Constraining the X-ray variability of SGR 0526-66

Details Constraining the X-ray variability of SGR 0526-66 Constraining the X-ray variability of SGR 0526-66

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop..195m&link_type=abstract

XMM-Newton Proposal ID #05053101

Computer Science

Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Sgr 0526-66, Xmm-Newton Proposal 05053101

Scientific paper

SGR0526-66 was the first soft gamma repeater (SGR) to emit a giant flare, suggesting the existence of magnetars, i.e. neutron stars powered by the decay of their extremely strong magnetic field. Since then, very little information has been obtained on this object, mainly because it is the most distant SGR and it has been burst inactive since 1983. However, its persistent X-ray luminosity is surprisingly as high as that of the most active SGRs. We propose to observe SGR0526-66 for 60 ks with XMM in order to get a good quality spectrum and measure its pulsation period. These results, compared to those obtained in 2000 and 2001 with Chandra and XMM, will allow us to check wether the long lasting non-bursting state of SGR0526-66 is characterized by a stable X-ray luminosity, spectrum and period derivative.

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