Crustal cooling in quiescent neutron stars

Details Crustal cooling in quiescent neutron stars Crustal cooling in quiescent neutron stars

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2361c&link_type=abstract

Chandra Proposal ID #09400192

Physics

Chandra Proposal Id #09400192

Scientific paper

We propose a 30 ksec observation of each of the quasi-persistent neutron-star low-mass X-ray transients KS 1731-260 and MXB 1659-29 in quiescence. The long outbursts in both of these sources heated the neutron star crust out of thermal equilibrium with the core. We have tracked the cooling of the neutron star crusts in both objects since they went in quiescence. We have preliminary evidence that the cooling has ceased, perhaps indicating that the crust is in equilibrium with the core. Our proposed observations will test the equilibrium suggestion, by placing tight limits on residual cooling and/or residual accretion, and determine the core temperature, constraining the equation of state of dense matter.

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