Confirmation of the cyclotron line at 50 keV from GX 304-1 by Swift/BAT
Abstract
We report the confirmation of the cyclotron absorption feature from GX 304-1 using Swift/BAT data. We collected the BAT survey data (Detector Plane Histograms) from August 12 to August 17 when GX 304-1 was in the BAT field of view. We selected the data when GX 304-1 is the dominant source in the BAT image, and used the mask weighted technique to construct a spectrum. Since we constructed the spectrum using the mask-weighting technique, we only selected the data when GX 304-1 is the dominant source in the BAT image.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- August 2010
- Bibcode:
- 2010ATel.2815....1S
- Keywords:
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- X-ray;
- Binaries;
- Neutron Stars;
- Pulsars;
- Transients