Open AccessSingle star scattering on an open cluster
Author(s) -
Mints A. A.,
Glaschke P.,
Spurzem R.
Publication year - 2007
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2007.11911.x
Subject(s) - physics , stars , open cluster , astrophysics , star cluster , star (game theory) , scattering , cluster (spacecraft) , radial velocity , stellar dynamics , monte carlo method , exponential function , astronomy , optics , statistics , mathematical analysis , mathematics , computer science , programming language
We examine the scattering of single stars from an open star cluster. The probability of the capture of a star by a star cluster is dependent on the velocity and mass of the star, and the stars that are not captured experience a velocity change. For low‐velocity stars there is an exponential decrease of the capture probability with the initial velocity, and the velocity change decreases almost linearly. For high‐velocity stars there is a v −6 dependence for the capture probability, and a v −1 dependence for the velocity change. Analytical estimations, Monte Carlo and full N ‐body simulations are all in good agreement.