Details

Autor(en) / Beteiligte

• Crockett, R. M.
• Eldridge, J. J.
• Smartt, S. J.
• Pastorello, A.
• Gal-Yam, A.
• Fox, D. B.
• Leonard, D. C.
• Kasliwal, M. M.
• Mattila, S.
• Maund, J. R.
• Stephens, A. W.
• Danziger, I. J.

Titel

The type IIb SN 2008ax: the nature of the progenitor

Ist Teil von

• Monthly notices of the Royal Astronomical Society. Letters, 2008-11, Vol.391 (1), p.L5-L9

Ort / Verlag

Oxford, UK: Blackwell Science Ltd

Erscheinungsjahr

2008

Quelle

Wiley Online Library

Beschreibungen/Notizen

• A source coincident with the position of the type IIb supernova (SN) 2008ax is identified in pre-explosion Hubble Space Telescope (HST) Wide Field Planetary Camera 2 observations in three optical filters. We identify and constrain two possible progenitor systems: (i) a single massive star that lost most of its hydrogen envelope through radiatively driven mass-loss processes, prior to exploding as a helium-rich Wolf–Rayet star with a residual hydrogen envelope, and (ii) an interacting binary in a low-mass cluster producing a stripped progenitor. Late time, high-esolution observations along with detailed modelling of the SN will be required to reveal the true nature of this progenitor star.