The radio nebula produced by the 27 December 2004 giant flare from SGR 1806-20

Research output: Contribution to journalArticle

Abstract

On 27 December 2004, just the third giant flare was observed from a magnetar, in this case SGR 1806-20. This giant flare was the most energetic of the three, and analysis of a Very Large Array observation of SGR 1806-20 after the giant flare revealed the existence of a new, bright, transient radio source at its position. Follow-up radio observations of this source determined that initially, this source underwent a mildly relativistic one-sided expansion which ceased at the same time as a temporary rebrightening of the radio source. These observational results imply that the radio emission is powered by ∼ 10 24 g of baryonic material which was ejected off the surface on the neutron star during the giant flare.

Original languageEnglish (US)
Pages (from-to)39-42
Number of pages4
JournalAstrophysics and Space Science
Volume308
Issue number1-4
DOIs
StatePublished - Apr 2007

Keywords

  • Pulsars: general
  • Pulsars: individual SGR 1806-20

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'The radio nebula produced by the 27 December 2004 giant flare from SGR 1806-20'. Together they form a unique fingerprint.

  • Cite this