Results 11 to 20 of about 6,993,200 (327)
Galaxy Dynamics in Clusters [PDF]
The Astrophysical Journal, 1995 We use high-resolution simulations to study the formation and distribution of galaxies within a cluster that forms hierarchically. We follow both dark matter and a gas component that is subject to thermal pressure, shocks, and radiative cooling.
C. Frenk +3 more
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Dynamics of Companion Galaxies of Early-type Galaxies [PDF]
The Astrophysical Journal, 2020 Abstract We estimated the dynamical masses of 115 early-type galaxies (ETGs) by analyzing the dynamics of satellite and companion galaxies of these ETGs. We selected galaxies with absolute magnitudes between −22 and −25 in the K s -band from the Extragalactic Distance Database. We
Cheng-Yu Chen, Chorng-Yuan Hwang
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Dynamics of barred galaxies [PDF]
Reports on Progress in Physics, 1993 Some 30% of disc galaxies have a pronounced central bar feature in the disc plane and many more have weaker features of a similar kind. Kinematic data indicate that the bar constitutes a major non-axisymmetric component of the mass distribution and that the bar pattern tumbles rapidly about the axis normal to the disc plane.
Sellwood, J. A., Wilkinson, A.
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The Galaxy platform for accessible, reproducible and collaborative biomedical analyses: 2022 update. [PDF]
, 2022 Galaxy is a mature, browser accessible workbench for scientific computing. It enables scientists to share, analyze and visualize their own data, with minimal technical impediments.
Galaxy Community,
core +3 more sources
Publications of the Astronomical Society of the Pacific, 1999 D. Merritt, M. Valluri
semanticscholar +2 more sources
DYNAMICAL FRICTION IN CUSPIDAL GALAXIES [PDF]
The Thirteenth Marcel Grossmann Meeting, 2015 Dynamical friction is the process responsible for matter transport toward the inner regions of galaxies in form of massive objects, like intermediate mass black holes, globular clusters and small satellite galaxies. While very bright galaxies show an almost flat luminosity profile in the inner region, fainter ones have, usually, a peaked, cuspidal ...
M. Arca Sedda +1 more
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DYNAMICAL FRICTION IN CUSPY GALAXIES [PDF]
The Astrophysical Journal, 2014 In this paper we treat the problem of the dynamical friction decay of a massive object moving in an elliptical galaxy with a cuspidal inner distribution of the mass density. We present results obtained by both self-consistent, direct summation, N-body simulations, as well as by a new semi-analytical treatment of dynamical friction valid in such cuspy ...
ARCA SEDDA, MANUEL +1 more
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Revealing the dynamical behavior of stars in a prolate or oblate elliptical galaxy
Results in Physics, 2023 We consider the motion of a test particle (star) on the meridian plane (R,z) of an elliptical galaxy with an additional central nucleus component. The shape of the elliptical galaxy can be either prolate or oblate, or even spherical by simply changing ...
Eman M. Moneer +2 more
doaj +1 more source
Reducing biases on H0 measurements using strong lensing and galaxy dynamics: results from the eagle simulation [PDF]
, 2017 Cosmological parameter constraints from observations of time-delay lenses are becoming increasingly precise. However, there may be significant bias and scatter in these measurements due to, among other things, the so-called mass-sheet degeneracy.
A. Tagore +6 more
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Made-to-measure modelling of observed galaxy dynamics [PDF]
, 2017 Amongst dynamical modelling techniques, the made-to-measure (M2M) method for modelling steady-state systems is amongst the most flexible, allowing non-parametric distribution functions in complex gravitational potentials to be modelled efficiently using ...
J. Bovy, D. Kawata, J. Hunt
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