Young Star Clusters: Progenitors of Globular Clusters!?
نویسندگان
چکیده
منابع مشابه
Young star clusters: Progenitors of globular clusters!?
Star cluster formation is a major mode of star formation in the extreme conditions of interacting galaxies and violent starbursts. Young clusters are observed to form in a variety of such galaxies, a substantial number resembling the progenitors of globular clusters in mass and size, but with significantly enhanced metallicity. From studies of the metal-poor and metal-rich star cluster populati...
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We present evidence that some of the compact, luminous, young star clusters recently discovered through images taken with the Hubble Space Telescope (HST) have masses comparable to those of old Galactic globular clusters. The “super star cluster” in the center of the nearby amorphous galaxy NGC 1705 has been observed with high dispersion at optical wavelengths using the HIRES echelle spectrogra...
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IV-N yes RG 715 I 90 min -19 (up to 5 hours) of selected objects through the available Ha and S I1 interference filters which have a useful field of about 2°. The approximate limiting magnitudes for direct plates are quoted in the table. They depend on the seeing; the numbers given are for medium seeing and deeper plates are obtained under excellent conditions. These values may possibly be furt...
متن کاملFormation and Disruption of Globular Star Clusters
In the first part of this article, we review observations of the mass and luminosity functions of young and old star cluster systems. We also review some of the physical processes that may determine the characteristic mass of globular clusters and the form of their mass function. In the second part of this article, we summarize our models for the disruption of clusters and the corresponding evo...
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Turbulence, self-gravity, and cooling convert most of the interstellar medium into cloudy structures that form stars. Turbulence compresses the gas into clouds directly and it moves pre-existing clouds around passively when there are multiple phases of temperature. Selfgravity also partitions the gas into clouds, forming giant regular complexes in spiral arms and in resonance rings and contribu...
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ژورنال
عنوان ژورنال: Highlights of Astronomy
سال: 2005
ISSN: 1539-2996
DOI: 10.1017/s1539299600015987