Abstract
We report here a search for periodic emission of X rays from MXB1730–335 (the Rapid Burster, which is the most unusual X-ray burst source1 out of about 30 other bursters) during the long flat top bursts2. Two events from the 63 bursts showed clear peaks in the frequency power spectra at ∼0.5 s in period. However, this is unlikely to be a pulsar period, because the periods of these two bursts are different.
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Tawara, Y., Hayakawa, S., Kunieda, H. et al. Discovery of 0.5-s oscillations in long flat top bursts from the Rapid Burster. Nature 299, 38–41 (1982). https://doi.org/10.1038/299038a0
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DOI: https://doi.org/10.1038/299038a0
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