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A Search for Radio Emission from Type Ia Supernovae

Panagia, Nino and Van Dyk, Schuyler D. and Weiler, Kurt W. and Sramek, Richard A. and Stockdale, Christopher J. and Murata, Kimberly P. (2006) A Search for Radio Emission from Type Ia Supernovae. Astrophysical Journal, 646 (1). pp. 369-377. ISSN 0004-637X.

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We present and discuss the radio observations of 27 Type Ia supernovae (SNe Ia), observed over two decades with the Very Large Array. No SN Ia has been detected so far in the radio, implying a very low density for any possible circumstellar material established by the progenitor, or progenitor system, before explosion. We derive 2 σ upper limits to a steady mass-loss rate for individual SN systems as low as ~3 × 10^(-8) M_☉ yr^(-1), which argues strongly against white dwarf accretion via a stellar wind from a massive binary companion in the symbiotic star, an example of the "single-degenerate" scenario. However, a white dwarf accreting from a relatively low mass companion via a sufficiently high efficiency (>60%-80%) Roche lobe overflow is still consistent with our limits. The "double-degenerate" merger scenario also cannot be excluded.

Item Type:Article
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URLURL TypeDescription
Van Dyk, Schuyler D.0000-0001-9038-9950
Additional Information:© 2006 American Astronomical Society. Received 2006 February 21; accepted 2006 March 29. K. W. W. thanks the Office of Naval Research for the 6.1 funding supporting this research. C. J. S. is a Cottrell Scholar of Research Corporation and work on this project has been supported by the NASA Wisconsin Space Grant Consortium. Additional information and data on RSNe can be found at and linked pages.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Wisconsin Space Grant ConsortiumUNSPECIFIED
Subject Keywords:binaries: close; binaries: symbiotic; radio continuum: stars; stars: mass loss; supernovae: general; white dwarfs
Issue or Number:1
Record Number:CaltechAUTHORS:20110505-152632449
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Official Citation:A Search for Radio Emission from Type Ia Supernovae Nino Panagia et al. 2006 ApJ 646 369
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23563
Deposited By: Jason Perez
Deposited On:06 May 2011 17:29
Last Modified:03 Oct 2019 02:47

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