XMM-Newton Proposal 02063201

Details XMM-Newton Proposal 02063201 XMM-Newton Proposal 02063201

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..327h&link_type=abstract

XMM-Newton Proposal ID #02063201

Physics

4U 1957+11, Xmm-Newton Proposal 02063201

Scientific paper

We propose XMM-Newton observations of the persistent low-mass X-ray binary 4U 1957+11. This source, which probably contains a black hole primary, is viewed at a high inclination, which allows for a detailed study of the accretion flow. Our aim is to study the geometry and properties of the accretion disk and its extended corona, both on small and large scales, by means of emission and absorption line features. Moreover, combined with simultaneous RXTE obser- vations (which we have been awarded) we will study the broad band spectrum and variability in great detail and put stringent constraints on the presence of a neutron star in this system. Finally, we will search for large scale jets like those recently found in 4U 1755-33, a source very similar to 4U 1957+11.

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