The Evolution of the Radio Nebula Produced by the 2004 December 27 Giant Flare from SGR 1806-20

Details The Evolution of the Radio Nebula Produced by the 2004 December 27 Giant Flare from SGR 1806-20 The Evolution of the Radio Nebula Produced by the 2004 December 27 Giant Flare from SGR 1806-20

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.1910g&link_type=abstract

American Astronomical Society Meeting 207, #19.10; Bulletin of the American Astronomical Society, Vol. 37, p.1188

Astronomy and Astrophysics

Astronomy

Scientific paper

On 2004 December 27, magnetar SGR 1806-20 emitted the brightest Gamma-ray flare ever observed, outshining the entire Milky Way for a fraction of a second. This flare also created a radio nebula, which is believed to have been produced by material ejected from the surface of the neutron star. Using a suite of radio telescopes, we have been measuring the flux, growth, and proper motion of this source for the past year, allowing us to measure the spectrum and shape of this object, derive estimates of the initial mass and energy, and model the interaction of this material with its environment. In this poster, we present the most recent results from this campaign, as well as their implications for the physical mechanism behind the 2004 Dec. 27 flare.
NRAO is a facility of the NSF operated under cooperative agreement by AUI. The ATCA is funded by the Commonwealth of Australia foroperation as a National Facility managed by CSIRO.

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