The infrared echo of SN2010jl and its implications for shock breakout characteristics

Abstract

SN 2010jl is a Type IIn core collapse supernova whose radiative output is powered by the interaction of the SN shock wave with its surrounding dense circumstellar medium (CSM). After day ~60, its light curve developed a NIR excess emission from dust. This excess could be a thermal IR echo from pre-existing CSM dust, or emission from newly-formed dust either in the cooling postshock 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 d) 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 1.6e-4 Msun of amorphous carbon dust at a distance of 2.2e16 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.

Accepted for publication in the ApJ, 20 pages, 1 table, and 17 figures

References in corpus (11)

• Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
• Rapid formation of large dust grains in the luminous supernova SN 2010jl
• A Massive Progenitor of the Luminous Type IIn Supernova 2010jl
• Numerical simulations of super-luminous supernovae of type IIn
• The Destruction of the Circumstellar Ring of SN 1987A
• Infrared Echoes Reveal the Shock Breakout of the Cas A Supernova
• Disentangling Dust Components in SN 2010jl: The First 1400 Days
• The Candidate Progenitor of the Type IIn SN 2010jl is Not an Optically Luminous Star
• The Role of Inhomogeneities in Supernova Shock Breakout Emission
• Dust formation in AGN winds
• Constraints on the Progenitor of SN 2010jl and Pre-Existing Hot Dust in its Surrounding Medium

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