Search for millisecond periodic pulsations in BATSE gamma-ray bursts

Details Search for millisecond periodic pulsations in BATSE gamma-ray bursts Search for millisecond periodic pulsations in BATSE gamma-ray bursts

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aipc..428..216d&link_type=abstract

Fourth Huntsville gamma-ray burst symposium. AIP Conference Proceedings, Volume 428, pp. 216-220 (1998).

Computer Science

Gamma-Ray Sources, Gamma-Ray Bursts, Gamma-Ray

Scientific paper

We present the results of searches for periodic pulsations in gamma-ray bursts detected by the Burst And Transient Source Experiment (BATSE) aboard the Compton Gamma Ray Observatory. A total of 20 bright bursts are examined. The durations of the TTE data used range from 0.065 s to 1.048 s. These data either cover the onset of a very bright burst or the whole short burst. The photon arrival data are time-tagged with a time resolution of 2 μs. We examined various energy channels and time segments in the data for pulsations with Fast Fourier Transforms. The periods searched cover the range from 0.016 to 33.3 ms. We find no significant evidence for periodic pulsations in the above range, and the upper limits for the pulsations are presented in terms of statistical probabilities and pulsed fractional amplitudes.

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