Monitoring Accreting X‐ray Pulsars with the GLAST Burst Monitor

Abstract:

Accreting pulsars are exceptionally good laboratories for probing the detailed physics of accretion onto magnetic stars. While similar accretion flows also occur in other types of astrophysical systems, e.g. magnetic CVs, only neutron stars have a small enough moment of inertia for the accretion of angular momentum to result in measurable changes in spin‐frequency in a timescale of days. Long‐term monitoring of accreting pulsar spin‐frequencies and fluxes was demonstrated with the Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory. Here we present sample results from BATSE, discuss measurement techniques appropriate for GBM, and estimate the expected GBM sensitivity.

Año de publicación:

2007

Keywords:

Fuente:

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