Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Rej, Pramit"'
Autor:
Rej, Pramit
Publikováno v:
International Journal of Geometric Methods in Modern Physics (2024)
Dark energy is one of the potential strategies for preventing compact objects from gravitationally collapsing into singularities. Because it is the cause of the accelerated expansion of our universe, it has the greatest impact on the cosmos. Thus, it
Externí odkaz:
http://arxiv.org/abs/2404.13538
Autor:
Rej, Pramit, Karmakar, Akashdip
Publikováno v:
The European Physical Journal Plus 139 (8), 686 (2024)
The primary objective of this paper is to develop a well-behaved class of Heintzmann IIa [{\em H. Heintzmann, Z. Physik 228, 489-493 (1969)}] solution in the context of $f(R,\, T)$ gravity. In the $f(R, T)$ framework, the gravitational action include
Externí odkaz:
http://arxiv.org/abs/2404.13643
Autor:
Rej, Pramit
Publikováno v:
Chinese Journal of Physics 89, 174-186 (2024)
The purpose of this work is to investigate some interesting features of a static anisotropic relativistic stellar object composed of two different types of fluid distributions typically termed as quark matter (QM) and ordinary baryonic matter (OBM) t
Externí odkaz:
http://arxiv.org/abs/2403.12522
Publikováno v:
Chinese Journal of Physics 90, 1125-1142 (2024)
Polytropic stars are useful tools for learning about stellar structure without the complexity of comprehensive stellar models. These models rely on a certain power-law correlation between the star's pressure and density. This paper proposes a polytro
Externí odkaz:
http://arxiv.org/abs/2403.03026
Autor:
Karmakar, Akashdip, Rej, Pramit
Publikováno v:
Chinese Journal of Physics, Volume 87, February 2024, Pages 155-173
Hybrid star is the term given to a neutron star with a quark core. Due to a lot of uncertainties in the calculations and compositions of such a high-density system, it is of great interest and a preferred scenario for particle physicists and astrophy
Externí odkaz:
http://arxiv.org/abs/2312.08225
Autor:
Rej, Pramit, Bhar, Piyali
Publikováno v:
New Astronomy, Volume 105, January 2024, 102113
In this work, a new static, non-singular, spherically symmetric fluid model has been obtained in the background of $f(R,\,T)$ gravity. Here we consider the isotropic metric potentials of Durgapal-IV [M.C. Durgapal, J. Phys. A {\bf 15} 2637 (1982)] so
Externí odkaz:
http://arxiv.org/abs/2308.16430
Autor:
Rej, Pramit, Karmakar, Akashdip
Publikováno v:
Eur. Phys. J. C 83 (8), 699 (2023)
The concept of dark energy can be used as a possible option to prevent the gravitational collapse of compact objects into singularities. It affects the universe on the largest scale, as it is responsible for our universe's accelerated expansion. As a
Externí odkaz:
http://arxiv.org/abs/2308.07167
Publikováno v:
Eur. Phys. J. C 83:392 (2023)
In this article, we provide a new model of static charged anisotropic fluid sphere made of a charged perfect fluid in the context of 5D Einstein-Maxwell-Gauss-Bonnet (EMGB) gravity theory. To generate exact solutions of the EMGB field equations, we u
Externí odkaz:
http://arxiv.org/abs/2305.06748
Autor:
Bhar, Piyali, Rej, Pramit
Publikováno v:
New Astronomy 100, 101990 (2023)
The aim of the research is to look into a new solution for isotropic compact stars in the context of the $f(R,\,T)$ theory of gravity. We used the Buchdahl [H.A. Buchdahl, Phys. Rev. {\bf 116} (1959) 1027] metric potentials as input to deal with the
Externí odkaz:
http://arxiv.org/abs/2212.07810
Autor:
Rej, Pramit, Bhar, Piyali
Publikováno v:
International Journal of Geometric Methods in Modern Physics 19(07), 2250104 (2022)
The purpose of our present work is to investigate some new features of a static anisotropic relativistic hybrid compact star composed of strange quark matter (SQM) in the inner core and normal baryonic matter distribution in the crust. Here we apply
Externí odkaz:
http://arxiv.org/abs/2202.11567