The ejection of runaway massive binaries

M. Virginia McSwain, Scott M. Ransom, Tabetha S. Boyajian, Erika D. Grundstrom, Mallory Roberts

Research output: Contribution to journalArticle


The runaway O-type stars HD 14633 and HD 15137 are both SB1 systems that were probably ejected from the open cluster NGC 654. Were these stars dynamically ejected by close gravitational encounters in the dense cluster, or did the binaries each receive a kick from a supernova in one member? We present new results from our investigation of the optical, X-ray, and radio properties of these binary systems to discuss the probable ejection scenarios. We argue that these binaries may have been ejected via dynamical interactions in the dense cluster environment.

Original languageEnglish (US)
Pages (from-to)313-315
Number of pages3
JournalProceedings of the International Astronomical Union
Issue numberS240
Publication statusPublished - Aug 1 2006



  • Binaries: spectroscopic
  • Pulsars: general
  • Stars: early-type
  • Stars: individual (HD 14633, HD 15137)
  • Stars: kinematics
  • Stars: winds
  • X-rays: binaries

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Aerospace Engineering

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