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Title:
SAX J1810.8-2609 displays increasing hard X-ray activity
Authors:
Galis, R.; Beckmann, V.; Chenevez, J.; Brandt, S.; Belanger, G.; Kuulkers, E.; Bel, M. Cadolle; Sanchez-Fernandez, C.; Bazzano, A.; Donnarumma, I.; Fiocchi, M.; Natalucci, L.; Götz, D.; Hermsen, W.; Leyder, J.-C.; Piraino, S.; Pottschmidt, K.; Shaposhnikov, N.; Paizis, A.; Sidoli, L.; Tomsick, J.; Walter, R.; Watanabe, K.
Publication:
The Astronomer's Telegram, #1227
Publication Date:
10/2007
Origin:
ATEL
Keywords:
X-ray, Request for Observations, Binaries, Neutron Stars, Transients
Bibliographic Code:
2007ATel.1227....1G

Abstract

The neutron-star LMXB SAX J1810.8-2609 has been frequently observed by INTEGRAL over the last weeks. After the onset of hard X-ray activity as seen by Swift on Aug. 6-9 (ATel#1175), and by INTEGRAL on Aug. 19 (ATel#1185), the source was covered by the Galactic Bulge Monitoring Programme (Kuulkers et al. 2007, A&A 466, 595) and in the INTEGRAL Key Programme of the Galactic Center. The light curve of the last 2 weeks shows a gradual brightening, which peaked on 2007-09-21T06:01 UTC with a source flux of about 83 mCrab and 60 mCrab in the 20-40 keV and 40-80 keV band, respectively.
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