Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atel.1390....1o&link_type=abstract
The Astronomer's Telegram, #1390
Astronomy and Astrophysics
Astronomy
1
X-Ray, Novae
Scientific paper
Marina Orio and Thomas Nelson report that the M31 nova 2005-09 c (Quimby et al. 2005, ATel 600, and Hatzidimitriou et al., A&A 464, 1075) is detected as a luminous supersoft X-ray source (SSS) in an archival XMM exposure taken 10 months after the optical maximum of this nova, on 2006-06-28, with a count rate 0.0100±0.0018 cts/s in the 0.15-1 keV range. Despite the poor signal to noise, no significant counts above the background are measured above 0.8 keV and the spectrum is consistent with a blackbody with luminosity 2.5-3 × 10({37) erg/s, blackbody temperature T 60 eV and column density N(H)>=1.3 10(21) cm(-2) .
Nelson Thomas
Orio Marina
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