搜索结果: 1-10 共查到“等离子体天体物理学 star formation”相关记录10条 . 查询时间(0.02 秒)
Accretion-regulated star formation in late-type galaxies
Accretion-regulated star late-type galaxies
2010/11/15
We develop a four-phase galaxy evolution model in order to study the effect of accretion of extra-galactic gas on the star formation rate (SFR) of a galaxy. Pure self-regulated star formation of isola...
Fuel Efficient Galaxies: Sustaining Star Formation with Stellar Mass Loss
cosmology theory – galaxies evolution – galaxies formation – stars formation – methods
2010/11/11
We examine the importance of secular stellar mass loss for fueling ongoing star formation in disk galaxies during the late stages of their evolution. For a galaxy of a given stellar mass, we calculate...
Magnetic Diffusion in Star Formation
MHD turbulence waves stars formation ISM clouds ISM magnetic fields
2010/11/10
Magnetic diffusion plays a vital role in star formation. We trace its influence from interstellar cloud scales down to star-disk scales. On both scales, we find that magnetic diffusion can be signific...
Interstellar Turbulence and Star Formation
structure ISM clouds ISM magnetic fields turbulence methods numerical
2010/11/12
We provide a brief overview of recent advances and outstanding issues in simulations of interstellar turbulence, including isothermal models for interior structure of molecular clouds
and larger-scal...
Star formation: statistical measure of the correlation between the prestellar core mass function and the stellar initial mass function
stars formation — stars luminosity function mass function — ISM clouds
2010/11/11
We present a simple statistical analysis of recent numerical simulations exploring the correlation between the core mass function obtained from the fragmentation of a molecular cloud and the stellar m...
New Panoramic View of $^{12}$CO and 1.1 mm Continuum Emission in the Orion A Molecular Cloud. I. Survey Overview and Possible External Triggers of Star Formation
Galaxy Astrophysics (astro-ph.GA)
2011/1/6
We present new, wide and deep images in the 1.1 mm continuum and the $^{12}$CO ($J$=1-0) emission toward the northern part of the Orion A Giant Molecular Cloud (Orion-A GMC). The 1.1 mm data were take...
Active Disk Building in a local HI-Massive LIRG: The Synergy between Gas, Dust, and Star Formation
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2011/1/7
HIZOA J0836-43 is the most HI-massive (M_HI = 7.5x10^10 Msun) galaxy detected in the HIPASS volume and lies optically hidden behind the Milky Way. Markedly different from other extreme HI disks in the...
Star Formation in Extreme Environments: The Effects of Cosmic Rays and Mechanical Heating
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/24
Molecular data of extreme environments, such as Arp 220, but also NGC 253, show evidence for extremely high cosmic ray (CR) rates (10^3-10^4 * Milky Way) and mechanical heating from supernova driven t...
History and modes of star formation in the most active region of the Small Magellanic Cloud, NGC 346
Galaxy Astrophysics (astro-ph.GA)
2010/12/23
We discuss the star formation history of the SMC region NGC 346 based on Hubble Space Telescope images. The region contains both field stars and cluster members. Using a classical synthetic CMD proced...
The LABOCA survey of the Extended Chandra Deep Field South: Two modes of star formation in AGN hosts?
galaxies active galaxies starburst infrared galaxies
2010/3/8
We study the co-existence of star formation and AGN activity in X-ray selected AGN by analyzing stacked 870um submm emission from a deep and wide map of the Extended Chandra Deep Field South, obtained...