0 Assigned ID: 2213 ----- Attempting Submission 1 (Tue Oct 29 11:28:13 GMT 2013) ----- HST Phase I Proposal 2213 (p10081_mergeda.pdf.apt) successfully submitted. ----- Attempting Submission 2 (Tue Oct 29 11:44:24 GMT 2013) ----- Spitzer Joint Program fixing email 0 ----- Attempting Submission 1 (Thu Nov 21 19:04:20 GMT 2013) ----- Dust to Dust: Monitoring the Evolution of the New Class of Self-Obscured Transients The goal of this proposal is to understand a new class of explosive transients associated with the most massive AGB stars. Today these sources are true creatures of the mid-IR, being optically invisible and very faint in the near-IR. By coarsely monitoring them with Spitzer and HST we can examine the evolution of the luminosity, dust optical depth and dust radius/temperature at a key time when their observed fluxes are approaching those of the two known progenitors. At its very simplest, they must stop fading in the next ~year or they are the theoretically expected but observationally missing electron capture supernovae (ecSNe). The only way to find out is to continue monitoring the evolution of the four closest examples. Each observation is done as a 3 point line dither in F160W and F110W combined with one extra F110W exposure -- the latter is adjusted to come as close as possible to using the available time Each of the images is done as a STEP100 sequence Two of the targets, SN2002bu and SN2008S, are not placed at field center, but offset. In particular, this places another old SN in the field of view of the SN2008S observations. These pointings have all been used successfully in previous WFC3/IR observations of the targets. Default false false false false false SUPPORTED STAR SUPERNOVA TYPE II This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 STAR SUPERNOVA TYPE II Shifted to include more of the galaxy from12 17 37.1800 +45 38 47.40 J2000 J2000 STAR SUPERNOVA TYPE II Shifted to capture several SN from 20 34 45.3300 +60 05 58.40 J2000 J2000 STAR SUPERNOVA TYPE II This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W POS-TARG DITHER 0.605 LINE false false 3 41.788 WFC3-IR-DITHER-LINE-3PT 1 false /home/bhima/ckochanek/OP-cache/new-v01.xml The scheduling data was generated by CASM 21.2. CASM was run in Phase II mode. 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