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Hard X-rays emitted by starbursts as predicted by population synthesis models including a realistic fraction of interacting binaries
J. Van Bever and
Received 27 August 1999 / Accepted 15 December 1999
We combine our close binary population number synthesis code with the formation mechanism of X-radiation in young supernova remnants and in high mass X-ray binaries, to predict the hard X-ray luminosity emitted by starbursts. We demonstrate that the impact of interacting binaries is substantial. Therefore, observations of hard X-rays with energies larger than 2 keV of starburst regions may highlight the importance of close binary evolution in understanding properties of active starformation regions.
Key words: stars: binaries: close ISM: supernova remnants galaxies: starburst galaxies: stellar content X-rays: stars
Send offprint requests to: J. Van Bever
Online publication: June 8, 2000