754 citations · 1.1k across the 29 of their papers we have counts for
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GW150914: The Advanced LIGO Detectors in the Era of First Discoveries
The LIGO Scientific Collaboration, The Virgo Collaboration
Following a major upgrade, the two advanced detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) held their first observation run between September 2015 and…
Astrophysical motivation for directed searches for a stochastic gravitational wave background
Nairwita Mazumder, Sanjit Mitra, Sanjeev Dhurandhar
The nearby universe is expected to create an anisotropic stochastic gravitational wave background (SGWB). Different algorithms have been developed and implemented to search for iso…
An effectual template bank for the detection of gravitational waves from inspiralling compact binaries with generic spins
P. Ajith, N. Fotopoulos, S. Privitera +3
We report the construction of a three-dimensional template bank for the search for gravitational waves from inspiralling binaries consisting of spinning compact objects. The parame…
FRW Cosmological model with Modified Chaplygin Gas and Dynamical System
Nairwita Mazumder, Ritabrata Biswas, Subenoy Chakraborty
The Friedmann-Robertson-Walker(FRW) model with dynamical Dark Energy(DE) in the form of modified Chaplygin gas(MCG) has been investigated. The evolution equations are reduced to an…
Evolution of the horizons for dark energy universe
Ritabrata Biswas, Nairwita Mazumder, Subenoy Chakraborty
Recent observational evidences of accelerating phase of the universe strongly demand that the dominating matter in the universe is in the form of dark energy. In this work, we stud…
Emergent scenario and different anisotropic models
Sudeshna Mukerji, Nairwita Mazumder, Ritabrata Biswas +1
In this work, Emergent Universe scenario has been developed in general homogeneous anisotropic model and for the inhomogeneus LTB model. In the first case, it is assumed that the m…
Quantum Tunnelling of non-zero mass particle and evolution of the horizon for a static black hole
Ritabrata Biswas, Nairwita Mazumder, Subenoy Chakraborty
In this work, we study Hawking radiation from a general static black hole due to tunnelling of particle having nonzero mass. Hawking temperature has been calculated using both the…
Interacting Holographic Dark Energy at the Ricci scale and Dynamical system
Nairwita Mazumder, Ritabrata Biswas, Subenoy Chakraborty
In this work, we consider homogeneous and isotropic FRW model of the universe, filled with interacting dark matter and dark energy. The dark matter is chosen as usual in the form o…
Quantum tunnelling for Hawking radiation from a dynamical Black Hole
Nairwita Mazumder, Ritabrata Biswas, Subenoy Chakraborty
The paper deals with Hawking radiation related to non-static spherically symmetric black hole. Quantum corrections are incorporated using Hamilton-Jacobi method beyond semi-classic…
Hawking Like radiation from the Dynamic horizon in Lemaitre-Tolman-Bondi Model of the Universe : Quantum Prescription
Ritabrata Biswas, Nairwita Mazumder, Subenoy Chakraborty
Recent progress of black hole thermodynamics due to Hawking radiation has been applied to universal thermodynamics with universe as inhomogeneous LTB model. Hawking-like temperatur…
Hawking-like radiation from the apparent horizon in an FRW Universe : Quantum Corrections
Ritabrata Biswas, Nairwita Mazumder, Subenoy Chakraborty
In this paper we study Hawking-like radiation in a FRW-Universe using semi-classical tunnelling approach and the Hamilton-Jacobi method. Radial null geodesics are used to picture t…
Tunnelling of non-zero mass particles in Hawking radiation from a static Black Hole : Quantum Correction
Nairwita Mazumder, Ritabrata Biswas, Subenoy Chakraborty
The paper deals with Hawking radiation from a general static black hole due to tunnelling of particle having non-zero mass. Due to complicated calculations, quantum corrections are…
Lemaitre-Tolman-Bondi model of the universe and Hawking radiation of a dynamical horizon
Ritabrata Biswas, Nairwita Mazumder, Subenoy Chakraborty
The paper deals with anisotropic spherically symmetric Lemaitre-Tolman-Bondi model of the universe bounded by the apparent horizon. Using Hamilton-Jacobi method for both massive an…
How does Inflation Depend Upon the Nature of Fluids Filling Up the Universe in Brane World Scenario
Sudeshna Mukerji, Ritabrata Biswas, Nairwita Mazumder +1
By constructing different parameters which are able to give us the information about our universe during inflation,(specially at the start and the end of the inflationary universe)…
The generalized second law of thermodynamics and the nature of the Entropy Function
Subenoy Chakraborty, Nairwita Mazumder, Ritabrata Biswas
In black hole physics, the second law of thermodynamics is generally valid whether the black hole is a static or a non-static one. Considering the universe as a thermodynamical sys…
Interacting Three Fluid System and Thermodynamics of the Universe Bounded by the Event Horizon
Nairwita Mazumder, Ritabrata Biswas, Subenoy Chakraborty
The work deals with the thermodynamics of the universe bounded by the event horizon. The matter in the universe has three constituents namely dark energy, dark matter and radiation…
Thermodynamics of Lemaitre-Tolman-Bondi Model
Subenoy Chakraborty, Nairwita Mazumder, Ritabrata Biswas
Here we consider our universe as inhomogeneous spherically symmetric Lemaitre-Tolman-Bondi Model and analyze the thermodynamics of this model of the universe. The trapping horizon…
Unified First Law and Some Comments
Subenoy Chakraborty, Ritabrata Biswas, Nairwita Mazumder
In this small article, unified first law has been analyzed and some results have been deduced from it. The results have been presented in the form of lemmas and some conclusions ha…
Cosmological Evolution Across Phantom Crossing and the Nature of the Horizon
Subenoy Chakraborty, Nairwita Mazumder, Ritabrata Biswas
In standard cosmology, with the evolution of the universe, the matter density and thermodynamic pressure gradually decreases. Also in course of evolution, the matter in the univers…
Accretion of Holographic Dark Energy : Dependency only upon Horizon Radius of Expanding Universe
Ritabrata Biswas, Nairwita Mazumder, Subenoy Chakraborty
In this paper we deal with accretion of dark energy in the holographic dark energy model for a general non-rotating static spherically symmetric black hole. The mass of the black h…
Generalized Second Law of Thermodynamics on the Event Horizon for Interacting Dark Energy
Nairwita Mazumder, Subenoy Chakraborty
Here we are trying to find the conditions for the validity of the generalized second law of thermodynamics (GSLT) assuming the first law of thermodynamics on the event horizon in b…
Scalar-Tensor Theory of Gravity and Generalized Second Law of Thermodynamics on the Event Horizon
Nairwita Mazumder, Subenoy Chakraborty
In blackhole physics, the second law of thermodynamics is generally valid whether the blackhole is a static or a non-static one. Considering the universe as a thermodynamical syste…
The generalized second law of thermodynamics of the universe bounded by the event horizon and modified gravity theories
Nairwita Mazumder, Subenoy Chakraborty
In this paper, we investigate the validity of the generalized second law of thermodynamics of the universe bounded by the event horizon. Here we consider homogeneous and isotropic…
Validity of the Generalized Second Law of Thermodynamics of the Universe Bounded by the Event Horizon in Holographic Dark Energy Model
Nairwita Mazumder, Subenoy Chakraborty
In this letter, we investigate the validity of the generalized second law of thermodynamics of the universe bounded by the event horizon in the holographic dark energy model. The u…