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- Title
HEAO Observations of X-ray bursts from MXB1730-335.
- Authors
HOFFMAN, J. A.; WHEATON, W. A.; PRIMINI, F. A.; CAMPBELL, P.; DOBSON, C. A.; HOWE, S. K.; TSIANG, E. Y.; SCHEEPMAKER, A.; LEWIN, W. H. G.; MATTESON, J. L.; GRUBER, D. E.; PETERSON, L. E.; SWANK, J. H.; BOLDT, E. A.; HOLT, S. S.; ROTHSCHILD, R. E.; SERLEMITSOS, P.
- Abstract
BURST activity was observed1 on 18 March 1978, from MXB1730-335, the rapid burster, from which no activity had been observed a few days earlier2. HEAO 1 was pointed ( + y axis) at the rapid burster from ∼ 18.00-21.00 UT on 31 March 1978. The source was actively bursting in the 'Mode I' pattern3, in which very large type II bursts4 are first followed by a long (several minutes) quiescent period and then by a train of closely spaced, small bursts. Because type I and type II bursts probably have different underlying physical mechanisms4, it is important to study both types over a large energy range. We report here on a search for hard X-ray emission from the rapid burster and on evidence for spectral evolution in the type II bursts.
- Publication
Nature, 1978, Vol 276, Issue 5688, p587
- ISSN
0028-0836
- Publication type
Article
- DOI
10.1038/276587a0