Zobrazeno 1 - 10
of 30
pro vyhledávání: '"B C Paul"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 1, Pp 1-17 (2023)
Abstract Cosmological models with f(R) modified gravity are significant to investigate the present and late-time behavior of the Universe. The dynamics of the Universe is studied in the framework of $$f(R)= R + \gamma R^2- \lambda \left( \frac{R}{3m_
Externí odkaz:
https://doaj.org/article/461c4682042e4a6f9fbe8c1c480b1429
Autor:
A. Chanda, B. C. Paul
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 7, Pp 1-11 (2022)
Abstract We study evolution of primordial black holes (PBH) in the f(Q) modified gravity for matter accretion from the cosmic fluid surrounding the PBH. For matter described by non-linear equation of state $$p=f(\rho )$$ p = f ( ρ ) , the accretion
Externí odkaz:
https://doaj.org/article/b0d29b79b2b34850bbea64d2222b4bf9
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 2, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/18917fb9e3e942f091cd38def1e779c9
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 6, Pp 1-12 (2019)
Abstract We study relativistic solutions of anisotropic compact stars with Finch–Skea (FS) metric in f(T) gravity framework. The modified FS geometry is considered to obtain the equation of state (EoS) for different known stellar objects with given
Externí odkaz:
https://doaj.org/article/ac2954890ef84c42bd57499ef12369bf
Publikováno v:
European Physical Journal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83a185ec09a121a7b643d3bb7b3c14ca
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
European Physical Journal
Cosmological models with f(R) modified gravity are significant to investigate the present and late-time behavior of the Universe. The dynamics of the Universe is studied in the framework of $$f(R)= R + \gamma R^2- \lambda \left( \frac{R}{3m_s^2} \rig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa452818d95c99132fa2c8f27332420a
http://repo.scoap3.org/api
http://repo.scoap3.org/api
We present a flat emergent universe model in modified Gauss–Bonnet gravity in four dimensions. The emergent universe model is free from a big-bang singularity and also describes the observed universe fairly well. It is assumed that the present univ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::580499e583f10b2742377a20283f8184
Publikováno v:
Classical and Quantum Gravity. 40:095009
A non-singular Emergent Universe (EU) scenario within the realm of standard Relativistic physics requires a generalization of the Equation of State (EoS) connecting the pressure and energy density. This generalized EoS is capable of describing a comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::115da930331e531d256d67a2aa47dc17
https://doi.org/10.1088/1361-6382/acc5d7
https://doi.org/10.1088/1361-6382/acc5d7
We investigate both the interacting and non-interacting R\'{e}nyi Holographic Dark Energy (RHDE) models in DGP brane world framework. Cosmological parameters and their evolutions are probed to obtain realistic cosmological models. We note that both t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24720041f3bd55eec374367ff72fb3ca
R\'enyi Holographic Dark Energy (RHDE) Models has been studied in different dimensions considering a flat FRW metric, subsequently exploring the nature of evolution of different cosmological parameters. It is seen that the number of dimensions affect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe5c476412a91ee95cf81b927a148e5b
http://arxiv.org/abs/2111.13935
http://arxiv.org/abs/2111.13935