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Evidence for a compact wolf-rayet progenitor for the type Ic supernova PTF10vgv

  • A. Corsi*
  • , E. O. Ofek
  • , A. Gal-Yam
  • , D. A. Frail
  • , D. Poznanski
  • , P. A. Mazzali
  • , S. R. Kulkarni
  • , M. M. Kasliwal
  • , I. Arcavi
  • , S. Ben-Ami
  • , S. B. Cenko
  • , A. V. Filippenko
  • , D. B. Fox
  • , A. Horesh
  • , J. L. Howell
  • , I. K.W. Kleiser
  • , E. Nakar
  • , I. Rabinak
  • , R. Sari
  • , J. M. Silverman
  • D. Xu, J. S. Bloom, N. M. Law, P. E. Nugent, R. M. Quimby
*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

We present the discovery of PTF10vgv, a Type Ic supernova (SN) detected by the Palomar Transient Factory, using the Palomar 48 inch telescope (P48). R-band observations of the PTF10vgv field with P48 probe the SN emission from its very early phases (about two weeks before R-band maximum) and set limits on its flux in the week prior to the discovery. Our sensitive upper limits and early detections constrain the post-shock-breakout luminosity of this event. Via comparison to numerical (analytical) models, we derive an upper-limit of R ≲ 4.5 R (R ≲ 1 R ) on the radius of the progenitor star, a direct indication in favor of a compact Wolf-Rayet star. Applying a similar analysis to the historical observations of SN1994I yields R ≲ 1/4 R for the progenitor radius of this SN.

Original languageEnglish
Article numberL5
JournalAstrophysical Journal Letters
Volume747
Issue number1
DOIs
StatePublished - 1 Mar 2012

Keywords

  • supernovae: general
  • supernovae: individual (PTF 10vgv)

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