2010MNRAS.404L.109M

Query : 2010MNRAS.404L.109M

2010MNRAS.404L.109M - Mon. Not. R. Astron. Soc., 404, L109-L113 (2010/May-1)

Discovery of an unusual new radio source in the star-forming galaxy M82: faint supernova, supermassive black hole or an extragalactic microquasar ?

MUXLOW T.W.B., BESWICK R.J., GARRINGTON S.T., PEDLAR A., FENECH D.M., ARGO M.K., VAN EYMEREN J., WARD M., ZEZAS A. and BRUNTHALER A.

Abstract (from CDS):

A faint new radio source has been detected in the nuclear region of the starburst galaxy M82 using Multi-Element Radio-Linked Interferometer Network radio observations designed to monitor the flux density evolution of the recent bright supernova SN2008iz. This new source was initially identified in observations made between 2009 May 1 and 5 but had not been present in observations made 1 week earlier, or in any previous observations of M82. In this Letter, we report the discovery of this new source and monitoring of its evolution over its first 9 months of existence. The true nature of this new source remains unclear, and we discuss whether this source is an unusual and faint supernova, a supermassive black hole associated with the nucleus of M82 or intriguingly the first detection of radio emission from an extragalactic microquasar.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): supernovae: general - galaxies: individual: M82 - galaxies: nuclei - galaxies: starburst - radio continuum: stars

Simbad objects: 19

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Number of rows : 19
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 SN 2007gr SN* 02 43 27.98 +37 20 44.7       12.77   SNIc 265 1
2 SN 1987A SN* 05 35 27.98840 -69 16 11.1134           SNIIpec 5203 2
3 2MASS J07371703+6535579 HXB 07 37 17.0432126424 +65 35 57.826001220           SNIIP 317 1
4 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
5 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
6 [FBM2010] 40.61+56.3 SNR 09 55 49.370 +69 40 42.44           ~ 16 0
7 [HTC94] 12 SR? 09 55 50.211 +69 40 46.81           ~ 14 0
8 CXOM82 J095550.9+694044 HXB 09 55 50.690 +69 40 43.76           ~ 96 0
9 SN 2008iz SN* 09 55 51.55 +69 40 45.8           SNII: 63 1
10 [FBM2010] 43.31+59.2 SNR 09 55 52.030 +69 40 45.42           ~ 32 0
11 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
12 EQ J095552.5+694045.4 Rad 09 55 52.5083 +69 40 45.420           ~ 12 1
13 NAME 44.0+59.5 SNR 09 55 52.730 +69 40 45.78           ~ 45 1
14 NVSS J095910+693216 rG 09 59 10.64309 +69 32 17.7106           ~ 10 1
15 SN 2009bb SN* 10 31 33.92 -39 57 28.2           SNIc 185 1
16 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
17 NGC 5408 EmG 14 03 20.907 -41 22 39.75   12.59   11.96 12.2 ~ 368 3
18 Mrk 668 BLL 14 07 00.39441712 +28 27 14.6901341   16.13 15.35 10.29   ~ 826 3
19 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 2035 2

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