XMM-Newton Proposal 03062902

Details XMM-Newton Proposal 03062902 XMM-Newton Proposal 03062902

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..206b&link_type=abstract

XMM-Newton Proposal ID #03062902

Physics

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, V426 Oph, Ls Peg, Xmm-Newton Proposal 03062902

Scientific paper

A surprising result emerged from our analysis of the entire sample of non-magnetic cataclysmic variables (CVs) observed with ASCA. We found two extremely hard systems spectrally distinct from the rest of the sample (V426 Oph & LS Peg). These may be weakly magnetic accretors, but there is no evidence of any periodic variability, the only accepted method of identification. We request XMM-Newton to verify our method of identifying weakly magnetic CVs based on their spectra, by confirming previously uncertain periodicities. In addition, the brightness of V426 Oph will allow us to carry out detailed phase resolved spectroscopy, and search for X-ray reflection and absorption in both. We propose a 30ks observation of V426 Oph, and a 35ks observation of LS Peg.

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