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Title:
The cooling neutron star in the super-Eddington accretor XTE J1701-462
Authors:
Homan, Jeroen
Publication:
Chandra proposal ID #10400827
Publication Date:
09/2008
Origin:
CXO
Comment:
Chandra proposal ID #10400827
Bibliographic Code:
2008cxo..prop.2577H

Abstract

Observing the cooling of neutron stars that are reheated by accretion provides new insights into neutron star structure. A detailed and efficient study of this cooling requires the use of Chandra. Here we propose to continue our ongoing monitoring campaign of the neutron star binary XTE J1701-462, a unique system that accreted at super- and near Eddington luminosities for more than 1.5 years before recently returning to quiescence. Our goal is to study the cooling of the surprisingly hot neutron star and also the evolution of the enigmatic non-thermal spectral component in unprecedented detail. Our ongoing strategy of frequent observations (every ~2.5 months) is necessary to test the most recent cooling models. We therefore request five ACIS-S observations for a total of 323 ks.
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