Fermi/GBM detection of pulsations from IGR J18179-1621

Details Fermi/GBM detection of pulsations from IGR J18179-1621 Fermi/GBM detection of pulsations from IGR J18179-1621

Mar 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012atel.3961....1f&link_type=abstract

The Astronomer's Telegram, #3961

Astronomy and Astrophysics

Astronomy

X-Ray, Binary, Neutron Star, Pulsar

Scientific paper

We detected in GBM data the 11.82 s pulsations of IGR J18179-1621 discovered by J. P. Halpern (ATel #3949) in the Swift XRT data. In the data of February 20-23 we detected a pulsation with a barycentric frequency of 84.5896(4) mHz and an r.m.s. amplitude of 5.9 +- 1.3 mCrab in the 12-25 keV band. For February 24-27 we detected pulsation at 84.5908(3) mHz with an r.m.s. amplitude of 8.5 +- 1.3 mCrab in the the same band.

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