Results 21 to 30 of about 662,695 (314)
The orientation of elliptical galaxies [PDF]
Astrophysics and Space Science, 2010 We determine the orientations of the light distribution of individual elliptical galaxies by combining the profiles of photometric data from the literature with triaxial models. The orientation is given by a Bayesian probability distribution. The likelihood of obtaining the data from a model is a function of the parameters describing the intrinsic ...
D. K. Chakraborty, A. K. Diwakar
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SUPERNOVA SWEEPING AND BLACK HOLE FEEDBACK IN ELLIPTICAL GALAXIES [PDF]
, 2015 Most of the massive elliptical galaxies in the universe stopped forming stars billions of years ago, even though plenty of hot gas remains available for star formation.
G. Voit +5 more
semanticscholar +1 more source
Galaxies, 2022 The observed Tully-Fisher and Faber-Jackson laws between the baryonic mass of galaxies and the velocity of motion of stars at the edge of galaxies are explained within the framework of the model of accretion of galaxies around supermassive black holes ...
Nick Gorkavyi
doaj +1 more source
Isolated elliptical galaxies in the local Universe [PDF]
, 2015 We have studied a sample of 89 very isolated, elliptical galaxies at z < 0.08 and compared their properties with elliptical galaxies located in a high-density environment such as the Coma supercluster.
I. Lacerna +4 more
semanticscholar +1 more source
FOSSIL EVIDENCE FOR THE TWO-PHASE FORMATION OF ELLIPTICAL GALAXIES [PDF]
Astrophysical Journal, 2013 Massive early-type galaxies (ETGs) have undergone dramatic structural evolution over the last 10 Gyr. A companion paper shows that nearby elliptical galaxies with M* ⩾ 1.3 × 1011M☉ generically contain three photometric subcomponents: a compact inner ...
Song Huang +17 more
semanticscholar +1 more source
On the ellipticity of galaxy clusters [PDF]
Proceedings of the International Astronomical Union, 2004 We analysed 246 scanned ACO clusters and we do not find any dependence of galaxy cluster ellipticity on redshift.
J. Krywult, Monika Biernacka, Piotr Flin
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THE DRAGONFLY NEARBY GALAXIES SURVEY. II. ULTRA-DIFFUSE GALAXIES NEAR THE ELLIPTICAL GALAXY NGC 5485 [PDF]
, 2016 We present the unexpected discovery of four ultra-diffuse galaxies (UDGs) in a group environment. We recently identified seven extremely low surface brightness galaxies in the vicinity of the spiral galaxy M101, using data from the Dragonfly Telephoto ...
A. Merritt +6 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 In this paper, we present the simple, one-step, self-consistent, and fast resonance scattering model rsapec based on the AtomDB database. This model can be used as an alternative to the commonly used APEC model for fitting X-ray spectra with optically ...
Priyanka Chakraborty +4 more
doaj +1 more source
The origin of cold gas in giant elliptical galaxies and its role in fuelling radio-mode AGN feedback [PDF]
, 2013 The nature and origin of the cold interstellar medium (ISM) in early-type galaxies are still a matter of debate, and understanding the role of this component in galaxy evolution and in fuelling the central supermassive black holes requires more ...
Norbert Werner +15 more
semanticscholar +1 more source
Gravitational Lensing by Elliptical Galaxies [PDF]
Symposium - International Astronomical Union, 2002 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).
Rachel L. Webster +2 more
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