Abstract
EXOSAT observations of 2S1254-690 in August 1984 have confirmed the presence of periodic dips in the X-ray intensity. These dips occurred with a period of 3.9 hours and last for about 50 minutes. During individual dips the observed X-ray flux oscillated several times between the quiescent level and an undetectable level on time scales varying from a few seconds to approximately 5 minutes. In addition, a second type one burst has been observed, with characteristics which are very similar to those observed earlier. In this paper we report the results of a 20 hour EXOSAT observation made in 1984 August 6th to 7th, and discuss some properties of the dips and of the burst.
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Courvoisier, T.JL., Parmar, A.N., Peacock, T. (1985). Exosat Results on the X-Ray Burster 2S1254-690. In: Peacock, A. (eds) X-Ray Astronomy in the Exosat Era. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5448-9_38
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DOI: https://doi.org/10.1007/978-94-009-5448-9_38
Publisher Name: Springer, Dordrecht
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