50 citations · 122 across the 9 of their papers we have counts for
5 papers · 1 filter
Some new class of Chaplygin Wormholes
F. Rahaman, M. Kalam, K. A. Rahman
Some new class of Chaplygin wormholes are investigated in the framework of a Chaplygin gas with equation of state , . Since empty spacetime () do…
Particle Motion Around Tachyon Monopole
M. Kalam, F. Rahaman, S. Mondal
Recently, Li and Liu have studied global monoole of tachyon in a four dimensional static space-time. We analyze the motion of massless and massive particles around tachyon monopole…
Gravitational lensing by stable C-field wormhole
F. Rahaman, M. Kalam, S. Chakraborty
It has been recently shown that Hoyle-Narlikar's C-field theory admits wormhole geometry. We derive the deflection angle of light rays caused by C-field wormhole in the strong fiel…
Non static Global monopole in Lyra geometry
F. Rahaman, R. Mondal
A class of non static solutions around a global monopole resulting from the breaking of a global S0(3) symmetry based on Lyra geometry are obtained. The solutions are obtained usin…
Non static cosmic strings in Lyra geometry
Farook Rahaman
The gravitational field of both local and global non static cosmic strings in the context of Lyra geometry are investigated. Local strings are characterized by having an energy mom…