X-ray detection of the old nova DK Lacertae
Abstract
We report the detection of the old nova DK Lacertae with Chandra X-Ray Observatory's ACIS-S CCD imaging spectrometer on 3 February 2015. DK Lacertae, located at (J2000) 22:49:46.970 +53:17:19.66, was discovered in 1950 at a brightness of 6 mag (Bertaud, C., 1950, IAUC, 1254, 1). Chandra detected 92.5 +/- 9.6 net counts from the source at a count rate of 0.0306 +/- 0.0032 c/s over an exposure time of 3025.6 s. No significant variability was observed during the length of the observation.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- January 2016
- Bibcode:
- 2016ATel.8610....1B
- Keywords:
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- Cataclysmic Variable;
- Nova;
- Variables