative massive stars over their pulsation period. This proposal takes advantage of the unique capabilities of HST/STIS for UV spectroscopy. We focus on two well studied beta Cephei variables that have similar stellar parameters, but different magnetic field strengths and pulsational behavior. From spectral monitoring of beta CMa and xi1 CMa we will study how wind ionization, mass flux, and wind velocity change over the stellar pulsation cycle. We already secured complementary observations in X-ray and optical. Unexpectedly, we discovered that one target, xi1 CMa, pulsates in X-rays in phase with the optical oscillations. Our state-of-the-art non-LTE expanding stellar atmospheres and 3-D stellar wind simulations will allow thorough exploitation of the STIS spectra. As a result, we will empirically establish how changes in stellar effective temperature and radius lead to the changes in the stellar wind properties. This will provide new and important insights for the theoretical understanding of stellar wind driving in massive stars. We observe two pulsating B-type stars. For each target, the goal is to obtain the STIS spectra at the maximum of the optical ligh curve, and at the minimum of the light curve. Each HST orbit covers about 0.2 in phase. We will observe three maxima and three minima for each target, i.e. 6 observations per target. As we have 2 targets, all togther this is 12 orbits. The pulsation periods of our targets are ~5hr and ~6 hr. If possible, the six observations should be best done consecutively, using the following scheme: phase 1, phase 2, phase 1, phase 2 , phase 1, phase 2, where phase 1 corresponds to either the maximum (phase = 0.1 - 0.3) or minimum light (phase = 0.6 to 0.8) and phase 2 corresponds to either the minimum or the maximum light, i.e., the opposite of phase 1. This means that once the first HST observation is executed, there must be a gap of ~2.5 hr, before the next HST orbit. While the observations are phase constrained, the date of the observation of the first phase is unimportant. Stellar Physics 6 false true false false false false SUPPORTED STAR B0-B2 III-I NO J2000 J2000 STAR B0-B2 V-IV NO J2000 J2000 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.100/0.300. Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 1.1 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit3285342854792070499.xml (Tic-Visit :proposal-id 14657 :visit-id "01" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:32.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2880 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) false 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.600/0.800. Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 1.1 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit4384315381669563547.xml (Tic-Visit :proposal-id 14657 :visit-id "02" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:34.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2880 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.100/0.300. Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 1.1 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit6126214322595610465.xml (Tic-Visit :proposal-id 14657 :visit-id "03" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:36.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2880 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.600/0.800. Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 1.1 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit6354317546129781829.xml (Tic-Visit :proposal-id 14657 :visit-id "04" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:37.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2880 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.100/0.300. Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 1.1 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit7679214319101108192.xml (Tic-Visit :proposal-id 14657 :visit-id "05" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:39.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2880 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.600/0.800. Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 1.1 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit243880981523684047.xml (Tic-Visit :proposal-id 14657 :visit-id "06" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:40.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2880 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.100/0.300. Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.8 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit3042530980106809582.xml (Tic-Visit :proposal-id 14657 :visit-id "07" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:42.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) false 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.600/0.800. Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.8 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit3124576852218516946.xml (Tic-Visit :proposal-id 14657 :visit-id "08" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:43.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.100/0.300. Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.8 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit7079740199675924343.xml (Tic-Visit :proposal-id 14657 :visit-id "09" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:45.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.600/0.800. Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.8 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit43158745659047374.xml (Tic-Visit :proposal-id 14657 :visit-id "10" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:47.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.100/0.300. Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.8 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit1613983232162290657.xml (Tic-Visit :proposal-id 14657 :visit-id "11" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:48.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "11" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) true 1 0 Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.600/0.800. Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.8 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/z3/xy_g1v_s5fz9yrhzb8thz4cr0001qc/T/OPVisit7468412068789665014.xml (Tic-Visit :proposal-id 14657 :visit-id "12" :proposal-version -1 :trans-version "20170109" :date "30-Jan-2017 14:06:49.0" :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 505008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14657 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14657 :visit-id "12" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 0 :internal-dur-at-end 450 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) true 1 0