Long term monitoring of SGR 1806-20 after the Giant Flare

Details Long term monitoring of SGR 1806-20 after the Giant Flare Long term monitoring of SGR 1806-20 after the Giant Flare

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop...81m&link_type=abstract

XMM-Newton Proposal ID #05021702

Computer Science

Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Sgr 1806-20, Sgr 1806-20, Xmm-Newton Proposal 05021702

Scientific paper

SGR 1806-20 has recently emitted the most powerful giant flare ever observed from a Soft Gamma-ray Repeater. This probably involved a large scale rearrangement of the magnetosphere leading to observable variations in the properties of its persistent X-ray emission. Comparison of the pre-flare XMM-Newton observations with those obtained after this event supports a magnetar scenario in which the effects of a twisted magnetosphere are taken into account. We propose to continue our monitoring of SGR 1806-20 initiated in AO-5 in order to study the long term effects of the Giant Flare and how the source evolves toward quiescence after this ``once-in-a-lifetime event.

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