V838 Mon: A Search for X-rays from a Possible Stellar Merger

Details V838 Mon: A Search for X-rays from a Possible Stellar Merger V838 Mon: A Search for X-rays from a Possible Stellar Merger

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop....7k&link_type=abstract

XMM-Newton Proposal ID #05002401

Astronomy and Astrophysics

Astrophysics

Stars, White Dwarfs, Solar System, V838 Mon, Xmm-Newton Proposal 05002401

Scientific paper

V838 Mon is perhaps the most enigmatic and unusual object observed in stellar astrophysics in recent decades. The star underwent an enormous outburst in 2002, resulting in a spectacular system of light echoes whose evolution has been well documented by HST. The cause of the outburst remains the subject of vigorous debate. One possibility is that of a stellar merger. A prediction of this model is that the envelope of the merger remnant should be magnetically active. If so, V838 Mon should be a luminous X-ray source. We propose a 100 ks XMM/EPIC observation that will constrain the merger model for the V838 Mon outburst and will help characterize the young cluster in which V838 Mon resides.

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