Open AccessX-Ray Pulsations in the Supersoft X-Ray Binary CAL 83
Author(s) -
P. C. Schmidtke,
A. P. Cowley
Publication year - 2006
Publication title -
the astronomical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.61
H-Index - 271
eISSN - 1538-3881
pISSN - 0004-6256
DOI - 10.1086/498271
Subject(s) - white dwarf , astrophysics , binary number , physics , x ray , x ray binary , astronomy , neutron star , stars , optics , mathematics , arithmetic
X-ray data reveal that the supersoft X-ray binary CAL 83 exhibits 38.4 minutepulsations at some epochs. These X-ray variations are similar to those found insome 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-raybinary.Comment: revised text; 11 pages and 3 figures; accepted for publication in the Astronomical Journa
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