Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Das, Shyam"'
We present a model of compact astrophysical object under General Theory of Relativity using the anisotropic extension of Tolman IV solution. The anisotropy function, derived from the model, remains well behaved throughout the interior of the star. Th
Externí odkaz:
http://arxiv.org/abs/2201.10772
Publikováno v:
In Nuclear Physics, Section B August 2024 1005
Autor:
Das, Shyam, Ray, Saibal, Khlopov, Maxim, Parida, Bikram Keshari, Chakraborty, Koushik, Pal, Shyamal Kumar
Publikováno v:
In Chinese Journal of Physics August 2024 90:474-493
Autor:
Das, Shyam1 (AUTHOR), Chakraborty, Koushik2 (AUTHOR), Rahaman, Farook3 (AUTHOR) rahaman@associates.iucaa.in, Majumder, Shreya4 (AUTHOR)
Publikováno v:
European Physical Journal C -- Particles & Fields. May2024, Vol. 84 Issue 5, p1-14. 14p.
Autor:
Govender, Megandhren1 (AUTHOR) megandhreng@dut.ac.za, Das, Shyam2 (AUTHOR)
Publikováno v:
European Physical Journal C -- Particles & Fields. Apr2024, Vol. 84 Issue 4, p1-13. 13p.
Publikováno v:
In New Astronomy May 2024 108
Anisotropy is one factor that appears to be significantly important in the studies of relativistic compact stars. In this paper, we make a generalization of the Buchdahl limit by incorporating an anisotropic effect for a selected class of exact solut
Externí odkaz:
http://arxiv.org/abs/2106.08156
Publikováno v:
Annals of Physics 433 (2021) 168597
In this paper, we develop a new class of models for a compact star with anisotropic stresses inside the matter distribution. By assuming a linear equation of state for the anisotropic matter composition of the star we solve the Einstein field equatio
Externí odkaz:
http://arxiv.org/abs/2102.07099
This work introduces a novel epidemiological model that simultaneously considers multiple viral strains, reinfections due to waning immunity response over time and an optimal control formulation. This enables us to derive optimal mitigation strategie
Externí odkaz:
http://arxiv.org/abs/2101.08137
A class of solutions of Einstein field equations satisfying Karmarkar embedding condition is presented which could describe static, spherical fluid configurations, and could serve as models for compact stars. The fluid under consideration has unequal
Externí odkaz:
http://arxiv.org/abs/2012.14147