Maund, J.R., Pastorello, A., Mattila, S. et al. (2 more authors) (2016) The possible detection of a binary companion to a Type Ibn supernova progenitor. Astrophysical Journal, 833 (2). 128. ISSN 0004-637X
Abstract
We present late-time observations of the site of the Type Ibn supernova (SN) 2006jc, acquired with the Hubble Space Telescope Advanced Camera for Surveys. A faint blue source is recovered at the SN position, with brightness mF W 435 = 26.76 0.20, mF W 555 = 26.60 0.23 and mF W 625 = 26.32 0.19 mag, although there is no detection in a contemporaneous narrow-band Ha image. The spectral energy distribution of the late-time source is well-fit by a stellar-like spectrum (log 3.7 Teff > and log L L > 4), subject to only a small degree of reddening —consistent with that estimated for SN 2006jc itself at early-times. The lack of further outbursts after the explosion of SN 2006jc suggests that the precursor outburst originated from the progenitor. The possibility of the source being a compact host cluster is ruled out on the basis of the source’s faintness; however, the possibility that the late-time source may be an unresolved light echo originating in a shell or sphere of pre-SN dust (within a radius 1 pc) is also discussed. Irrespective of the nature of the late-time source, these observations rule out a luminous blue variable as a companion to the progenitor of SN 2006jc.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016. The American Astronomical Society. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | supernovae: general ; supernovae: individual (2006jc) |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 07 Jul 2017 12:26 |
Last Modified: | 07 Jul 2017 12:26 |
Published Version: | https://doi.org/10.3847/1538-4357/833/2/128 |
Status: | Published |
Publisher: | American Astronomical Society |
Refereed: | Yes |
Identification Number: | 10.3847/1538-4357/833/2/128 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:118764 |