Results 261 to 270 of about 3,529,940 (309)

Generation and characterization of a Cre-inducible MAP3K1 gain-of-function model.

Dis Model Mech
Xiao B, Mongan M, Ko CI, Hu YC, DeFalco T, Greis KD, Xia Y.   +6 more
europepmc   +1 more source

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Introduction to Stellar Dynamics

2021
The study of stellar dynamics is experiencing an exciting new wave of interest thanks to observational campaigns and the ready availability of powerful computers. Whilst its relevance includes many areas of astrophysics, from the structure of the Milky Way to dark matter halos, few texts are suited to advanced students.
L. Ciotti
openaire   +2 more sources

Stellar dynamics

2023
The stellar dynamics of virialised systems is analysed within the search of undamped oscillations. In the case of a time-dependent Hamiltonian qualified after a generic Terzic'-Kandrup potential, the Emrakov-Lewis-Leach invariant is specified; as a result, an infinite set of conservation laws defining constants of motion is demonstrated to be obtained.
Orchidea Maria Lecian, Brunello Tirozzi
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Internal Dynamics and Stellar Content of Nine Ultra-diffuse Galaxies in the Coma Cluster Prove Their Evolutionary Link with Dwarf Early-type Galaxies

Astrophysical Journal, 2019
Ultra-diffuse galaxies (UDGs) are spatially extended, low surface brightness stellar systems with regular elliptical-like morphology found in a wide range of environments.
I. Chilingarian, A. Afanasiev, K. Grishin, D. Fabricant, S. Moran   +4 more
semanticscholar   +1 more source

The Vlasov–Poisson System for Stellar Dynamics in Spaces of Constant Curvature

, 2015
We obtain a natural extension of the Vlasov–Poisson system for stellar dynamics to spaces of constant Gaussian curvature $${\kappa \ne 0}$$κ≠0: the unit sphere $${\mathbb S^2}$$S2, for $${\kappa > 0}$$κ>0, and the unit hyperbolic sphere $${\mathbb H^2 ...
F. Diacu, S. Ibrahim, C. Lind, Shengyi Shen   +3 more
semanticscholar   +1 more source

Stellar dynamic spectroscopy

Solar Physics, 1987
The dynamic spectrum, a three dimensional record of the radio intensity as a function both of time and frequency, has long been used as a probe of plasma processes in the solar corona. Beginning with the work of Wild and McCready (1950) dynamic spectroscopy has been used to distinguish between the multitude of radio wave emitting phenomena which occur ...
T. S. Bastian, G. A. Dulk, J. A. Bookbinder   +2 more
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The Dynamics of Stellar Jets

Astrophysics and Space Science, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Raga, A. C., Cantó, J., D'Alessio, P.
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Collisionless Stellar Dynamics

Astrophysics and Space Science, 1971
Collisionless Stellar Dynamics deals with Stellar Systems for times small with respect to the relaxation time. Thus it disregards completely individual encounters between stars. Our basic equation is the collisionless Boltzmann equation $$ \frac{{\partial f}}{{\partial t}} + \bar v \cdot \frac{{\partial f}}{{\partial \bar x}} - \frac{{\partial V}}{{
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Statistical Hypotheses in Stellar Dynamics

Physical Review, 1946
This paper starts with a short review of the usual methods of stellar dynamics and analyzes the underlying hypotheses. The most successful approach to stellar dynamics has been the one which neglects interactions between nearby stars (because they are weak) and takes into consideration the motion of stars in a smooth field of force only, produced by ...
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Stellar Dynamics and Molecular Dynamics: Possible Analogies

2003
In stellar dynamics one is accostumed to deal with the Lynden-Bell distribution, which presents two peculiar characteristics: a) it resembles the quantum Fermi-Dirac distribution, and b) describes a state of metaequilibrium, that is expected to evolve on much longer time scales to a standard Maxwell-Boltzmann equilibrium.
A. Carati, L. Galgani
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