J/ApJ/778/L19ivo://CDS.VizieR/J/ApJ/778/L19doi:10.26093/cds/vizier.17789019CDSHelou G.Kasliwal M.M.Ofek E.O.Arcavi I.Surace J.Gal-Yam A.2017-07-10T06:21:51Z2015-06-08T15:38:33ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsupernovaeinfrared-photometryWe present Spitzer observations at 3.6 and 4.5{mu}m of the supernova SN 2011dh (PTF 11eon) in M51 from 18 days to 625 days after explosion. The mid-infrared emission peaks at 24 days after explosion at a few x10^7^L _{sun}_, and decays more slowly than the visible-light bolometric luminosity. The infrared color temperature cools for the first 90 days and then is constant. Simple numerical models of a thermal echo can qualitatively reproduce the early behavior. At late times, the mid-IR light curve cannot be explained by a simple thermal echo model, suggesting additional dust heating or line emission mechanisms. We also propose that thermal echoes can serve as effective probes to uncover supernovae in heavily obscured environments, and speculate that under the right conditions, integrating the early epoch of the mid-infrared light curve may constrain the total energy in the shock breakout flash.2013ApJ...778L..19Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/778/L19CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)B/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-2014)J/A+A/562/A17 : SN 2011dh - The first 100 days (Ergon+, 2014)J/MNRAS/436/774 : Core collapse supernovae (type Ibc) (Eldridge+, 2013)J/other/PZ/32.6 : UBVRI light curves of SN 2011dh (Tsvetkov+, 2012)J/ApJ/742/L18 : Follow-up photometry of the SN IIb PTF 11eon (Arcavi+, 2011)J/ApJ/669/959 : Warm molecular hydrogen in SINGS galaxies (Roussel+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/778/L19https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/778/L19http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/778/L19https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/778/L19https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/778/L19http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/778/L19GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfrareddefaultJ/ApJ/778/L19/fig2SN2011dh light curves at 3.6 and 4.5 microns (see figure 2 in the paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJDModified Julian Date of the observationdtime.epochdoubleBandFilter used in the observation (3.6 or 4.5)uminstr.setup;obsfloatmag[11.2/18.5] Observed magnitude in Band (1)magphot.magdoubleFlux[11/6351] Observed flux densityuJyphot.flux.densitydoubleS/N[14.5/1335] Signal-to-noise of the observationobs.param;obsdouble