Assigned ID: 2009
----- Attempting Submission 1 (Wed May 04 12:29:47 GMT 2011) -----Joint SpitzerThe Phase II incorrectly reports that the program was assigned 8 orbits -- the correct
number is 6 orbits as submitted. Alison Vick has already been informed.----- Attempting Submission 1 (Mon May 23 14:24:49 GMT 2011) -----The phase II incorrectly reports the program was assigned 8 orbits -- the correct number
is 6.Understanding A New Class of Mid−IR TransientsThere is a new class of stellar transients whose progenitors are completely obscured (probably) extreme AGB stars, where the dust in the surviving wind appears to reform after the transient and again cloak the system. Whether these are true supernovae or a new class of stellar eruption is unclear, so the key question is whether or not the star survived. However, their present day emission appears to be due to optically thick dust (shock) heated by the ejecta from the transient, so we must understand the evolution of this emission and the dust optical depths before we can determine the survival of the stars. We propose a combination of Spitzer, Hubble and Chandra observations to characterize 6 of the new transients and a comparison sample of 5 supernovae with late time emission due to shocks and 3 luminous variable outbursts with late time emission due to a surviving star surrounded by ejected matter. The SST data will characterize the shock luminosity and its rate of decay, both exploring the physics of dusty shocks and setting limits on the flux from any surviving star. The near−IR HST data will tightly constrain the optical depth of the dust and potentially allow us to see through it to any surviving star. If the emission is from a dusty shock, there must be X−ray emission, and the amount of soft X−ray absorption will determine the the absorbing column densities.The primary target will be observed with WFC3/IR in the J and H bands. We use two dithered
exposures in each filter.
The goal of the ACS parallels is to build the archival imaging of nearby galaxies in order to
identify the progenitors of supernovae in the future. The filter is chosen to be one of F814W,
F555W or F436W depending on the data already present in the archive. A weak ORIENT
constraint is used where necessary to ensure that ACS lies on the galaxy.
An WFC3/IR monitoring observation of SN2008S is already scheduled for August 2011 as part
of our previous program 12331. We have added a timing constraint to force the observation
for this proposal into the next visibility window in 2012.HOT STARS12false0.00.0falsefalsefalsefalseSUPPORTEDSTARSUPERNOVA TYPE IIThis object was generated by the targetselector and retrieved from the SIMBAD database.J200010 19 46.8100+45 31 35.00J2000STARSUPERNOVA TYPE IIOffset from centering on SN (11 03 15.3700 +27 58 29.50) to better cover galaxyJ200011 03 15.3700+27 58 29.50J2000STARSUPERNOVA TYPE IIShifted to include more of the galaxy from12 17 37.1800 +45 38 47.40J200012 17 37.1800+45 38 47.40J2000STARSUPERNOVA TYPE IIOffset from 13 52 51.7200 -01 06 39.20 to include more of galaxyJ200013 52 51.7200-01 06 39.20J2000STARSUPERNOVA TYPE IIShifted to capture several SN from 20 34 45.3300 +60 05 58.40J200020 34 45.3300+60 05 58.40J2000STARSUPERNOVA TYPE IIThis object was generated by the targetselector and retrieved from the SIMBAD database.J200000 54 34.2000-37 38 28.60J2000The scheduling data was generated by CASM 19.0.CASM was run in Phase I mode.WFC3/IRImagingNoNoF110WWFC3/IRImagingNoNoF160WACS/WFCImagingNoNoF814WACS/WFCImagingNoNoF555WACS/WFCImagingNoNoF435WWFC3/IRImagingNoNoF110WWFC3/IRImagingNoNoF160WACS/WFCImagingNoNoF814WACS/WFCImagingNoNoF555WACS/WFCImagingNoNoF435WWFC3/IRImagingNoNoF110WWFC3/IRImagingNoNoF160WACS/WFCImagingNoNoF814WACS/WFCImagingNoNoF555WACS/WFCImagingNoNoF435WWFC3/IRImagingNoNoF110WWFC3/IRImagingNoNoF160WACS/WFCImagingNoNoF814WACS/WFCImagingNoNoF555WACS/WFCImagingNoNoF435WWFC3/IRImagingNoNoF110WWFC3/IRImagingNoNoF160WACS/WFCImagingNoNoF814WACS/WFCImagingNoNoF555WACS/WFCImagingNoNoF435WWFC3/IRImagingNoNoF110WWFC3/IRImagingNoNoF160WACS/WFCImagingNoNoF814WACS/WFCImagingNoNoF555WACS/WFCImagingNoNoF435W/tmp/OPVisit8666518736882112438.xmlThe scheduling data was generated by CASM 19.0.CASM was run in Phase II mode.(Tic-Visit
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