Results 101 to 110 of about 1,549,906 (171)

Signatures of non-metricity on dynamical analysis of isotropic cosmological models

Nuclear Physics B
The characteristics of compact stars are examined in this study utilizing the Kohler-Chao-Tikekar and Tolman IV spacetime models. This study is framed within the f(Q) gravity, a geometric theory of gravity where spacetime curvature is describe by the non-
Tayyab Naseer, M. Sharif, M. Waqas, Kottakkaran Sooppy Nisar, Mohammed Zakarya   +4 more
doaj   +1 more source

Collisions and particle dynamics around black holes surrounded by PFDM in STVG

European Physical Journal C: Particles and Fields
Testing dark matter effects on gravity around black holes in the framework of gravity theories through observational data is an essential task of relativistic astrophysical studies.
Isomiddin Nishonov, Javlon Rayimbaev, Saeed Ullah Khan, Muhammad Zahid, Temurmalik Tolibjanov, Inomjon Ibragimov   +5 more
doaj   +1 more source

More on the first-order thermodynamics of scalar-tensor and Horndeski gravity. [PDF]

Eur Phys J C Part Fields, 2023
Faraoni V, Houle J.
europepmc   +1 more source

Stability Properties of Geometrothermodynamic Cosmological Models. [PDF]

Entropy (Basel), 2023
Beissen N, Abishev M, Khassanov M, Aitassov T, Mamatova S, Toktarbay S.   +5 more
europepmc   +1 more source

Cosmological analogies for geophysical flows, Lagrangians, and new analogue gravity systems. [PDF]

Eur Phys J C Part Fields, 2023
Faraoni V, Jose S.
europepmc   +1 more source

Geometry of static w = - 1 / 5 perfect fluid spheres in general relativity. [PDF]

Eur Phys J C Part Fields, 2022
Fazlpour B, Banijamali A, Faraoni V.
europepmc   +1 more source

Exact non-static cylindrical solutions of Einstein's field equations with imperfect fluids. [PDF]

PLoS One
Hussain T, Farhan M, Mostafa H, Shezan SA, Amin N, Alsisi RH, Ahmad N.   +6 more
europepmc   +1 more source

Fully Well-Balanced Methods for Schwarzschild-Euler Equation in Gullstrand-Painlevé Coordinates. [PDF]

J Sci Comput
Pimentel-García E, Santos-Pérez S, Cordero-Carrión I, Parés C.   +3 more
europepmc   +1 more source

Scalar field as a perfect fluid: thermodynamics of minimally coupled scalars and Einstein frame scalar-tensor gravity. [PDF]

Eur Phys J C Part Fields, 2023
Faraoni V, Giardino S, Giusti A, Vanderwee R.   +3 more
europepmc   +1 more source

General Relativistic Hydrodynamics in Discrete Spacetime: Perfect Fluid Accretion onto Static and Spinning Black Holes [PDF]

We study the problem of a spherically-symmetric distribution of a perfect relativistic fluid accreting onto a (potentially spinning) black hole within a fully discrete spacetime setting. This problem has previously been studied extensively in the context
Gorard, Jonathan
core   +1 more source