X-ray Pulsations in the Supersoft X-ray Binary CAL 83

Details X-ray Pulsations in the Supersoft X-ray Binary CAL 83 X-ray Pulsations in the Supersoft X-ray Binary CAL 83

2005-07-06

arxiv.org/abs/astro-ph/0507145v2

Astron.J.131:600-602,2006

Astronomy and Astrophysics

Astrophysics

revised text; 11 pages and 3 figures; accepted for publication in the Astronomical Journal

Scientific paper

10.1086/498271

X-ray data reveal that the supersoft X-ray binary CAL 83 exhibits 38.4 minute
pulsations at some epochs. These X-ray variations are similar to those found in
some novae and are likely to be caused by nonradial pulsations the white dwarf.
This is the first detection of pulsations in a classical supersoft X-ray
binary.

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