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A possible radio supernova in the outer part of NGC 3310

M. K. Argo·T. W. B. Muxlow·A. Pedlar·R. J. Beswick·M. Strong
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Abstract

As part of an on-going radio supernova monitoring program, we have discovered a variable, compact steep spectrum radio source ~65 arcsec (~4 kpc) from the centre of the starburst galaxy NGC 3310. If the source is at the distance of NGC 3310, then its 5 GHz luminosity is ~3 x 10^{19} WHz^-1. The source luminosity, together with its variability characteristics, compact structure (<17 mas) and its association with a group of HII regions, leads us to propose that it is a previously uncatalogued type II radio supernova. A search of archival data also shows an associated X-ray source with a luminosity similar to known radio supernova.

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M. K. Argo, T. W. B. Muxlow, A. Pedlar, R. J. Beswick, M. Strong. 2004-05-17. A possible radio supernova in the outer part of NGC 3310. https://doi.org/10.1111/j.1365-2966.2004.08004.x

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