X-ray identification of the prenova of V2491 Cyg

Details X-ray identification of the prenova of V2491 Cyg X-ray identification of the prenova of V2491 Cyg

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atel.1473....1i&link_type=abstract

The Astronomer's Telegram, #1473

Astronomy and Astrophysics

Astronomy

19

X-Ray, Binaries, Novae, Transients, Variables

Scientific paper

We report on the possible X-ray counterpart to the prenova of the recently discovered bright nova, V2491 Cyg (IAUC #8934, CBET #1334). The last Swift observation of the prenova field before the outburst was on UT 2008 Jan 2 for an exposure of 5.6 ksec. We find a source in the XRT field of view at a position of (J2000.0) RA = 19h43m02.1s, Dec = +32d19'12.8", with an uncertainty of 4.1", with a net count rate of about 0.021 cts/ s.

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