Unveiling the nature of cyclic behavior in the period evolution of XTEJ1810-197

Details Unveiling the nature of cyclic behavior in the period evolution of XTEJ1810-197 Unveiling the nature of cyclic behavior in the period evolution of XTEJ1810-197

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...43b&link_type=abstract

XMM-Newton Proposal ID #06710602

Physics

Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Xtej 1810-197, Xtej 1810-197

Scientific paper

The program is aimed at obtaining a phase-coherent timing solution for the period evolution of XTEJ1810-97 (XTE),continuing the successful X-ray monitoring of this unique Anomalous X-ray Pulsar (AXP).XTE is a transient magnetar, a neutron star (NS) whose quiescent emission is likely due to the decay of an extremely strong magnetic field (10e15 G).Previous analysis suggested a long term precession (2100 d) of the source spin axis.The pointings we request are aimed at studying the period evolution of XTE and prove the long term precession.XTE could be a unique precessing Magnetar (overall, only 3 precessing NSs are known).The effective presence of long-term precession could shed light on the physical properties of the NS crust/core, thus, on the physical properties of extremely high density matter

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