Measuring the Spin-down of Two Nearby Isolated Neutron Stars

Details Measuring the Spin-down of Two Nearby Isolated Neutron Stars Measuring the Spin-down of Two Nearby Isolated Neutron Stars

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop...74k&link_type=abstract

XMM-Newton Proposal ID #05522101

Computer Science

Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Rx J0806.4-4123, Xmm-Newton Proposal Id #05522101

Scientific paper

The nearest thermally emitting neutron stars arguably offer the best prospects for measuring neutron star radii, but this task is complicated by our lack of knowledge about their magnetic field strengths, which hinders modeling of their spectra. Recently, we have determined field strengths for two objects using dedicated X-ray timing observations: by measuring spin-down and assuming a dipole field, we find magnetic fields between normal pulsars and magnetars. We propose to complete this sample with timing observations of the two remaining objects in this class with clear periodicities: RX J0420.0-5022 and RX J0806.4-4123. This will provide vital, model-independent constraints to aid in interpreting the mysterious absorption features found in their X-ray spectra.

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