Unveiling the nature of cyclic behavior in the period evolution of the Anomalous X ray Pulsar XTE j1810-197

Details Unveiling the nature of cyclic behavior in the period evolution of the Anomalous X ray Pulsar XTE j1810-197 Unveiling the nature of cyclic behavior in the period evolution of the Anomalous X ray Pulsar XTE j1810-197

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cxo..prop.2821b&link_type=abstract

Chandra proposal ID #11500355

Physics

Scientific paper

This program is aimed at obtaining a phase coherent time solution for the period evolution of XTEJ1810-197 (XTE),and concluding the successful X-ray monitoring of this unique Anomalous X-ray Pulsar (AXP),the first identified transient AXP,a neutron star (NS) whose emission is due to the decay of an extremely high magnetic field (10e15 G).Its transient behavior,outburst flux increase ~100,allowed us to monitor its time properties for 6 years.The source was found to be a bright and highly polarized transient radio pulsar.Important new informations on AXP have been gathered from simultaneous X-ray and radio band observations.The pointings we request are aimed at checking for the presence of precession of its rotation axis.XTE could be the unique precessing AXP(there are only 3 precessing NS)

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