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- Homi Bhabha National InstituteIN282 papers
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6 papers · 2 filters
Late time acceleration in Brans Dicke Cosmology
S. Sen, A. A. Sen
In this work we have investigated the possibility of having a late time accelerated phase of the universe, suggested by recent supernova observation, in the context of Brans Dicke…
Dissipative Fluid in Brans Dicke theory and late time acceleration
A. A. Sen, S. Sen, S. Sethi
We have investigated the possibility of having a late time accelerated expansion phase for the universe. We have used a dissipative fluid in Brans-Dicke(BD) theory for this purpose…
Circular Cosmic String Loop in Brans-Dicke Theory
A. Barros, A. A. Sen, C. Romero
The gravitational field of a stationary circular cosmic string loop ,externally supported against collapse, is investigated in the context of Brans-Dicke theory in the weak field a…
Self interacting Brans Dicke cosmology and Quintessence
S. Sen, T. R. Seshadri
Recent cosmological observations reveal that we are living in a flat accelerated expanding universe. In this work we have investigated the nature of the potential compatible with t…
Quintessential Inflation with Dissipative fluid
A. A. Sen, Indrajit Chakrabarty, T. R. Seshadri
We have investigated cosmological models with a self-interacting scalar field and a dissipative matter fluid as the sources of matter. Different variables are expressed in terms of…
Nonstatic global string in Brans-Dicke theory
A. A. Sen, N. Banerjee
Gravitational field of a nonstatic global string has been studied in the context of Brans-Dicke theory of gravity. Both the metric components and the BD scalar field are assumed to…