Fermi/GBM Detection of 0.467s Pulsation from GRO J1744-28
ATel #5810; Mark H. Finger (USRA), Peter A. Jenke (UAH) and Colleen Wilson-Hodge (NASA/MSFC)
on 24 Jan 2014; 21:38 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Dr. Mark H. Finger (mark.h.finger@nasa.gov)
Subjects: X-ray, Binary, Neutron Star, Pulsar
In response to the MAXI/GSC and Swift/BAT detections (ATel #5790) we conducted pulse searches in two day intervals from January 1 to 22, optimized for the direction of GRO J1744-28. These searches were limited to the frequency range of 2.137-2.146 Hz, which include all previous detections. Significant pulsations were found in the interval of January 19.0-21.0 at 2.1411123(4) Hz with a false detection probability of 1.0E-13, and the interval of January 21.0-23.0 at 2.1411117(4) Hz with a false detection probability of 4.2E-11.
GBM Pulsar Project