Open AccessSearch for millisecond periodicities in type I X‐ray bursts of the Rapid Burster
Author(s) -
Fox D. W.,
Lewin W. H. G.,
Rutledge R. E.,
Morgan E. H.,
Guerriero R.,
Bildsten L.,
Van Der Klis M.,
Van Paradijs J.,
Moore C. B.,
Dotani T.,
Asai K.
Publication year - 2001
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2001.04085.x
Subject(s) - physics , astrophysics , millisecond , limit (mathematics) , astronomy , mathematical analysis , mathematics
We have searched the rising portion of type I X‐ray bursts observed from the Rapid Burster with the Rossi X‐ray Timing Explorer for the presence of periodicities. The 95 per cent confidence upper limit on the average rms variation of near coherent pulsations with a width of ≲1 Hz (in 60–2048 Hz) during the first second of the bursts is <8.8 per cent. We find a possible detection (>98 per cent significance) at 306.5 Hz.