Radio detection of supernova 2004ip in the circumnuclear region of the luminous infrared galaxy IRAS 18293-3413

M. A. Pérez-Torres, S. Mattila, A. Alberdi, L. Colina, J. M. Torrelles, P. Väisänen, S. Ryder, N. Panagia, A. Wilson

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17 Citations (Scopus)

Abstract

We report a radio detection of supernova SN 2004ip in the circumnuclear region of the luminous infrared galaxy IRAS 18293-3413 , using Very Large Array (VLA) observations at 8.4 GHz on 2007 June 11. SN 2004ip had been previously discovered at near-infrared wavelengths using adaptive optics observations, but its nature (core collapse or thermonuclear) could not be definitely established. Our radio detection, about 3 years after the explosion of the supernova, indicates a prominent interaction of the ejecta of SN 2004ip with the circumstellar medium, confirming that the supernova was a core collapse event (probably a Type II) and strongly suggesting that its progenitor was a massive star with a significant mass loss prior to its explosion. SN 2004ip has a 8.4 GHz luminosity of 3.5 x 1027 ergs s-l Hz-1, about 3 times as bright as SN 2000ft in NGC 7469 at a similar age; given its projected distance to the nucleus (~500 pc), it is one of the closest of all known radio SNe to a galaxy nucleus and one of the brightest radio SNe ever.

Original languageEnglish
Pages (from-to)L21-L24
Number of pages4
JournalAstrophysical Journal
Volume671
Issue number1
DOIs
Publication statusPublished - 1 Jan 2007
Externally publishedYes

Keywords

  • galaxies: starburst
  • radio continuum: galaxies
  • radio continuum: stars
  • supernovae: individual (SN 2004ip)

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