XMM-Newton Proposal 02026801

Details XMM-Newton Proposal 02026801 XMM-Newton Proposal 02026801

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..142w&link_type=abstract

XMM-Newton Proposal ID #02026801

Physics

Ks 1731-260, Xmm-Newton Proposal 02026801

Scientific paper

We propose to observe the quasi-persistent neutron-star low-mass X-ray binaries KS 1731-260 and MXB 1659-29 once in their quiescent state during Cycle 3 of XMM-Newton. These observations will strongly constrain the time evolution behaviour of the quiescent properties of those systems. In the context of the cooling neutron star model for the quiescent emission in neutron star X-ray transients, our proposed observations will follow the cooling time of the crust and core of the neutron stars in those systems. Our previous XMM-Newton and Chandra observations of both systems have already shown that the crusts of the neutron stars in both systems cooled down rapidly, setting stringent constraints on the structure of the neutron stars.

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