We report the identification of a source coincident with the position of the nearby Type II-P supernova (SN) 2008bk in high-quality optical and near-infrared preexplosion images from the ESO Very Large Telescope (VLT). The SN position in the optical and near-infrared preexplosion images is identified to within about +/- 70 and +/- 40 mas, respectively, using postexplosion-band images obtained with the NAOS CONICA adaptive optics system K-s on the VLT. The preexplosion source detected in four different bands is precisely coincident with SN 2008bk and is consistent with being dominated by a single point source. We determine the nature of the point source using the STARS stellar evolutionary models and find that its colors and luminosity are consistent with the source being a red supergiant progenitor of SN 2008bk with an initial mass of 8.5 +/- 1.0 M-circle dot.
|Number of pages||4|
|Journal||Astrophysical Journal Letters|
|Issue number||2 PART 2|
|Publication status||Published - Dec 2008|
ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics
Mattila, S., Smartt, S., Eldridge, J., Maund, J., Crockett, R., & Danziger, I. J. (2008). VLT DETECTION OF A RED SUPERGIANT PROGENITOR OF THE TYPE II-P SUPERNOVA 2008bk. Astrophysical Journal Letters, 688(2 PART 2), L91-L94.