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Paper: Hydrogen Deficient Donors in Low-Mass X-ray Binaries
Volume: 391, Hydrogen-Deficient Stars
Page: 273
Authors: Nelemans, G.
Abstract: A number of X-ray binaries (neutron stars or black holes accreting from a companion star) have such short orbital periods that ordinary, hydrogen rich, stars do not fit in. Instead the mass-losing star must be a compact, evolved star, leading to the transfer of hydrogen deficient material to the neutron star. I discuss the current knowledge of these objects, with focus on optical spectroscopy.
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