Results 1 to 10 of about 3,622,393 (232)
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
semanticscholar +5 more sources
Elliptical Galaxy Dynamics [PDF]
Publications of the Astronomical Society of the Pacific, 1998 ,(a b)/a with a and b the major- and minor-axis lengths. Hubble understood that the observed ellipticity was only a lower limit to the true elongation because of the unknown orientation of a galaxy’s “polar axis”; he called this uncertainty “serious, but
D. Merritt
semanticscholar +4 more sources
Exploring Disk Galaxy Dynamics Using IFU Data [PDF]
, 2008 In order to test the basic equations believed to dictate the dynamics of disk galaxies, we present and analyze deep two-dimensional spectral data obtained using the PPAK integral field unit for the early-type spiral systems NGC 2273, NGC 2985, NGC 3898 ...
A. Aragn-Salamanca +26 more
core +3 more sources
Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation
Open Astronomy, 2010 We present a model of chemical and spectrophotometric evolution of disk galaxies based on a stochastic self-propagating star formation scenario. The model incorporates galaxy formation through the process of accretion, chemical and photometric evolution ...
Mineikis T., Vansevičius V.
doaj +3 more sources
Publications of the Astronomical Society of the Pacific, 1999 D. Merritt, M. Valluri
semanticscholar +2 more sources
The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics [PDF]
Monthly notices of the Royal Astronomical Society, 2021 The kinematic morphology–density relation of galaxies is normally attributed to a changing distribution of galaxy stellar masses with the local environment. However, earlier studies were largely focused on slow rotators; the dynamical properties of the
J. van de Sande +19 more
semanticscholar +1 more source
On the fundamentality of the radial acceleration relation for late-type galaxy dynamics [PDF]
, 2023 Galaxies have been observed to exhibit a level of simplicity unexpected in the complex galaxy formation scenario posited by standard cosmology. This is particularly apparent in their dynamics, where scaling relations display much regularity and little ...
Richard Stiskalek, H. Desmond
semanticscholar +1 more source
Dark Coincidences: Small-Scale Solutions with Refracted Gravity and MOND
Universe, 2023 General relativity and its Newtonian weak field limit are not sufficient to explain the observed phenomenology in the Universe, from the formation of large-scale structures to the dynamics of galaxies, with the only presence of baryonic matter.
Valentina Cesare
doaj +1 more source
Introducing the NEWHORIZON simulation: Galaxy properties with resolved internal dynamics across cosmic time [PDF]
Astronomy & Astrophysics, 2020 Hydrodynamical cosmological simulations are increasing their level of realism by considering more physical processes and having greater resolution or larger statistics.
Y. Dubois +15 more
semanticscholar +1 more source
Heart of darkness: the influence of galactic dynamics on quenching star formation in galaxy spheroids [PDF]
Monthly notices of the Royal Astronomical Society, 2020 Quenched galaxies are often observed to contain a strong bulge component. The key question is whether this reflects a causal connection – can star formation be quenched dynamically by bulges or the spheroids of early-type galaxies?
J. Gensior, J. Kruijssen, B. Keller
semanticscholar +1 more source