搜索结果: 1-9 共查到“恒星与银河系 metallicity”相关记录9条 . 查询时间(0.198 秒)
Evidence for top-heavy stellar initial mass functions with increasing density and decreasing metallicity
formation mass-functionlatetype globular clusters general top-heavy stellar metallicity
2012/2/23
Residual-gas expulsion after cluster formation has recently been shown to leave an imprint in the low-mass present-day stellar mass function (PDMF) which allowed the estimation of birth conditions of ...
The Galactic dust-to-metals ratio and metallicity using gamma-ray bursts
Gamma-ray burst: general – ISM: abundances – dust, extinction – Galaxy: abundances – X-rays: ISM
2011/10/18
The metallicity and dust-to-metals ratio of the Galaxy are fundamental parameters in understanding the ISM, but there is still uncertainty surrounding these parameters. In this paper, the dust-to-meta...
Reddening and metallicity maps of the Milky Way Bulge from VVV and 2MASS. I.The method and minor axis maps
Galaxy: bulge - ISM: dust, extinction - stars: abundances
2011/10/18
We present a method to obtain reddening maps and to trace structure and metallicity gradients of the bulge using data from the recently started ESO public survey Vista Variables in the Via Lactea (VVV...
Star formation in self-gravitating disks in active galactic nuclei. I. Metallicity gradients in broad line regions
Star formation self-gravitating disks active galactic Metallicity gradients
2011/10/11
It has been suggested that the high metallicity generally observed in active galactic nuclei (AGNs) and quasars originates from ongoing star formation in the self-gravitating part of accretion disks a...
The State of the Gas and the Relation Between Gas and Star Formation at Low Metallicity: the Small Magellanic Cloud
State Relation Between Gas Star Formation Metallicity: Magellanic Cloud
2011/9/30
We compare atomic gas, molecular gas, and the recent star formation rate (SFR) inferred from H-alpha in the Small Magellanic Cloud (SMC). By using infrared dust emission and local dust-to-gas ratios, ...
Analisys of the luminosity-stellar mass-metallicity relation in cosmological simulations
luminosity-stellar mass-metallicity cosmological simulations
2009/6/26
Analisys of the luminosity-stellar mass-metallicity relation in cosmological simulations。
On the High Metallicity Produced by CSNRS。
First Results of Metallicity Gradients in Elliptical Galaxies
Elliptical Galaxies Metallicity Gradients
2009/6/10
First Results of Metallicity Gradients in Elliptical Galaxies。
The Intrinsic High Metallicity of cSNRs。