2001ApJ...553L..19C

Query : 2001ApJ...553L..19C

2001ApJ...553L..19C - Astrophys. J., 553, L19-L22 (2001/May-3)

Discovery of a bright radio supernova in the circumnuclear starburst of the luminous infrared Seyfert 1 galaxy NGC 7469.

COLINA L., ALBERDI A., TORRELLES J.M., PANAGIA N. and WILSON A.S.

Abstract (from CDS):

This Letter reports the first detection ever of a radio supernova (RSN) in the circumnuclear region of a highly luminous infrared, QSO-like, galaxy. The RSN, named RSN J230315+0852.4, is located in the circumnuclear starburst of the Seyfert 1 galaxy NGC 7469, at a distance of 600 pc from its QSO-like nucleus. The 8.4 GHz emission of RSN J230315+0852.4 represents about 7% of the total flux density emitted from within 1 kpc of the nucleus and 13% of the flux density emitted by the Seyfert nucleus itself. RSN J230315+0852.4, with an 8.4 GHz luminosity of 1.1x1021 W.Hz–1, is one of the most luminous and most distant RSNe ever detected and is also the closest of all known RSNe to a galactic nucleus. From the available radio information, no firm conclusion on the type of supernova, nor on the mass of the progenitor that has produced this RSN, can be made. An ongoing radio-monitoring program will be able to answer these questions.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Seyfert - Galaxies: Starburst - Radio Continuum: Galaxies - Radio Continuum: Stars - supernovae: individual (RSN J230315+0852.4)

Nomenclature: Fig.1, Table 1: [CAT2001b] RN (Nos R1-R3).

CDS comments: Radio Supernova (RSN) = [CAT2001] B230044.30+083616.2.

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
2 SN 1986J SN* 02 22 31.33 +42 19 56.4   18.4 18.4     SNII 331 1
3 SN 1988Z SN* 10 51 50.10 +16 00 00.5   16.8       SNIIn 385 1
4 SN 1990B SN* 12 36 33.86 +11 14 29.9     15.75     SNIc 131 1
5 SN 1983N SN* 13 36 51.23 -29 54 01.7   11.7       SNIb 278 1
6 SN 1982aa SN* 16 05 12.783 +20 32 38.24           ~ 24 1
7 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1928 2
8 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 3004 2
9 SN 2000ft SN* 23 03 15.45 +08 52 26.5           SNII 40 1
10 [DAC2007] C20 Cl* 23 03 15.569 +08 52 24.39           ~ 6 0
11 [DAC2007] C10 Cl* 23 03 15.6187875072 +08 52 26.050853136           ~ 5 0
12 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
13 [DAC2007] C6 Cl* 23 03 15.747 +08 52 26.35           ~ 6 0
14 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1

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