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Title:
The cooling neutron star in the super-Eddington accretor XTE J1701-462
Authors:
Homan, Jeroen
Publication:
Chandra proposal ID #11400809
Publication Date:
09/2009
Origin:
CXO
Comment:
Chandra proposal ID #11400809
Bibliographic Code:
2009cxo..prop.2812H

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 successful 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 returning to quiescence. The goal of the Cycle 11 observations is to follow the cooling of the surprisingly hot neutron star in unprecedented detail and possibly catch the moment at which thermal equilibrium is reached; we also study the evolution of the enigmatic non-thermal spectral component. We reduce our sampling to two observations in Cycle 11 and request two 55 ks ACIS-S observations.
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