Star cluster life-times: dependence on mass, radius and environment (2007)
Gieles, Mark, Lamers, Henny, Baumgardt, Holger
The dissolution time (t_dis) of clusters in a tidal field does not scale with the ``classical'' expression for the relaxation time. First, the scaling with N, and hence cluster mass, is shallower due...
Gieles, Mark, Larsen, Soeren, Scheepmaker, Remco, Bastian, Nate, Haas, Marcel, Lamers, Henny
We present the luminosity function (LF) of star clusters in M51 based on HST/ACS observations taken as part of the Hubble Heritage project. The clusters are selected based on their size and with the...
The Star Cluster Population of M51: III. Cluster disruption and formation history (2005)
Gieles, Mark, Bastian, Nate, Lamers, Henny, Mout, Jacqueline
In this work we concentrate on the evolution of the cluster population of the interacting galaxy M51 (NGC 5194), namely the timescale of cluster disruption and possible variations in the cluster...
Lamers, Henny, Gieles, Mark, Bastian, Nate, Baumgardt, Holger, Kharchenko, Nina, Zwart, Simon Portegies
We present a simple analytical description of the disruption of star clusters in a tidal field, which agrees excellently with detailed N-body simulations. The analytic expression can be used to...
Stagnation and Infall of Dense Clumps in the Stellar Wind of tau Scorpii (1999)
Howk, J. Christopher, Cassinelli, Joseph, Bjorkman, Jon, Lamers, Henny
Observations of the B0.2V star tau Scorpii have revealed unusual stellar wind characteristics: red-shifted absorption in the far-ultraviolet O VI resonance doublet up to +250 km/s, and extremely hard...