Results 31 to 40 of about 3,870 (231)
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, 1997 Traditional HI surveys of optically selected elliptical galaxies are time-consuming, and have a low detection rate. The forthcoming Parkes HI multibeam survey offers the exciting possibility of surveying more than 10,000 nearby elliptical galaxies for HI.
Elaine M. Sadler
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Hot Interstellar Matter in Elliptical Galaxies
, 2010 The physical properties of the hot interstellar matter in elliptical galaxies are directly related with the formation and evolution of elliptical galaxies via star formation episodes, environmental effects such as stripping, infall, and mergers, and ...
Kim D. W., PELLEGRINI, SILVIA
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Gravitational Lensing by Elliptical Galaxies [PDF]
Symposium - International Astronomical Union, 2005 The probability that high-redshift quasars are gravitationally-lensed by intervening galaxies increases rapidly with the cosmological constant, ΩΛ0 (whilst being only weakly dependent on the density parameter, Ωm0), and the low number of lenses observed implies that ΩΛ0 ≲ 0.7 (e.g. Kochanek 1996).
Mortlock, DJ, Webster, RL
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Cluster and field elliptical galaxies at [PDF]
, 2017 Aims. The aim of this work is twofold: first, to assess whether the population of elliptical galaxies in cluster at z ~ 1.3 differs from the population in the field and whether their intrinsic structure depends on the environment where they belong ...
P. Saracco +7 more
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The Hβ Index and the Ages of Old Stellar Systems [PDF]
Journal of Astronomy and Space Sciences, 1998 The Hβ and some metal line indices, such as Mg2, Fe52, Fe53 of single-age and single-metallicity populations are computed based on the method of evolutionary population synthesis, with careful consideration of the variation of the horizontal-branch ...
Seok-Jin Yoon +2 more
doaj
Galaxy Merging and the Fundamental Plane of Elliptical Galaxies [PDF]
, 2006 We present preliminary results of numerical simulations of dissipationless merging of stellar systems, aimed at exploring the consequences of merging between gas free, spheroidal systems. In particular, we study the dynamical and structural characteristics of hierarchical merging between equal mass stellar systems, and we compare the properties of the ...
Nipoti, Carlo +2 more
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The impact of accurate distances to dwarf elliptical galaxies on cosmology
, 2016 The Surface Brightness Fluctuation method has been shown to be a powerful distance indicator for dwarf elliptical galaxies to very low surface brightness levels.
Jerjen, Helmut
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The Manifold of Elliptical Galaxies [PDF]
, 1987 Global properties of elliptical galaxies, such as the luminosity, radius, projected velocity dispersion, projected luminosity density, etc., form a two-dimensional family.
Djorgovski, S., S. Djorgovski
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Equilibrium Figures inside the Dark-Matter Ring and the Shapes of Elliptical Galaxies
Open Astronomy, 2015 We solve the general problem of the theory of equilibrium figures and analyze two classes of liquid rotating gravitating figures residing inside a gravitating ring or torus.
Kondratyev B. P. +2 more
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The habitability of large elliptical galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Based on numbers of stars, supernova rates, and metallicity, a prior study concluded that large elliptical galaxies contain up to 10 000 times more habitable planets than the Milky Way and are thus the ‘cradles of life’. Using the results of their model and taking into account galactic number distributions and supernova rates, I
openaire +2 more sources