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A new outburst of the Be/X-ray binary GRO J1008-57 detected by Fermi/GBM

ATel #3805; Ascension Camero-Arranz (USRA), Mark Finger (USRA), Peter Jenke (MSFC/NPP), Valerie Connaughton (UAH)
on 12 Dec 2011; 20:45 UT
Credential Certification: Ascension Camero-Arranz (Ascension.Camero@uv.es)

Subjects: Binary, Neutron Star, Transient, Pulsar

Referred to by ATel #: 4319, 4577, 4759, 7490

We report on the detection of pulsations of the Be/X-ray binary GRO J1008-57 in the GBM data from December 9.0-12.0, with a barycenter frequency of 10.6683(3) mHz and a mean 12-50 keV pulsed flux of 7.5 +/-1.0 mCrab r.m.s. This is the first GBM detection since the outburst which began in April 2011 (ATel #3254). MAXI reported on a increase of the X-ray flux for this source on December 5, 2011 (ATel #3796), which we did not detect.

GBM Pulsar Project