Recent Chandra and Swift Observations of New X-ray Transients in M31
Abstract
We report recent observations of M31 taken with Chandra/ACIS-I on 2009-05-29.1 UT and with Swift/XRT on 2009-06-07.08 UT. In the 4ks Chandra/ACIS-I image, we found a faint transient located at R.A.(J2000)=00h42m26.7s, Decl. (J2000)=+41:13:46.5 with a 90% absolute error of 0.6 arcsec. It is therefore identified as CXOM31 J004226.7+411346. The unbinned energy spectrum can be fit (using C statistic) with an absorbed power-law model (Gamma=2.1, N_H fixed at 7e20 cm^-2).
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- June 2009
- Bibcode:
- 2009ATel.2074....1K
- Keywords:
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- X-ray;
- Binaries;
- Black Holes;
- Transients