21 citations · 40 across the 6 of their papers we have counts for
5 papers · 1 filter
Relativistic Electromagnetic Mass Models With Cosmological Variable in Spherically Symmetric Anisotropic Source
R. N. Tiwari, Saibal Ray, Sumana Bhadra
A class of exact solutions for the Einstein-Maxwell field equations are obtained by assuming the erstwhile cosmological constant to be a space-variable scalar, viz., $ Λ=Λ(r)…
Electromagnetic Mass Models in General Theory of Relativity
Sumana Bhadra
"Electromagnetic mass" where gravitational mass and other physical quantities originate from the electromagnetic field alone has a century long distinguished history. In the introd…
Relativistic anisotropic charged fluid spheres with varying cosmological constant
Saibal Ray, Sumana Bhadra, Anand S. Sengupta
Static spherically symmetric anisotropic source has been studied for the Einstein-Maxwell field equations assuming the erstwhile cosmological constant to be a space-variable s…
Classical Electron Model with Negative Energy Density in Einstein-Cartan Theory of Gravitation
Saibal Ray, Sumana Bhadra
Experimental result regarding the maximum limit of the radius of the electron \sim 10^{-16} cm and a few of the theoretical works suggest that the gravitational mass which is a pri…
Energy density in general relativity: a possible role for cosmological constant
Saibal Ray, Sumana Bhadra
We consider a static spherically symmetric charged anisotropic fluid source of finite physical radius (\sim 10^{-16} cm) by introducing a scalar variable Λdependent on the radial c…