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New outburst of the transient X-ray pulsar GRO J1008-57 detected by INTEGRAL

ATel #647; S. A. Grebenev (IKI, Moscow), G. De Cesare (IASF/CNR, Rome), J. Chenevez (DNSC, Copenhagen), A. Paizis (ISDC, Geneva/IASF, Milano), W. Hermsen (SRON, Utrecht), C. Winkler (ESA/ESTEC, Noordwijk), R. Diehl (MPE, Garching), A. Domingo Garau (LAEFF, Madrid)
on 2 Nov 2005; 15:01 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: S.A.Grebenev (sergei@hea.iki.rssi.ru)

Subjects: Radio, Optical, X-ray, Request for Observations, Neutron Star, Transient, Pulsar

Referred to by ATel #: 653, 1298, 1995, 4759, 7490

The X-ray pulsar GRO J1008-57 was detected in outburst during INTEGRAL Galactic Plane Scan observations performed on October 30, 2005, at 08h-10h UTC. The signal-to-noise ratio for this source was 13.2 in the mosaic image obtained by the IBIS/ISGRI telescope in the 18-45 keV band and the average flux was 31+/-3 mCrab. The spectrum in this energy band is well described by a power law with the photon index 2.5+/-0.5. The source was not confidently detected above 45 keV.

We encourage follow-up observations of this source at all wavelengths.