Monitoring the supersoft source state of many optical novae in the core of M 31

Details Monitoring the supersoft source state of many optical novae in the core of M 31 Monitoring the supersoft source state of many optical novae in the core of M 31

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2077p&link_type=abstract

Chandra Proposal ID #08300002, p.1

Physics

Chandra Proposal Id #08300002

Scientific paper

We propose to monitor the M31 core with four 23ks XMM-Newton EPIC and four 20ks Chandra HRC-I observations equally distributed over AO5 to determine the duration of the SSS state of optical novae. Detected sources will be correlated with optical nova positions from the WeCAPP program covering the same area. EPIC will determine the SSS nature of sources using hardness ratios, HRC-I will enable continuous monitoring and separate nova candidates from bright X-ray sources. With a nova rate in the field of ~25/yr and SSS phase sometimes lasting for years we will simultaneously follow many nova light curves. The durations of the nova SSS state will allow us to constrain envelope and WD masses. We will also monitor time variability of ~200 M31 centre X-ray sources (mostly XRBs).

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