Constraints on the progenitor of sn 2010jl and pre-existing hot dust in its surrounding medium

Eli Dwek, Richard G. Arendt, Ori D. Fox, Patrick L. Kelly, Nathan Smith, Schuyler D. Van Dyk, Alexei V. Filippenko, Jennifer Andrews, Isaac Shivvers

Research output: Contribution to journalArticlepeer-review

Abstract

A search for the progenitor of SN 2010jl, an unusually luminous core-collapse supernova of Type IIn, using preexplosion Hubble/WFPC2 and Spitzer/IRAC images of the region, yielded upper limits on the UV and near-infrared (IR) fluxes from any candidate star. These upper limits constrain the luminosity and effective temperature of the progenitor, the mass of any preexisting dust in its surrounding circumstellar medium (CSM), and dust proximity to the star. A lower limit on the CSM dust mass is required to hide a luminous progenitor from detection by Hubble. Upper limits on the CSM dust mass and constraints on its proximity to the star are set by requiring that the absorbed and reradiated IR emission not exceed the IRAC upper limits. Using the combined extinction-IR emission constraints we present viable Md - R1 combinations, where Md and R1 are the CSM dust mass and its inner radius. These depend on the CSM outer radius, dust composition and grain size, and the properties of the progenitor. The results constrain the pre-supernova evolution of the progenitor, and the nature and origin of the observed post-explosion IR emission from SN 2010jl. In particular, an η Car-type progenitor will require at least 4 mag of visual extinction to avoid detection by the Hubble. This can be achieved with dust masses η 10-3 Mo (less than the estimated 0.2-0.5 Mo around η Car) which must be located at distances of & 1016 cm from the star to avoid detection by Spitzer.

Original languageEnglish (US)
JournalUnknown Journal
StatePublished - Aug 16 2017

Keywords

  • Circumstellar matter
  • Dust, extinction
  • Infrared: Stars
  • Supernovae: General
  • Supernovae: Individual (SN 2010jl)

ASJC Scopus subject areas

  • General

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