TY - JOUR
T1 - Radio detection of supernova 2004ip in the circumnuclear region of the luminous infrared galaxy IRAS 18293-3413
AU - Pérez-Torres, M. A.
AU - Mattila, S.
AU - Alberdi, A.
AU - Colina, L.
AU - Torrelles, J. M.
AU - Väisänen, P.
AU - Ryder, S.
AU - Panagia, N.
AU - Wilson, A.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - 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.
AB - 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.
KW - galaxies: starburst
KW - radio continuum: galaxies
KW - radio continuum: stars
KW - supernovae: individual (SN 2004ip)
UR - http://www.scopus.com/inward/record.url?scp=43049101190&partnerID=8YFLogxK
U2 - 10.1086/524682
DO - 10.1086/524682
M3 - Article
AN - SCOPUS:43049101190
VL - 671
SP - L21-L24
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1
ER -