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, Harry Desmond
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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
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
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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
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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
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First Gaia dynamical model of the Milky Way disc with six phase space coordinates: a test for galaxy dynamics [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We construct the first comprehensive dynamical model for the high-quality subset of stellar kinematics of the Milky Way disc, with full 6D phase-space coordinates, provided by the Gaia Data Release 2.
M. S. Nitschai +2 more
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A Fresh Look at Narrow-angle Tail Radio Galaxy Dynamics, Evolution, and Emissions [PDF]
Astrophysical Journal, 2019 We present a 3D magnetohydrodynamic study of narrow-angle tail (NAT) radio galaxy (RG) dynamics, including passive cosmic ray electrons. We follow the evolution of a bipolar-jet RG in a persistent crosswind through hundreds of Myr. We confirm traditional
B. O’Neill +3 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
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Evidence for Galaxy Dynamics Tracing Background Cosmology Below the de Sitter Scale of Acceleration [PDF]
, 2017 Galaxy dynamics probe weak gravity at accelerations below the de Sitter scale of acceleration , where c is the velocity of light and H is the Hubble parameter.
M. Putten
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Self-similar galaxy dynamics below the de Sitter scale of acceleration [PDF]
, 2018 Radial accelerations α in galaxy dynamics are now observed over an extended range in redshift that includes model calculations on galactic distributions of cold dark matter (CDM) in ΛCDM.
M. Putten
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