Effects of stellar collisions on star cluster evolution and core collapse
arXiv:0710.3062 · doi:10.1017/S1743921308015494
Abstract
We systematically study the effects of collisions on the overall dynamical evolution of dense star clusters using Monte Carlo simulations over many relaxation times. We derive many observable properties of these clusters, including their core radii and the radial distribution of collision products. We also study different aspects of collisions in a cluster taking into account the shorter lifetimes of more massive stars, which has not been studied in detail before. Depending on the lifetimes of the significantly more massive collision products, observable properties of the cluster can be modified qualitatively; for example, even without binaries, core collapse can sometimes be avoided simply because of stellar collisions.
5 pages, 4 figures, Submitted for the IAU symposium, 246 in Capri, Italy
References in corpus (15)
- Evolution of binary stars and the effect of tides on binary populations
- Stellar Collisions During Binary-Binary and Binary-Single Star Interactions
- Monte-Carlo Simulations of Globular Cluster Evolution - I. Method and Test Calculations
- Monte Carlo Simulations of Globular Cluster Evolution. IV. Direct Integration of Strong Interactions
- Evolution of Stellar Collision Products in Globular Clusters - II. Off-axis Collision
- The radial distribution of blue straggler stars and the nature of their progenitors
- Core Formation by a Population of Massive Remnants
- Massive Black Hole Binaries from Collisional Runaways
- Monte Carlo Simulations of Globular Cluster Evolution - II. Mass Spectra, Stellar Evolution and Lifetimes in the Galaxy
- Evolution of Stellar Collision Products in Globular Clusters -- I. Head-on Collisions
- The effect of stellar-mass black holes on the structural evolution of massive star clusters
- Where the Blue Stragglers Roam: Searching for a Link Between Formation and Environment
- Stellar Collisions and Ultracompact X-ray Binary Formation
- Star Clusters with Primordial Binaries: III. Dynamical Interaction between Binaries and an Intermediate Mass Black Hole
- Photometry of the Globular Cluster NGC 5466: Red Giants and Blue Stragglers