RADIO EMISSION FROM SN 1994I IN NGC 5194 (M 51): THE BEST-STUDIED TYPE Ib/c RADIO SUPERNOVA
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Author(s)
Weiler, Kurt W.
Panagia, Nino
Stockdale, Christopher
Rupen, Michael
Sramek, Richard A.
Williams, Christopher Leigh
Date Issued
October 2011
Journal
Astrophysical Journal
Publisher
IOP Publishing
Citation
Weiler, Kurt W., Nino Panagia, Christopher Stockdale, Michael Rupen, Richard A. Sramek, and Christopher L. Williams. “RADIO EMISSION FROM SN 1994I IN NGC 5194 (M 51): THE BEST-STUDIED TYPE Ib/c RADIO SUPERNOVA.” The Astrophysical Journal 740, no. 2 (October 3, 2011): 79. © 2011 The American Astronomical Society
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Final published version
Abstract
We present the results of detailed monitoring of the radio emission from the Type Ic supernova SN 1994I from three days after optical discovery on 1994 March 31 until eight years later at age 2927 days on 2002 April 5. The data were mainly obtained using the Very Large Array at the five wavelengths of λλ1.3, 2.0, 3.6, 6.2, and 21 cm and from the Cambridge 5 km Ryle Telescope at λ2.0 cm. Two additional measurements were obtained at millimeter wavelengths. This data set represents the most complete, multifrequency radio observations ever obtained for a Type Ib/c supernova. The radio emission evolves regularly in both time and frequency and is well described by established supernova emission/absorption models. It is the first radio supernova with sufficient data to show that it is clearly dominated by the effects of synchrotron self-absorption at early times.
MIT Department
MIT Kavli Institute for Astrophysics and Space Research
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1088/0004-637x/740/2/79
