A detailed X-ray study of the longest-lived nova in outburst, V723 Cas

Details A detailed X-ray study of the longest-lived nova in outburst, V723 Cas A detailed X-ray study of the longest-lived nova in outburst, V723 Cas

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop..144n&link_type=abstract

XMM-Newton Proposal ID #06734901

Physics

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, V723 Cas

Scientific paper

Just two days after the 15th anniversary of the classical nova V723Cas, a 55-ks observation was obtained with XMM in order to study spectral variations through one full orbit. Unfortunately, the last 8ks of the proposed 63ks fell prey to flare activity, and we lost the most relevant phase range 0.9-1.1. These data indicate that the X-ray light curve may follow the same orbital cycle as the OM light curve, but for secure conclusions, the phase minimum needs to be covered and a second cycle is needed. Preliminary analysis of the data show intriguing features in the RGS (e.g., blue-shifted absorption lines) and some weak hard emission in the EPIC. A second full orbit (59.9ks) covered in X-rays yields deeper spectra and more light curve coverage for timing analyses.

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