Results 31 to 40 of about 328,442 (163)
Small deviations from the R[SUP]1/4[/SUP] law, the fundamental plane, and phase densities of elliptical galaxies [PDF]
, 1995 The light profiles of elliptical (E) galaxies are known to display small systematic deviations (0.1-0.2 mag.) from the R/ 4 law. In this paper we show that the senses and amplitudes of these departures can be naturally accounted for by a simple ...
J. Hjorth, Jes Madsen
openalex +3 more sources
Formation of Major Types of Galaxies Based on the Energy Circulation Theory
Reports in Advances of Physical Sciences, 2022 The standard cosmology can answer almost nothing about how the structure of a galaxy is formed. It expects a supermassive black hole at the center and dark matter in the halo to explain the circulation of stars and its velocity.
Shigeto Nagao
doaj +1 more source
Chemie Ingenieur Technik, EarlyView., 2023 Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley +1 more source
The level of photometry is the basic level of the Hungarian galaxy [PDF]
مجلة التربية والعلم, 2007 The photometric and fundamental plane for a sample of early type galaxies(elliptical and lenticular galaxies) which belongs to Virgo cluster have been calculated by fitting the Sersic model ( r1/n-model) to the surface brightness profiles along the major
Mohsen Ali, Saad Younis
doaj +1 more source
Analysis of the escape in systems with four exit channels
Mathematical Methods in the Applied Sciences, Volume 46, Issue 1, Page 1032-1044, 15 January 2023., 2023 In this paper, we have performed a numerical investigation of the escape of a particle from two different dynamical systems with the same number of exit channels. We have chosen specific values of the parameters of the systems so that the openings of the potential well in both systems are approximately of the same size.
Juan F. Navarro +2 more
wiley +1 more source
The Tilt of the Fundamental Plane of Elliptical Galaxies: Dynamical and Structural Effects [PDF]
, 1996 B. Lanzoni, L. Ciotti, A. Renzini
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Possible effects of Hybrid Gravity on stellar kinematics in elliptical galaxies [PDF]
, 2021 We use the Fundamental Plane of Elliptical Galaxies to constrain the so-called Hybrid Gravity, a modified theory of gravity where General Relativity is improved by further degrees of freedom of metric-affine Palatini formalism of $f(\cal R)$ gravity.
arxiv +1 more source
Galactic Structures from Gravitational Radii
Galaxies, 2018 We demonstrate that the existence of a Noether symmetry in f ( R ) theories of gravity gives rise to an additional gravitational radius, besides the standard Schwarzschild one, determining the dynamics at galactic scales.
Salvatore Capozziello +3 more
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The Fundamental Plane of Massive Quiescent Galaxies at z ∼ 2 [PDF]
Astrophysical Journal, 2020 We examine the Fundamental Plane (FP) and mass-to-light ratio (M/L) scaling relations using the largest sample of massive quiescent galaxies at 1.5 < z < 2.5 to date.
M. Stockmann +13 more
semanticscholar +1 more source
Fundamental Plane of BOSS galaxies: correlations with galaxy properties, density field, and impact on RSD measurements [PDF]
, 2020 Fundamental plane of elliptical galaxies can be used to predict the intrinsic size of galaxies and has a number of plausible application to study cosmology and galaxy physics.
Sukhdeep Singh, Byeonghee Yu, U. Seljak
semanticscholar +1 more source