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First spectroscopic imaging observations of the sun at low radio frequencies with the Murchison Widefield Array prototype

Oberoi, Divya; Matthews, Lynn D; Cairns, Iver Hugh; Emrich, David; Lobzin, Vasili; Lonsdale, Colin J; Morgan, Edward; Prabu, T; Vedantham, Harish; Wayth, Randall, B.; Williams, Andrew; Briggs, Franklin; Dawson, Murray; de Gans, Andre; Kocz, J.; Kowald, Errol; Vaccarella, Annino; Waterson, Mark; Benkevitch, Leonid; Bernardi, G; Burns, Steven; Derome, Mark; Greenhill, Lincoln; Kamini, P A; Kincaid, Barton B; Madhavi, S; Rogers, Alan; Roshi, Anish; Srivani, K. S.; Whitney, Alan

Description

We present the first spectroscopic images of solar radio transients from the prototype for the Murchison Widefield Array, observed on 2010 March 27. Our observations span the instantaneous frequency band 170.9-201.6 MHz. Though our observing period is characterized as a period of "low" to "medium" activity, one broadband emission feature and numerous short-lived, narrowband, non-thermal emission features are evident. Our data represent a significant advance in low radio frequency solar imaging,...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/66742
Source: Astrophysical Journal, The
DOI: 10.1088/2041-8205/728/2/L27

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