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   Articles with "self gravitating" as a keyword



Revisit on two-dimensional self-gravitating kinks: superpotential formalism and linear stability

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recommendations! Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep04(2021)118

Abstract: Self-gravitating kink solutions of a two-dimensional dilaton gravity are revisited in this work. Analytical kink solutions are derived from a concise superpotential formalism of the dynamical equations. A general analysis on the linear stability is… read more here.

Keywords: two dimensional; linear stability; superpotential formalism; self gravitating ... See more keywords

Self gravitating spinning string condensates

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recommendations! Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep07(2024)217

Abstract: In the context of the black hole/string transition, it is useful to produce Euclidean string backgrounds representing hot and self-gravitating strings. We utilise analytical and numerical methods to find a smooth, stationary rotating solution in… read more here.

Keywords: string condensates; self gravitating; spinning string; gravitating spinning ... See more keywords

The instability of viscous self-gravitating protostellar disk affected by density bump

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recommendations! Published in 2017 at "Astrophysics and Space Science"

DOI: 10.1007/s10509-017-3135-7

Abstract: In this work, we study the instability of viscous self-gravitating protostellar disk affected by infalling Low-mass condensations (LMCs) from the envelope of collapsing molecular cloud cores. The infalling low-mass-condensations (LMCs) are considered as density bumps… read more here.

Keywords: disk; density; instability viscous; self gravitating ... See more keywords
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Effect of nonthermality on the perturbation dynamics of self-gravitating complex fluids

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recommendations! Published in 2018 at "Astrophysics and Space Science"

DOI: 10.1007/s10509-018-3445-4

Abstract: The perturbation dynamics of an unbounded nonthermal self-gravitating inhomogeneous viscoelastic system composed of two-component constitutive fluids is theoretically investigated. The role of fluid turbulence, which is a highly nonlinear hydrodynamic vorticity-driven phenomenology, is included via… read more here.

Keywords: nonthermality perturbation; self gravitating; effect nonthermality; perturbation dynamics ... See more keywords

Self-gravitating anisotropic fluids. I: context and overview

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recommendations! Published in 2024 at "General Relativity and Gravitation"

DOI: 10.1007/s10714-024-03289-7

Abstract: This paper is the first in a sequence of three devoted to the formulation of a theory of self-gravitating anisotropic fluids in both Newtonian and relativistic gravity. In this first paper we set the stage,… read more here.

Keywords: gravitating anisotropic; stellar models; self gravitating; paper ... See more keywords

Self-gravitating anisotropic fluid. III: relativistic theory

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recommendations! Published in 2024 at "General Relativity and Gravitation"

DOI: 10.1007/s10714-024-03305-w

Abstract: This is the third and final entry in a sequence of papers devoted to the formulation of a theory of self-gravitating anisotropic fluids in Newtonian gravity and general relativity. In the first paper we placed… read more here.

Keywords: gravitating anisotropic; theory self; relativistic theory; self gravitating ... See more keywords

Approximate analytical solution for the propagation of shock waves in self-gravitating perfect gas via power series method: isothermal flow

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recommendations! Published in 2020 at "Journal of Astrophysics and Astronomy"

DOI: 10.1007/s12036-020-09638-7

Abstract: For the propagation of a shock (blast) in a self-gravitating perfect gas in case of spherical and cylindrical symmetry, an approximate analytical solution is investigated. The shock wave is considered to be a strong one,… read more here.

Keywords: shock; power series; solution; self gravitating ... See more keywords

Flow behind magnetogasdynamic exponential shock wave in self-gravitating gas

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recommendations! Published in 2017 at "International Journal of Non-linear Mechanics"

DOI: 10.1016/j.ijnonlinmec.2016.11.001

Abstract: Abstract The propagation of a cylindrical (or spherical) shock wave driven out by a piston moving with time according to an exponential law, in a self-gravitating ideal gas with azimuthal magnetic field is investigated. The… read more here.

Keywords: field; self gravitating; shock wave; magnetic field ... See more keywords

Analytic growth rate of gravitational instability in self-gravitating planar polytropes

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recommendations! Published in 2018 at "Journal of Fluid Mechanics"

DOI: 10.1017/jfm.2018.837

Abstract: Gravitational instability is a key process that may lead to fragmentation of gaseous structures (sheets, filaments, haloes) in astrophysics and cosmology. We introduce here a method to derive analytic expressions for the growth rate of… read more here.

Keywords: rate gravitational; gravitational instability; self gravitating; growth rate ... See more keywords
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The FRIGG project: From intermediate galactic scales to self-gravitating cores

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recommendations! Published in 2018 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/201731071

Abstract: Abridged. Understanding the detailed structure of the interstellar gas is essential for our knowledge of the star formation process. The small-scale structure of the interstellar medium (ISM) is a direct consequence of the galactic scales… read more here.

Keywords: project intermediate; galactic scales; intermediate galactic; self gravitating ... See more keywords

Self-gravitating matter in stationary and axisymmetric black hole spacetimes

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recommendations! Published in 2024 at "Classical and Quantum Gravity"

DOI: 10.1088/1361-6382/ad828b

Abstract: All black holes (BHs) in nature are expected to be described by the Kerr vacuum solution of general relativity. However, the Kerr BH interior contains several problematic features such as a Cauchy horizon, a curvature… read more here.

Keywords: gravitating matter; matter stationary; stationary axisymmetric; matter ... See more keywords