24 citations · 71 across the 8 of their papers we have counts for
8 papers
Weak Gravitational Lensing: A Brief Overview
Partha Pratim Basumallick, Saheb Das, Bhaswati Mandal +1
Gravitational lensing constitutes one of the most direct observational manifestations of spacetime curvature and provides a powerful probe of compact astrophysical objects. In this…
Cosmological models with Bounce scenario in f(Q,C)-gravity
Bhaswati Mandal, B. C. Paul
We present a bounce universe in modified gravity considering linear as well as exponential form of gravity. Bounce cosmological models are introduced to remove the singula…
Can spacetime torsion source an extremely red-tilted cosmological GW background?
Arko Bhaumik, Bhaswati Mandal, Soumitra SenGupta
In the presence of spacetime torsion, any generic model of gravity is conformally dual to a scalar-tensor theory augmented with a second rank antisymmetric massless degree o…
Quasar continuum spectrum disfavors black holes with a magnetic monopole charge
Indrani Banerjee, Vijay Shersingh Chawan, Bhaswati Mandal +2
Black holes carrying a magnetic monopole charge are a subject of interest for a long time. In this work we explore the possibility of an observational evidence of such black holes…
Implications of Einstein-Maxwell dilaton-axion gravity from the black hole continuum spectrum
Indrani Banerjee, Bhaswati Mandal, Soumitra SenGupta
String inspired models can serve as potential candidates to replace GR in the high energy regime where quantum gravity is expected to play a vital role. Such models not only subsum…
Signatures of Einstein-Maxwell dilaton-axion gravity from the observed jet power and the radiative efficiency
Indrani Banerjee, Bhaswati Mandal, Soumitra SenGupta
The Einstein-Maxwell dilaton-axion (EMDA) gravity arises in the low energy effective action of the heterotic string theory and provides a simple framework to explore the signatures…
Does black hole continuum spectrum signal f(R) gravity in higher dimensions?
Indrani Banerjee, Bhaswati Mandal, Soumitra SenGupta
Extra dimensions, which led to the foundation and inception of string theory, provide an elegant approach to force-unification. With bulk curvature as high as the Planck scale, hig…
In quest of axionic hairs in quasars
Indrani Banerjee, Bhaswati Mandal, Soumitra SenGupta
The presence of axionic field can provide plausible explanation to several long standing problems in physics such as dark matter and dark energy. The pseudo-scalar axion whose deri…