The wake of a body moving through a stellar distribution

Details The wake of a body moving through a stellar distribution The wake of a body moving through a stellar distribution

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..384s&link_type=abstract

In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J

Astronomy and Astrophysics

Astronomy

Dense Stellar Systems

Scientific paper

We calculate the change in density within a uniform distribution of field stars which is caused by a dense body plunging through with a constant velocity. Starting with the simplest case in which the field stars are initially stationary this leads to an infinite density along the axis of the wake. Introducing a small thermalisation within the field stars removes this infinity whilst leading to similar results off the path of the dense body. Results are in good agreement with those previously derived.
A uniform approximation can be made for the density in the thermalised case and this can be used to deduce the force exerted on the moving star due to the drag caused by the accretion wake.

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