Results 1 to 10 of about 242 (146)
Fundamental Plane of Elliptical Galaxies in f(R) Gravity: The Role of Luminosity [PDF]
Atoms, 2018 The global properties of elliptical galaxies are connected through the so-called fundamental plane of ellipticals, which is an empirical relation between their parameters: effective radius, central velocity dispersion and mean surface brightness within ...
Vesna Borka Jovanović +3 more
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The Fate of Cannibalized Fundamental‐Plane Elliptical Galaxies [PDF]
The Astrophysical Journal, 1997 Evolution and disruption of galaxies orbiting in the gravitational field of a larger cluster galaxy are driven by three coupled mechanisms: (1) tidal heating due to its time-dependent motion in the primary; (2) mass loss due to the tidal strain field; and (3) orbital decay.
Martin D. Weinberg
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Effect of the environment on the fundamental plane of elliptical galaxies [PDF]
Astronomy & Astrophysics, 2002 We present an analysis of interacting E/S0 galaxies location on the Fundamental Plane. Using the NEMO package, we performed N-body simulations of close encounters and mergers between two spherical galaxies. We followed how structural and dynamical parameters (central density, half-mass radius and velocity dispersion)of galaxies are changed during the ...
E. A. Evstigneeva +2 more
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MERGERS IN GALAXY GROUPS. II. THE FUNDAMENTAL PLANE OF ELLIPTICAL GALAXIES [PDF]
The Astrophysical Journal, 2015 Observations consistently show that elliptical galaxies follow a tight "fundamental plane" scaling relation between size, mean surface brightness and velocity dispersion, with the form $R \propto ^{a} ^{b}$. This relation not only has very small (<0.05 dex) intrinsic scatter, but also has significantly different coefficients from the expected ...
Dan S. Taranu +2 more
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MOND and the fundamental plane of elliptical galaxies [PDF]
, 2003 It is shown that the MOdified Newtonian Dynamics (MOND) explains the tilt of the fundamental plane of elliptical galaxies without the need of non-baryonic dark matter. Results found for elliptical galaxies extends to globular clusters and galaxy clusters, showing that MOND agrees with observations over 7 order of magnitude in acceleration.
R. Scarpa
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Dissipationless mergers of elliptical galaxies and the evolution of the fundamental plane [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 We carry out numerical simulations of dissipationless major mergers of elliptical galaxies using initial galaxy models that consist of a dark matter halo and a stellar bulge with properties consistent with the observed fundamental plane. By varying the density profile of the dark matter halo (standard NFW versus adiabatically contracted NFW), the ...
Michael Boylan-Kolchin +2 more
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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 ...
Carlo Nipoti +2 more
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Galaxy merging, the fundamental plane of elliptical galaxies and the MBH -- 0 relation [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 We explore the effects of dissipationless merging on the Fundamental Plane of elliptical galaxies by using a N-body code based on a new, high performance numerical scheme (Dehnen 2002). We investigate the two extreme cases of galaxy growth by equal mass merging and accretion of small stellar systems; in a subset of simulations we also consider the ...
Carlo Nipoti, P. Londrillo, Luca Ciotti
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GRAPE-SPH chemodynamical simulation of elliptical galaxies -- II. Scaling relations and the fundamental plane [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 Accepted for publication in MNRAS.
Chiaki Kobayashi
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The fundamental plane of elliptical galaxies with modified Newtonian dynamics [PDF]
Monthly Notices of the Royal Astronomical Society, 2000 The modified Newtonian dynamics (MOND), suggested by Milgrom as an alternative to dark matter, implies that isothermal spheres with a fixed anisotropy parameter should exhibit a near perfect relation between the mass and the fourth power of the velocity dispersion.
R. H. Sanders
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