The Infrared Echo of SN2010jl and Its Implications for Shock Breakout Characteristics

dc.contributor.authorDwek, Eli
dc.contributor.authorSarangi, Arkaprabha
dc.contributor.authorArendt, Richard
dc.contributor.authorKallman, Timothy
dc.contributor.authorKazanas, Demos
dc.contributor.authorFox, Ori D.
dc.date.accessioned2022-02-01T16:11:02Z
dc.date.available2022-02-01T16:11:02Z
dc.date.issued2021-08-20
dc.description.abstractSN 2010jl is a Type IIn core-collapse supernova whose radiative output is powered by the interaction of the supernova (SN) shock wave with its surrounding dense circumstellar medium (CSM). After day ∼60, its light curve developed a near-infrared (NIR) excess emission from dust. This excess could be a thermal IR echo from preexisting CSM dust, or emission from newly formed dust either in the cooling post-shock region of the CSM, or in the cooling SN ejecta. Recent analysis has shown that dust formation in the CSM can commence only after day ∼380, and has also ruled out newly formed ejecta dust as the source of the NIR emission. The early (<380 days) NIR emission can therefore only be attributed to an IR echo. The H–K color temperature of the echo is about 1250 K. The best-fitting model requires the presence of about 1.6 × 10⁻⁴ Me of amorphous carbon dust at a distance of 2.2 × 10¹⁶ cm from the explosion. The CSM-powered luminosity is preceded by an intense burst of hard radiation generated by the breakout of the SN shock through the stellar surface. The peak burst luminosity seen by the CSM dust is significantly reduced by Thomson scattering in the CSM, but still has the potential of evaporating the dust needed to produce the echo. We show that the survival of the echo-producing dust provides important constraints on the intensity, effective temperature, and duration of the burst.en_US
dc.description.sponsorshipWe thank the referee for his/her useful comments that significantly improved the manuscript. This work was supported by NASA’s 16-ATP16-0004 research grant. R.G.A. was supported by NASA under award number 80GSFC21M0002.en_US
dc.description.urihttps://iopscience.iop.org/article/10.3847/1538-4357/ac09eaen_US
dc.format.extent16 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2hdcx-srio
dc.identifier.citationDwek, Eli, et al. The Infrared Echo of SN2010jl and Its Implications for Shock Breakout Characteristics. The Astrophysical Journal 917 (Aug. 20, 2021), no. 2. https://iopscience.iop.org/article/10.3847/1538-4357/ac09ea.en_US
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ac09ea
dc.identifier.urihttp://hdl.handle.net/11603/24108
dc.language.isoen_USen_US
dc.publisherIOPen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleThe Infrared Echo of SN2010jl and Its Implications for Shock Breakout Characteristicsen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0001-8403-8548en_US

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