2 citations · 3 across the 4 of their papers we have counts for
6 papers · 1 filter
Black Holes in Massive Star Clusters
Steve McMillan, Holger Baumgardt, Simon Portegies Zwart +2
Close encounters and physical collisions between stars in young dense clusters can result in new channels for stellar evolution, and may lead to the formation of very massive stars…
Theoretical and Observational Agreement on Mass Dependence of Cluster Life Times
M. Gieles, H. Baumgardt, N. Bastian +1
Observations and N-body simulations both support a simple relation for the disruption time of a cluster as a function of its mass of the form: t_dis = t_4 * (M/10^4 Msun)^gamma. Th…
Life and Death of Young Dense Star Clusters near the Galactic Center
Simon Portegies Zwart, Stephen McMillan, Holger Baumgardt
We discuss the structural change and degree of mass segregation of young dense star clusters within about 100pc of the Galactic center. In our calculations, which are performed wit…
Dynamics of Intermediate Mass Black Holes in Star Clusters
Holger Baumgardt, Simon Portegies Zwart, Steve McMillan +2
We have followed the evolution of multi-mass star clusters containing massive central black holes by N-body simulations on the GRAPE6 computers of Tokyo University. We find a stron…
Halo enrichment by disrupted globular clusters
H. Baumgardt
We study the evolution of the galactic globular cluster system to determine its initial mass-function and the fraction of halo stars that could have come from disrupted globular cl…
A Comparison of ground-based Cepheid P-L Relations with HIPPARCOS Parallaxes
H. Baumgardt, C. Dettbarn, B. Fuchs +2
The statistical test described by Wielen et al.(1994) is used to derive new zero-points of ground-based Cepheid period-luminosity (PL) and period-luminosity-colour (PLC) relations.…