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Paper: Populating the Galaxy with Close Be Binaries
Volume: 361, Active OB-Stars: Laboratories For Stellar and Circumstellar Physics
Page: 448
Authors: Kiel, P.D.; Hurley, J.R.; Murray, J.R.; Hayasaki, K.
Abstract: Be/X-ray binaries comprise roughly two-thirds of the high-mass X-ray binaries (HMXBs), which is a class of X-ray binaries that results from the high mass of the companion or donor star (> 10MSolar). Currently the formation and evolution of X-ray producing Be binaries is a matter of great debate. Modeling of these systems requires knowledge of Be star evolution and also consideration of how the evolution changes when the star is in close proximity to a companion. Within this work we complete a full population synthesis study of Be binaries for the Galaxy. The results for the first time match aspects of the observational data, most notably the observed upper limit to the period distribution. We conclude that greater detailed studies on the evolution of Be stars within X-ray binaries needs to be completed, so that rapid binary evolution population synthesis packages may best evolve these systems.
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