On the displacement of X-ray binaries from star clusters in star-burst galaxies

Abstract

We have modeled the displacement of luminous X-ray binaries from star clusters in star-burst galaxies with an evolutionary population synthesis code developed by Hurley et al. (2000, 2002). In agreement with Kaaret et al. (2004), we find significant spatial offset of X-ray sources from their parent clusters, and the apparent X-ray luminosity vs. displacement correlation can be roughly reconstructed. The correlation is not sensitive to the fundamental properties of the clusters (e.g., initial mass functions of the binary stars) and the kick velocity imparted to the newborn compact stars, except the common envelope parameter. We present the distributions of the main parameters of the current X-ray binaries, which may be used to constrain the models for the formation and evolution of X-ray binaries with future optical observations.

21 pages, 15 figures, 4 tables, MNRAS accepted

References in corpus (7)

• On the Binding Energy Parameter $\lambda$ of Common Envelope Evolution
• The Interaction of Stellar Objects within a Common Envelope
• Populating the Galaxy with low-mass X-ray binaries
• The masses of PSR J1911-5958A and its white dwarf companion
• Formation & evolution of the Galactic bulge: constraints from stellar abundances
• Spectroscopic binaries with components of similar mass
• Populating the Galaxy with pulsars -- II. Galactic dynamics

Cited by in corpus (10)

• Dynamics of stellar black holes in young star clusters with different metallicities - I. Implications for X-ray binaries
• High-mass X-ray binaries in nearby metal-poor galaxies: on the contribution to nebular HeII emission
• Roche-lobe overflow systems powered by black holes in young star clusters: the importance of dynamical exchanges
• On the Common Envelope Efficiency
• dart_board: Binary Population Synthesis with Markov Chain Monte Carlo
• Population synthesis on high-mass X-ray binaries: prospects and constraints from the universal X-ray luminosity function
• Dynamics of massive stellar black holes in young star clusters and the displacement of ultra-luminous X-ray sources
• The Local Environment of Ultraluminous X-ray Sources Viewed by XMM Newton's Optical Monitor
• The X-ray Binary-Star Cluster Connection in Late-Type Galaxies
• The contribution of X-ray binaries to the evolution of late-type galaxies: Evolutionary population synthesis simulations