Results 41 to 50 of about 18,545 (191)
Galaxies, 2018 Spiral galaxies are spinning, internally densified objects. The Virial Theorem explains galactic rotation curves via its linkage of the rotation rate to the gravitational self-potential (Ug) and the moment of inertia of oblate spheroids.
Robert E. Criss, Anne M. Hofmeister
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The role of the electric Bond number in the stability of pasta phases
Physics Letters B, 2022 The deformation of nuclei in the neutrons star crust can be modelled by the system of two charged fluids separated by the phase boundary with non-zero surface tension.
Sebastian Kubis, Włodzimierz Wójcik
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Resolving the Formation of Protogalaxies. I. Virialization
, 2007 (Abridged) Galaxies form in hierarchically assembling dark matter halos. With cosmological three dimensional adaptive mesh refinement simulations, we explore in detail the virialization of baryons in the concordance cosmology, including optically thin ...
Begelman M. C. +15 more
core +1 more source
COMPARISON OF OPTICAL AND X-RAY MASS ESTIMATES OF THE CHANDRA GALAXY CLUSTERS AT Z < 0.1
Odessa Astronomical Publications, 2013 We used the optical data taken from SDSS DR7 galaxy and group catalog to determine the optical mass of 37 nearer Chandra galaxy clusters for comparison with the X-ray mass estimates.
Iu. V. Babyk, I. B. Vavilova
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Lower mass normalization of the stellar initial mass function for dense massive early-type galaxies at z ~ 1.4 [PDF]
, 2014 This paper aims at understanding if the normalization of the stellar initial mass function (IMF) of massive early-type galaxies (ETGs) varies with cosmic time and/or with mean stellar mass density Sigma (M*/2\pi Re^2).
Ciocca, F. +5 more
core +2 more sources
From momentum expansions to post-Minkowskian Hamiltonians by computer algebra algorithms
Physics Letters B, 2020 The post-Newtonian and post-Minkowskian solutions for the motion of binary mass systems in gravity can be derived in terms of momentum expansions within effective field theory approaches. In the post-Minkowskian approach the expansion is performed in the
J. Blümlein +4 more
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Pressure Dependence of Liquid Iron Viscosity From Machine‐Learning Molecular Dynamics
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.Abstract We have developed a machine‐learning potential that accurately models the behavior of iron under the conditions of Earth's core. By performing numerous nanosecond scale equilibrium molecular dynamics simulations, the viscosities of liquid iron for the whole outer core conditions are obtained with much less uncertainty.
Kai Luo, Xuyang Long, R. E. Cohen
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“Kepler Harmonies” and conformal symmetries
Physics Letters B, 2019 Kepler's rescaling becomes, when “Eisenhart-Duval lifted” to 5-dimensional “Bargmann” gravitational wave spacetime, an ordinary spacetime symmetry for motion along null geodesics, which are the lifts of Keplerian trajectories.
P.M. Zhang +4 more
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ChemPhysChem, Volume 27, Issue 6, 27 March 2026.The host–guest complexation of a new fluorescent probe called 7‐(diethylamino)‐4‐hydroxyquinoline‐2(1H)‐one (QD) and its inclusion complex with the Cucurbit[7]uril (CB7) macrocycle were studied within a joint experimental and computational study. Confinement alters the photophysical properties of the synthesized quinolinone derivative also offering a ...
Kevin Droguett +4 more
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Methodological Frameworks for Computational Electrocatalysis: From Theory to Practice
Small Methods, Volume 10, Issue 5, 9 March 2026.Computational modeling is widely used to investigate electrocatalytic reactions, yet accurately describing electrochemical interfaces remains challenging. This review outlines theoretical and computational strategies, based on density functional theory, to model reaction thermodynamics, solvation effects, applied bias, and kinetics.
Michele Re Fiorentin +8 more
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