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astro-ph2005
Observational evidence for a truncation of the star cluster initial mass function at the high mass end
Mark Gieles, Soeren Larsen, Remco Scheepmaker +3
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…
astro-ph2005
Hierarchical Star Formation in M51: Star/Cluster Complexes
Nate Bastian, Mark Gieles, Yuri N. Efremov +1
We report on a study of young star cluster complexes in the spiral galaxy M51. Recent studies have confirmed that star clusters do not form in isolation, but instead tend to form i…
astro-ph1999
On the nature of the bi-stability jump in the winds of early-type supergiants
Jorick S. Vink, Alex de Koter, Henny J. G. L. M. Lamers
We study the origin of the observed bi-stability jump in the terminal velocity of the winds of supergiants near spectral type B1. To this purpose, we have calculated a grid of wind…