Constraints on the initial conditions of globular clusters

Details Constraints on the initial conditions of globular clusters Constraints on the initial conditions of globular clusters

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.294...47g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 294, p. 47

Astronomy and Astrophysics

Astronomy

15

Globular Clusters, Constraints, Many Body Problem, Magellanic Clouds, Star Formation, Relaxation Time

Scientific paper

N-body simulations are made with a variety of initial conditions, in particular clumpy and flattened distributions, to attempt to constrain the possible initial conditions of globular clusters, using the observations that young LMC globular clusters appear relaxed after only 20 to 40 Myr. It is found that violent relaxation is able to erase most of the initial substructure in only approximately six crossing times. However, initially very clumpy distributions (not greater than about 100 clumps) form clusters that are too concentrated to resemble real globular clusters. Such clusters also often have large clumps in long-lasting (not less than about 30 crossing times) orbits which do not appear in observed cluster profiles. It is also found that even modest amounts of initial flattening produce clusters that are too elliptical to resemble real globular clusters. In such a scenario, cloud-cloud collisions and similar energetic processes would be unlikely to produce sufficiently spherical globular clusters. It is suggested that globular clusters form from roughly spherical initial conditions with star formation occurring either smoothly or in many small clumps.

Affiliated with

Also associated with

No associations

Rating

Constraints on the initial conditions of globular clusters 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 Constraints on the initial conditions of globular clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on the initial conditions of globular clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1226882