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... > Stellar astronomy > Stellar types > Multiple stars > Binary stars > Close binary stars > Interacting binary stars > Semi-detached binary stars > X-ray binary stars > Low-mass x-ray binary stars
... > Stellar astronomy > Stellar types > Multiple stars > Binary stars > Close binary stars > Interacting binary stars > Compact binary stars > X-ray binary stars > Low-mass x-ray binary stars
... > Stellar astronomy > Stellar types > Multiple stars > Binary stars > Close binary stars > Compact binary stars > X-ray binary stars > Low-mass x-ray binary stars

Preferred term

Low-mass x-ray binary stars  

Definition

  • A member of one of the two main classes of X-ray binary systems where one of the components is a neutron star or black hole and the other component a low-mass star with a spectral type A or later. LMXBs mainly emit soft X-rays. The ratio of their optical to X-ray luminosities is less than 0.1. They belong to old stellar populations with ages 5-15 x 10^9 years and are found in globular clusters and in the bulge of our Milky Way galaxy; some are also found in the disk. Hercules X-1 is an example of LMXBs. (en)

Broader concept

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Entry terms

  • LMXB (en)
  • LMXBs (en)
  • Low-mass X-ray binaries (en)

Contributor

Editorial note

URI

http://astrothesaurus.org/uat/939

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