4U 1715-390 and NGC 6440 in Outburst

Astronomy and Astrophysics – Astronomy

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X-Ray, Globular Clusters, Neutron Stars, Transients

Scientific paper

RXTE Proportional Counter Array scans of the galactic bulge region have been continuing. The burster in the globular cluster NGC 6440 (MXB 1746-20) appears to be entering outburst. The previous outburst was in October 2001. The 2-10 keV fluxes on May 12.6, 15.6 and 16.1 were 5.4 +/- 1.0, 7 +/- 3 and 21 +/- 1 mCrab, respectively. We appreciate inquiries by J. in 't Zand and R. Wijnands about this source.

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