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Dynamical evolution of star clusters with top-heavy IMF
- Source :
- Proceedings of the International Astronomical Union. 14:447-450
- Publication Year :
- 2019
- Publisher :
- Cambridge University Press (CUP), 2019.
-
Abstract
- Several observational and theoretical studies suggest that the initial mass function (IMF) slope for massive stars in globular clusters (GCs) depends on the initial cloud density and metallicity, such that the IMF becomes increasingly top-heavy with decreasing metallicity and increasing the gas density of the forming object. Using N-body simulations of GCs starting with a top-heavy IMF and undergo early gas expulsion within a Milky Way-like potential, we show how such a cluster would evolve. By varying the degree of top-heaviness, we calculate the dissolution time and the minimum cluster mass needed for the cluster to survive after 12 Gyr of evolution.<br />Comment: 4 pages, 2 figures, Accepted for publication in Proceedings of the International Astronomical Union
- Subjects :
- Physics
Initial mass function
010308 nuclear & particles physics
Metallicity
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Computational Physics (physics.comp-ph)
Astrophysics - Astrophysics of Galaxies
01 natural sciences
Stars
Star cluster
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
Globular cluster
0103 physical sciences
Cluster (physics)
Physics - Computational Physics
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
Subjects
Details
- ISSN :
- 17439221 and 17439213
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Proceedings of the International Astronomical Union
- Accession number :
- edsair.doi.dedup.....354a2fdc48753b263242d45437caf4ea
- Full Text :
- https://doi.org/10.1017/s174392131900704x