EXOSAT observations of the 1983 outburst of the rapid burster - A new mode of behaviour

Details EXOSAT observations of the 1983 outburst of the rapid burster - A new mode of behaviour EXOSAT observations of the 1983 outburst of the rapid burster - A new mode of behaviour

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...176...69b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 176, no. 1, April 1987, p. 69-74.

Astronomy and Astrophysics

Astronomy

24

Bursts, Exosat Satellite, Spaceborne Astronomy, X Ray Sources, Emission Spectra, Light Curve, Line Spectra, Modal Response

Scientific paper

The results of three observations of the rapid burster (MXB 1730-335) made in August 1983 are reported. A new mode of behavior consisting of strong persistent emission at a level of about 5 microJY along with type I bursts recurring approximately every 80 minutes, is reported. No type II bursts were seen during this interval. The spectrum of the persistent emission was similar to that seen from other burst sources. The ratio of the persistent intensity to the contemporaneous time-averaged type I burst intensity (alpha), was about 50. Eleven days later, the source had reverted to its rapid (type II) bursting mode, with no evidence for persistent emission. The intensity of the persistent emission on August 15 was a factor of 2.2 higher than the time-averaged type II burst intensity found 11 days later. During the early part of its activity in August 1983, the emission from the rapid burster closely resembled that of other burst sources.

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