INTEGRAL hard X-ray detection of HMXB GX 304-1 and H 1417-624
Abstract
We report on the first detection of the Be star HMXBs GX 304-1 and H 1417-624 above 20 keV with the IBIS/ISGRI X-ray imager on board INTEGRAL. From 2008-06-24 to 2008-07-09, INTEGRAL performed monitoring observations of the Galactic plane around l=305 degrees for a total exposure time of 352 ksec. GX 304-1 was detected in all spacecraft revolutions, and shows brightening with time. H 1417-624 was detected only in revolution 699 and 700 (2008-07-04 to 2008-07-09).
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- July 2008
- Bibcode:
- 2008ATel.1613....1M
- Keywords:
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- X-ray;
- Request for Observations;
- Binaries;
- Neutron Stars;
- Pulsars;
- Transients