Merging instability in groups of galaxies with dark matter

Details Merging instability in groups of galaxies with dark matter Merging instability in groups of galaxies with dark matter

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.228..501n&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 228, Sept. 15, 1987, p. 501-511. CONICET-supported rese

Statistics

Computation

16

Computational Astrophysics, Dark Matter, Dynamic Stability, Galactic Clusters, Many Body Problem, Mass Distribution, Boundary Value Problems, Orbital Elements, Velocity Distribution

Scientific paper

A series of N-body experiments are performed to investigate the importance of smoothly distributed dark matter in the merging processes in groups of galaxies. When no background of dark matter is present, a giant central galaxy is found to develop in less than a free fall time, and only galaxies which can acquire escape velocity, and thus leave the system, are able to avoid merging with the giant central galaxy. It is suggested that such a dominant background is actually present if groups of galaxies are older than five crossing times, as is commonly assumed, because systems in which most of the mass is concentrated in the galaxies seem to be largely unstable to merging.

Affiliated with

Also associated with

No associations

Rating

Merging instability in groups of galaxies with dark matter 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 Merging instability in groups of galaxies with dark matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Merging instability in groups of galaxies with dark matter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1676566