Unsupported characters were found in Abstract and replaced with |*| Science Keywords: Select from 2 to 5 items. Science Keywords is a required field. Wavelength is a required field. Please specify your scheduling constraints or 'No Constraints' on all Observation forms. 0 Assigned ID: 1190 ----- Attempting Submission 1 (Sun Jan 05 19:07:17 GMT 2020) ----- Joint XMM-HST Adjusted the phase constrain and schedulability following discussions related to scheduling the observation 737110513 ----- Attempting Submission 1 (Thu Feb 20 18:43:54 GMT 2020) ----- HST Phase II Proposal 16065 successfully submitted. Receipt: # 16065-1 ----- Attempting Submission 2 (Thu Apr 09 10:46:01 GMT 2020) ----- The irradiation and atmospheric escape of the brightest gaseous super-Earth The recent discovery of Pi Men c, a super-Earth transiting an outstandingly bright nearby star (V = 5.67; 18 pc), presents an unrivalled opportunity to study the atmosphere of a small planet just above the radius-period valley. While the expected transit signature of the atmosphere in the optical/infrared is very small, the high-energy environment of the planet is thought to be favourable for large transit absorption features in the far-ultraviolet due to an escaping, extended upper atmosphere. Using simultaneous XMM-Newton and HST observations, we propose to perform both a full reconstruction of the differential emission measure in order to characterise the high-energy irradiation impingent on the planet, and a sensitive search for evaporation signals due to these photons. We will observe the FUV transit of the brightest (V = 5.7), gaseous, transiting super-Earth: Pi Men c. The host star is a G0 dwarf slightly larger than the Sun. Our primary aim with these HST observations is to probe material evaporating from the planet's atmosphere by measuring absorption in lines associated with H, C, and O. We will use the STIS instrument with the echelle grating E140H. Our science goals in observing a planet transit with sufficient out of transit baseline necessitate all 5 orbits awarded occuring consecutively in a single visit. HST has previously observed this target before (proposal ids 14633 and 15699), but not with this specific setup. These orbits were awarded as part of a joint proposal from XMM-Newton cycle AO-19, and the observations should be conducted contemporaneously with the XMM-Newton observations, which also aim to cover the transit of the planet at both X-ray and near-UV wavelengths. Putting the data from the two spacecraft together should also result in a precise measurement of the high-energy environment in which the planet resides, a key input to models of photoevaporation. Exoplanets and Exoplanet Formation 6 false false false false false false false SUPPORTED STAR G V-IV HD39091 J2000 J2000 STIS/FUV-MAMA Spectroscopic No No E140H The scheduling data was generated by CASM 28.0. CASM was run in Phase II mode. 1607282428000 349.8146663031397 (Tic-Visit :proposal-id 16065 :visit-id "01" :proposal-version -1 :trans-version "20191203" :date "09-Apr-2020 11:39:20.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 1064288 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16065 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2877 :al-overhead-at-end 0 :internal-dur-at-end 263 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2968 :al-overhead-at-end 0 :internal-dur-at-end 263 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2968 :al-overhead-at-end 0 :internal-dur-at-end 263 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2968 :al-overhead-at-end 0 :internal-dur-at-end 263 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2968 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) false 5 0 Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. (Tic-Visit :proposal-id 16065 :visit-id "01" :proposal-version -1 :trans-version "20191203" :date "09-Apr-2020 11:39:20.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 1064288 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16065 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2877 :al-overhead-at-end 0 :internal-dur-at-end 263 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2968 :al-overhead-at-end 0 :internal-dur-at-end 263 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2968 :al-overhead-at-end 0 :internal-dur-at-end 263 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2968 :al-overhead-at-end 0 :internal-dur-at-end 263 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16065 :visit-id "01" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2968 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3270 :pcs-gap 0 ) false 5 0 Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here. Buffer time limit from 1.6*10^6 / 245 = 6530, however we add in an extra factor of a few as leeway. A similar buffer time was used for obsevations of the similar brightness target HD 219134, which operated with the same instrumental setup as here.