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搜索结果: 1-15 共查到理学 Elliptical Galaxies相关记录16条 . 查询时间(0.078 秒)
Elliptical galaxies comprise primarily old stars, which collectively generate a long-lasting feedback via stellar mass-loss and Type Ia SNe. This feedback can be traced by X-ray-emitting hot gas in an...
The evolutionary properties of the old metal-rich Galactic open cluster NGC6791 are assessed, based on deep UB photometry and 2Mass JK data. For 4739 stars in the cluster, bolometric luminosity and ef...
The ISM evolution of elliptical galaxies experiencing feedback from accretion onto a central black hole was studied recently with high-resolution 1D hydrodynamical simulations including radiative heat...
The UV Upturn in Elliptical galaxies and Environmental Effects     Elliptical  galaxies  Environmental  Effects       font style='font-size:12px;'> 2011/9/26
It is suspected that the ultraviolet (UV) upturn phenomenon in elliptical galaxies and extended horizontal-branch stars in globular clusters have a common origin. An extremely high abundance of helium...
It is suspected that the ultraviolet (UV) upturn phenomenon in elliptical galaxies and extended horizontal-branch stars in globular clusters have a common origin. An extremely high abundance of helium...
Intrinsic Shapes of Very Flat Elliptical Galaxies     Intrinsic Shapes  Flat Elliptical Galaxies       font style='font-size:12px;'> 2011/1/11
Photometric data from the literature is combined with triaxial mass models to derive variation in the intrinsic shapes of the light distribution of elliptical galaxies NGC 720, 2768 and 3605. The infe...
The existence of hot, X-ray luminous gaseous coronae surrounding present day L? galaxies is a generic prediction of galaxy formation theory in the cold dark matter cosmogony. While extended X-ray em...
Dwarf elliptical galaxies are the most common galaxy type in nearby galaxy clusters, yet they remain relatively poorly studied objects and many of their basic properties have yet to be quantified. In ...
A possible interpretation of slow rotators as nonrotating at all and elongated due to negative anisotropy parameters, instead of flattened due to positive anisotropy parameters, is exploited. Finally,...
Stellar populations in elliptical galaxies of compact groups
Two Scenarios for the Formation of Cuspy Density Profiles in Elliptical Galaxies
First Results of Metallicity Gradients in Elliptical Galaxies
Stellar Populations in Galaxies:Progress on The Milky Way, on Dwarf Irregulars, and on Elliptical Galaxies
WHY THERE ARE NO ELLIPTICAL GALAXIES MORE FLATTENED THAN E7. THIRTY YEARS LATER。
In this paper the problem of the phenomenological modelling of elliptical galaxies using various available observational data is presented. Recently, Tortora, Cardona and Piedipalumbo (2007) suggest...

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