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A four-hours long burst from Serpens X-1

R. Cornelisse·E. Kuulkers·J. J. M. in 't Zand·F. Verbunt·J. Heise
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Abstract

During a serendipitous observation of the BeppoSAX Wide Field Cameras, a very long Type I X-ray burst was observed from the low mass X-ray binary Serpens X-1. The burst lasted for approximately 4 hours and had an exponential decay time of 69+/-2 min (2-28 keV). The bolometric peak-luminosity is (1.6+/-0.2)x10^38 erg/s and the fluence (7.3+/-1.4)x10^41 erg. The first 'normal' Type I burst was observed 34 days after the superburst. This is in rough agreement with recent predictions for unstable carbon burning in a heavy element ocean.

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R. Cornelisse, E. Kuulkers, J. J. M. in 't Zand, F. Verbunt, J. Heise. 2001-11-14. A four-hours long burst from Serpens X-1. https://doi.org/10.1051/0004-6361%3A20011591

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