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On the progenitor of the Type Ibc supernova 2012fh

Johnson, Samson A. and Kochanek, C. S. and Adams, S. M. (2017) On the progenitor of the Type Ibc supernova 2012fh. Monthly Notices of the Royal Astronomical Society, 472 (3). pp. 3115-3119. ISSN 0035-8711.

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Little is observationally known about the progenitors of Type Ibc supernovae (SNe) or the typical activity of SNe progenitors in their final years. Here, we analyse deep Large Binocular Telescope imaging data spanning the 4 yr before and after the Type Ibc SN 2012fh using difference imaging. We place 1σ upper limits on the detection of the progenitor star at M_U > −3.8, M_B > −3.1, M_V > −3.8 and M_R > −4.0 mag. These limits are the tightest placed on a Type Ibc SN to date and they largely rule out single star evolutionary models in favour of a binary channel as the origin of this SN. We also constrain the activity of the progenitor to be small on an absolute scale, with the RMS UBVRoptical variability ≲ 2500 L⊙ and long-term dimming or brightening trends ≲ 1000 L⊙ yr^(−1) in all four bands.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Johnson, Samson A.0000-0001-9397-4768
Kochanek, C. S.0000-0001-6017-2961
Adams, S. M.0000-0001-5855-5939
Additional Information:© 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2017 August 21. Received 2017 August 2; in original form 2017 June 28. Published: 23 August 2017. We thank T. Sukhbold and the referee of this paper for useful comments. CSK is supported by the National Science Foundation grant AST-1515876 and AST-1515927. This work is based on observations made with the Large Binocular Telescope. The Large Binolcular Telescope (LBT) is an international collaboration among institutions in the United States of America, Italy and Germany. The LBT Corporation partners are the University of Arizona on behalf of the Arizona university system and the Istituto Nazionale di Astro. This research has made use of the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
Funding AgencyGrant Number
Subject Keywords:stars: massive – supernovae: general – supernovae: individual: SN 2012fh – galaxies: individual: NGC 3344
Issue or Number:3
Record Number:CaltechAUTHORS:20171103-073514791
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Official Citation:Samson A. Johnson, C. S. Kochanek, S. M. Adams; On the progenitor of the Type Ibc supernova 2012fh, Monthly Notices of the Royal Astronomical Society, Volume 472, Issue 3, 11 December 2017, Pages 3115–3119,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82925
Deposited By: Tony Diaz
Deposited On:03 Nov 2017 17:12
Last Modified:05 Nov 2019 00:40

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