Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13q.385l&link_type=abstract
In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J
Astronomy and Astrophysics
Astronomy
Dense Stellar Systems
Scientific paper
We have performed N-body simulations to study the tidal tails of the Galactic globular clusters. The Galactic potential in our model is contributed by central bulge outer halo and exponetial disk. These components are assumed to be invariant in time in the frame. We investigate the cluster of multi-mass models with a power-law initial mass functions starting with different initial masses initial number of particles and different galactocetric distances as well as ellipticities of orbit. We have examined the general evolution of the clusters the shape of outer parts of the clusters density porfiles and the direction of tidal tails. We also have performed the wide field CCD photometry of two Galactic globular clusters (M92 and NGC 7492) to examine the dynamical status of the clusters. The observations were made with the 3.6 m Canada-France-Hawaii Telescope (CFHT) using CFH12K camera. The effects of the dynamical evolution of the cluster have been investigated by means of a completeness-corrected luminosity function and mass funtion and radial density profile and surface density map.
Lee Hyung Mok
Lee Kang Hwan
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