Neutron stars in globular clusters

N. Ivanova*, C. O. Heinke, F. Rasio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Dynamical interactions that occur between objects in dense stellar systems are particularly important for the question of formation of X-ray binaries. We present results of numerical simulations of 70 globular clusters with different dynamical properties and a total stellar mass of 2107 M. We find that in order to retain enough neutron stars to match observations we must assume that NSs can be formed via electron-capture supernovae. Our simulations explain the observed dependence of the number of LMXBs on collision number as well as the large scatter observed between different globular clusters. For millisecond pulsars, we obtain good agreement between our models and the numbers and characteristics of observed pulsars in the clusters Terzan 5 and 47 Tuc.

Original languageEnglish (US)
Pages (from-to)316-320
Number of pages5
JournalProceedings of the International Astronomical Union
Issue numberS246
StatePublished - Sep 2007


  • Binaries: close
  • Globular clusters: general
  • X-rays: binaries

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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