SGR 1627-41: a transient Soft Gamma-ray Repeater

Details SGR 1627-41: a transient Soft Gamma-ray Repeater SGR 1627-41: a transient Soft Gamma-ray Repeater

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop...79m&link_type=abstract

XMM-Newton Proposal ID #05021401

Physics

Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Sgr 1627-41, Xmm-Newton Proposal 05021401

Scientific paper

Soft Gamma-ray Repeaters were the first class of X-ray sources believed to host magnetars, i.e. isolated neutron stars with surface magnetic fields of 10^14-10^15 G. SGR 1627-41 is the only known SGR with a transient X-ray counterpart. After a single bursting episode, its persistent X-ray luminosity monotonically decreased from 1998 to 2004 with an overall variation of a factor greater than 20, the largest ever observed in a SGR. We propose to observe again SGR 1627-41 with XMM-Newton EPIC to establish whether the flux has reached a stable level and to obtain the best quality spectrum for a SGR in an unique low luminosity state.

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