Results 101 to 110 of about 3,870 (231)
THE CARNEGIE-IRVINE GALAXY SURVEY. III. THE THREE-COMPONENT STRUCTURE OF NEARBY ELLIPTICAL GALAXIES
, 2013 Motivated by recent developments in our understanding of the formation and evolution of massive galaxies, we explore the detailed photometric structure of a representative sample of 94 bright, nearby elliptical galaxies, using high-quality optical images
Huang, Song +4 more
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A simple model of spiral galaxies from geometric optics
AIP AdvancesWe propose a simple model of spiral galaxies based on the interference of gravitational waves. The interference is deduced from geometric optics analysis of the refractive index profiles that mimic the behavior of gravitational potentials −1/r and r2. We
Bogdan Szafraniec, James N. Blake
doaj +1 more source
THE ELLIPTICITIES OF GALAXIES IN GALAXY CLUSTERS OF DIFFERENT MORPHOLOGICAL TYPE
Odessa Astronomical Publications, 2014 The distribution of galaxy ellipticities was analyzed for 207 rich PF galaxy clusters found in the Munster Red Sky Survey Galaxy Catalogue. Clusters with BM types from a comparison with the ACO catalogue were also classified on the new scheme.
E. A. Panko, P. Flin
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Secondary evolution of galaxies investigated by N-body simulations
, 2008 In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
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The Outer Halos of Elliptical Galaxies [PDF]
, 2010 Recent progress is summarized on the determination of the density distributions of stars and dark matter, stellar kinematics, and stellar population properties, in the extended, low surface brightness halo regions of elliptical galaxies. With integral field absorption spectroscopy and with planetary nebulae as tracers, velocity dispersion and rotation ...
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Chaos in elliptical galaxies [PDF]
Here I present a review of the work done on the presence and effects of chaos in elliptical galaxies plus some recent results we obtained on this subject.
Muzzio, Juan Carlos
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Model colour-magnitude diagrams of elliptical galaxies
, 2007 Context. Formation and evolution of elliptical galaxies are still matters of debate. Knowledge of their star formation histories (SFHs) is essential to understand the formation mechanism.
C. Ikuta
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Causal Discovery in Astrophysics: Unraveling Supermassive Black Hole and Galaxy Coevolution
The Astrophysical JournalCorrelation does not imply causation, but patterns of statistical association between variables can be exploited to infer a causal structure (even with purely observational data) with the burgeoning field of causal discovery.
Zehao Jin +11 more
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Disks Controlling Chaos in a 3D Dynamical Model for Elliptical Galaxies
Open Astronomy, 2011 A 3D dynamical model with a quasi-homogeneous core and a disk component is used for the chaos control in the central parts of elliptical galaxy.
Zotos Euaggelos E.
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The Elliptical-Spheroidal and Elliptical-Elliptical Galaxy Dichotomies
, 2008 8 pages, 4 figures, requires asp2006.sty, to be published in Galaxy Evolution: Emerging Insights and Future Challenges, ed. S. Jogee et al., Astron. Soc.
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