S316p.35 — Galactic Star Cluster mass evolution. High performance star by star simulations. Observations vs. modeling.

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Aug 10th at 6:00 PM until 7:30 PM

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Author(s): Peter Berczik2, Andreas Just1, Andreas Ernst1, Rainer Spurzem2

Institution(s): 1. Astronomisches Rechen-Institut, 2. National Astronomical Observatories of China, Chinese Academy of Sciences

We carry out the large set of Galactic Star Cluster simulations (from 1e2 up to 5e5 Msol initial masses) using our high performance parallel direct N-body code phi-GRAPE+GPU with the maximum possible numerical resolution (one particle one star) on the largest astrophysical GPU clusters (in Germany and China). Our main goal was to investigate the cluster initial volume "filling" factor to the process of the cluster mass loss as well us the cluster whole lifetime. We also investigate the evolution of the present day Cluster Mass Function in solar cylinder depending on the initial parameters of the star formation, Initial Cluster Mass Function and the star clusters masses and initial "filling" factors.

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