0 Assigned ID: 844 ----- Attempting Submission 1 (Fri Apr 08 21:16:44 GMT 2016) ----- HST Phase I Proposal 844 (RNe.apt) successfully submitted. Receipt: # 844-1 The number of orbits used exceeds the number allocated INEFFICIENT ORDERING OF FP-POS POSITIONS INEFFICIENT ORDERING OF FP-POS POSITIONS INEFFICIENT ORDERING OF FP-POS POSITIONS If there is any technical problem with this submission, please sent an email to patrick.godon@villanova.edu who is responsible for submitting this phase 2. Bill Januszewski is the contact person on STScI side. This is a RE-Submission, in which I have changed the buffer times to be equal to the exposure times as suggested by Cristina Oliveira to ensure that data would not be lost in the case where the flux would be higher than expected (though still safe enough to observe). 148593445 ----- Attempting Submission 1 (Tue Jul 19 18:59:04 GMT 2016) ----- ----- Attempting Submission 3 (Fri Sep 02 17:39:18 GMT 2016) ----- ----- Attempting Submission 4 (Tue Dec 20 14:47:13 GMT 2016) ----- ..This resubmission was only to change the buffer time and so only the orbit planner was re-run as all the other options (target confirmation, BOT, Visit Planner,..) are not affected by this change. Short Orbital Period Recurrent Novae as Supernovae Type Ia Progenitors We propose to obtain the first ever far ultraviolet spectra of two critically important recurrent novae, IM Normae and CI Aquilae with HST COS. IM Normae and CI Aquilae, together with T Pyxidis, form a subclass of recurrent novae with short orbital periods (<1day), similar outburst characteristics in the optical, slow declines and complete diversity in optical quiescence. All are thought to contain massive white dwarfs accreting at a high rate. These two factors, as well as double white dwarf mergers, are central to identifying the dominant pathway(s) to the explosions of Type Ia supernovae. These are "standard candles of cosmology", which led to the discovery of the accelerating expansion of the universe in the presence of dark energy. We will (1) compare their FUV spectra to our earlier HST COS and STIS spectra of T Pyx, (2) determine their accretion rates by fitting their FUV continua and line spectra with state-of-the-art accretion disk models with vertical structure and NLTE hot white dwarf photospheres, (3) check for the detection of the underlying WD photosphere, (4) examine the N/C abundance ratio, (5) look for signs of magnetic accretion (truncated disks, very strong He II emission) and (6) look for FUV evidence of wind outflow in the form of P Cygni line structure and blue-shifted absorption features. We suspect CI Aql is evolving into a persistent supersoft x-ray source, and ultimately will explode as a SN Ia. We will use COS in the FUV Spectroscopic Configuration with the G140L grating centered at 1105A for each of our two targets, CI Aql and IM Nor, each for a duration of 3 consecutive orbits, totalling 6 orbits. With a visual magnitude of 16.7 and 18.3, we expect CI Aql and IM Nor to have flux below 1.e-14 ergs/s/cm2/A and possibly as low as 1.e-16 ergs/s/cm2/A , since both targets are strongly reddened, possibly as much as E(B-V)=0.8. Assuming a flux of 5.e-16 ergs/s/cm2/A for our two targets, we can achiebe a S/N of 10 with only 3 orbits per target. IM Nor has a visibility of 58min (3480s) per orbit. CI Aql has a visibility of 54min (3240s) per orbit. Overheads for a one-orbit visit consist of a guide star aquisition (6min first orbit, 4min subsequent orbits), a target acquisition (6min), switch to the G140L grating (3min), detector setup (1min) and readout (8min for 4 FP-POS positions). With the targets visibility as given above, this leaves 130min (7800s) on-target exposure time for a 3-orbit visit for IM Nor 142min (8520s) on-target exposure time for a 3-orbit visit for CI Aql Using the ETC for COS G140L (1105) this gives a S/N of 11.9 (COS.sp.693599) for IM Nor at 1310A S/N of 12.4 for CI Aql at 1310A Non of the stars in our target list exceeds the Bright Object Limit (BOL) in quiescence. However, these targets are variables, and we will therefore implement a ground-based monitoring campaign for them, that will be carry out by members of the AAVSO (Stellar Kafka) and by the Center for Backyard Astronomy. Stellar Physics 6 false true false false false false AVAILABLE STAR RECURRENT NOVA NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 UNIDENTIFIED BLANK FIELD NO This target is a blank piece of sky which is the bright object safe pointing and is 9.697 arcseconds away at PA 248.2 degrees from NOVA-NOR-1920. J2000 STAR RECURRENT NOVA NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 UNIDENTIFIED BLANK FIELD NO This target is a blank piece of sky which is the bright object safe pointing and is 9.687 arcsec away at PA 75.8 deg from NOVA-AQL-1917. J2000 COS/FUV Spectroscopic No No G140L 1105 COS/FUV Spectroscopic No No G140L 1105 Timing link suitability includes constraints ([01 After 1A by at least 3.0 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. This should be scheduled in evening-local time. Flags need to be cleared during the work day. 1487102342000 280.06 (Tic-Visit :proposal-id 14641 :visit-id "01" :proposal-version -1 :trans-version "20160601" :date "20-Dec-2016 11:55:24.