Zobrazeno 1 - 10
of 37 908
pro vyhledávání: '"matter: energy"'
We analyze traversable wormholes defined by the dynamic line elements that asymptotically approaches Friedmann-Robertson-Walker (FRW) universe. This dynamical wormholes is supported by the galactic dark matter as well as perfect isotropic fluid. We w
Externí odkaz:
http://arxiv.org/abs/2404.18964
Autor:
Lopez-Honorez, Laura
The redshifted 21cm signal from the Cosmic Dawn is expected to provide unprecedented insights into early Universe astrophysics and cosmology. Here, we briefly summarize how decaying dark matter can heat the intergalactic medium before the first galax
Externí odkaz:
http://arxiv.org/abs/2406.15378
Autor:
Datta, Sayak
In this work, we study the impact of the environment around a black hole in detail. We introduce non-vanishing radial pressure in a manner analogous to compact stars. We examine both isotropic and anisotropic fluid configurations with and without rad
Externí odkaz:
http://arxiv.org/abs/2312.01277
Autor:
Dinda, Bikash R.
Publikováno v:
Eur. Phys. J. C (2024) 84:402
In this study, we introduce a novel analytical Gaussian Process (GP) cosmography methodology, leveraging the differentiable properties of GPs to derive key cosmological quantities analytically. Our approach combines cosmic chronometer (CC) Hubble par
Externí odkaz:
http://arxiv.org/abs/2311.13498
Autor:
Büyükşahin, Bahattin1 bahattin.buyuksahin@gmail.com, Robe, Michel A.2 mrobe@richmond.edu
Publikováno v:
Commodities (2813-2432). Jun2024, Vol. 3 Issue 2, p197-224. 28p.
Publikováno v:
Phys. Dark Univ. 44 (2024) 101448
The first order variation of the matter energy-momentum tensor $T_{\mu \nu}$ with respect to the metric tensor $g^{\alpha \beta}$ plays an important role in modified gravity theories with geometry-matter coupling, and in particular in the $f(R,T)$ mo
Externí odkaz:
http://arxiv.org/abs/2301.12133
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Dinda, Bikash R.1,2 (AUTHOR) bikashd18@gmail.com
Publikováno v:
European Physical Journal C -- Particles & Fields. Apr2024, Vol. 84 Issue 4, p1-12. 12p.
Publikováno v:
In Physics of the Dark Universe May 2024 44