منابع مشابه
Galactic bulge formation as a maximum intensity starburst
Properties of normal galactic star formation, including the density dependence, threshold density, turbulent scaling relations, and clustering properties, are applied to the formation of galactic bulges. One important difference is that the bulge potential well is too deep to have allowed self-regulation or blow-out by the pressures from young stars, unlike galactic disks or dwarf galaxies. As ...
متن کاملBulge Formation
The currently discussed theories of bulge formation are reviewed, including the pri-mordial scenario, where bulges form rapidly and then accrete disks, the secular scenario, where bulges are formed by dynamical evolution of disks through bars and galaxy interactions , and some combinations of both, where formation of bulges and disks are more continuous and interleaved. The various scenarios ma...
متن کاملStar Formation in Starburst Galaxies
Some of the basic properties of star formation in starburst galaxies are reviewed. I discuss triggering and termination mechanisms in starbursts and provide estimates of star-formation rates. Galaxies with ongoing star formation at low and high redshift are compared.
متن کاملStar Cluster Formation in Extreme Starburst Environments
The currently available empirical evidence on the star formation processes in the extreme, high-pressure environments induced by galaxy encounters, mostly based on high-resolution Hubble Space Telescope imaging observations, strongly suggests that star cluster formation is an important and perhaps even the dominant mode of star formation in the starburst events associated with galaxy interactio...
متن کاملThe formation history of the Galactic bulge
The distributions of the stellar metallicities of K giant stars in several fields of the Galactic bulge, taken from the literature and probing projected Galactocentric distances of ∼ 500 pc to ∼ 3 kpc, are compared with a simple model of star formation and chemical evolution. Our model assumes a Schmidt law of star formation and is described by only a few parameters that control the infall and ...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1993
ISSN: 0074-1809
DOI: 10.1017/s0074180900123769