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We report the identification of a source coincident with the position of thenearby type II-P supernova (SN) 2008bk in high quality optical andnear-infrared pre-explosion images from the ESO Very Large Telescope (VLT). TheSN position in the optical and near-infrared pre-explosion images is identifiedto within about +-70 and +-40 mas, respectively, using post-explosion Ks-bandimages obtained with the NAOS CONICA adaptive optics system on the VLT. Thepre-explosion source detected in four different bands is precisely coincidentwith SN 2008bk and is consistent with being dominated by a single point source.We determine the nature of the point source using the STARS stellarevolutionary models and find that its colours and luminosity are consistentwith the source being a red supergiant progenitor of SN 2008bk with an initialmass of 8.5 +- 1.0 Msun.

VLT detection of a red supergiant progenitor of the type IIP supernova 2008bk