XMM-Newton Proposal 02012701

Details XMM-Newton Proposal 02012701 XMM-Newton Proposal 02012701

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop...70h&link_type=abstract

XMM-Newton Proposal ID #02012701

Physics

Cxouj180950.2-23322, Xmm-Newton Proposal 02012701

Scientific paper

The error box of the high-energy gamma-ray source 3EG J1809-2328 contains an X-ray and radio synchrotron nebula emerging from a point X-ray source that is undoubtedly a radio-quiet pulsar. Since the gamma-rays from 3EG J1809-2328 are variable on time scales of months to years, they may be of a qualitatively different origin from the usual magnetospheric emission from rotation-powered pulsars. We propose to discover the pulsations in X-rays in order to evaluate whether the gamma-rays can be powered by the spin-down luminosity of the pulsar. The resulting pulse ephemeris will also be used in conjunction with future GLAST data to determine what fraction of the gamma-rays are pulsed, and what remaining fraction can be powered by "diffuse" mechanisms involving pulsar wind nebulae.

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