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 391424 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14641 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14641 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3037 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3403 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14641 :visit-id "01" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3171 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3403 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14641 :visit-id "01" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3171 :al-overhead-at-end 0 :internal-dur-at-end 407 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3403 :pcs-gap 0 ) false 3 0 The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. This visit is for BOP checking the safe target only and should not execute onboard HST. (Tic-Visit :proposal-id 14641 :visit-id "1B" :proposal-version -1 :trans-version "20160601" :date "20-Dec-2016 11:53:40.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 391424 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14641 :visit-id "1B" :obset-id "1B" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14641 :visit-id "1B" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3060 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3403 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14641 :visit-id "1B" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3171 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3403 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14641 :visit-id "1B" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3171 :al-overhead-at-end 0 :internal-dur-at-end 407 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3403 :pcs-gap 0 ) false 3 0 Timing link suitability includes constraints ([02 After 2A by 3.0 to 5.0 days] [02 After 2A by at least 3.0 days]) The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit4572125175469854154.xml This should be scheduled in evening-local time. Flags need to be cleared during the day. (Tic-Visit :proposal-id 14641 :visit-id "02" :proposal-version -1 :trans-version "20170613" :date "11-Sep-2017 11:20:38.0" :trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 391424 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14641 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14641 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2844 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14641 :visit-id "02" :orbit-number 2 :pcs-time 222 :si-vis-utilization 2987 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14641 :visit-id "02" :orbit-number 3 :pcs-time 222 :si-vis-utilization 2987 :al-overhead-at-end 0 :internal-dur-at-end 407 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) true 3 3 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit2277526110299966599.xml Timing link suitability includes constraints ([02 After 2A by 3.0 to 5.0 days] [02 After 2A by at least 3.0 days]) The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. This visit allocates and set up the safe position offset slot for visit 02 which will use that slot. (Tic-Visit :proposal-id 14641 :visit-id "2A" :proposal-version -1 :trans-version "20170613" :date "11-Sep-2017 11:21:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "11" :si-bright-earth-limb-angle 20.0 :data-volume 0 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14641 :visit-id "2A" :obset-id "2A" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14641 :visit-id "2A" :orbit-number 1 :pcs-time 333 :si-vis-utilization 5 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit5668808516494767059.xml This visit is for BOP checking the safe target only and should not execute onboard HST. (Tic-Visit :proposal-id 14641 :visit-id "2B" :proposal-version -1 :trans-version "20170613" :date "11-Sep-2017 11:21:40.0" :trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 391424 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14641 :visit-id "2B" :obset-id "2B" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14641 :visit-id "2B" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2877 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14641 :visit-id "2B" :orbit-number 2 :pcs-time 222 :si-vis-utilization 2987 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14641 :visit-id "2B" :orbit-number 3 :pcs-time 222 :si-vis-utilization 2987 :al-overhead-at-end 0 :internal-dur-at-end 407 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) true 3 3 Timing link suitability includes constraints ([01 After 1A by at least 3.0 days]) The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. 1486832761000 280.06 (Tic-Visit :proposal-id 14641 :visit-id "1A" :proposal-version -1 :trans-version "20160601" :date "20-Dec-2016 11:56:57.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "11" :si-bright-earth-limb-angle 20.0 :data-volume 0 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14641 :visit-id "1A" :obset-id "1A" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14641 :visit-id "1A" :orbit-number 1 :pcs-time 333 :si-vis-utilization 5 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3403 :pcs-gap 0 ) false 1 0