Orbit Evolution of Satellite Galaxies in Dark Matter Haloes

Details Orbit Evolution of Satellite Galaxies in Dark Matter Haloes Orbit Evolution of Satellite Galaxies in Dark Matter Haloes

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iaus..220..463j&link_type=abstract

International Astronomical Union Symposium no. 220, held 21 - 25 July, 2003 in Sydney, Australia. Eds: S. D. Ryder, D. J. Pisano

Astronomy and Astrophysics

Astronomy

Scientific paper

We investigate the effect of the inhomogeneity of the background distribution on dynamical friction. We find a generalised Coulomb logarithm with position dependent maximum impact parameter scaling with the local scale length, which is usually much smaller than the distance to the centre of the background system. We apply the new formula to N-body calculations of satellite galaxies in Dark Matter haloes and find a systematic improvement of the orbit fits. Additionally a first order force not parallel to the motion of the massive object appears, which can be neglected at least in spherical systems due to the lack of a secular effect.

Affiliated with

Also associated with

No associations

Rating

Orbit Evolution of Satellite Galaxies in Dark Matter Haloes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Orbit Evolution of Satellite Galaxies in Dark Matter Haloes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orbit Evolution of Satellite Galaxies in Dark Matter Haloes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1012686