129 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Jadavpur UniversityIN12 papers
- Saha Institute of Nuclear PhysicsIN11 papers
- St Xavier’s CollegeIN7 papers
- Bose InstituteIN5 papers
- St. Xavier's College (Autonomous)5 papers
- The University of OsakaJP4 papers
- Government of West BengalIN3 papers
- Scottish Church CollegeIN3 papers
- F.D. Ovcharenko Institute of Biocolloidal ChemistryUA2 papers
- Gopal Nagar High SchoolIN2 papers
- Indian Institute of Science Education and Research KolkataIN2 papers
- Inter-University Centre for Astronomy and AstrophysicsIN2 papers
8 papers · 1 filter
An investigation on gravitational entropy of cosmological models
Samarjit Chakraborty, Sarbari Guha, Rituparno Goswami
In this paper, we investigate the entropy of the free gravitational field for a given epoch for some well-known isotropic and anisotropic cosmologies. We use the definition of grav…
Estimation of Baryon Asymmetry from Dark Matter Decaying into IceCube Neutrinos
Tista Mukherjee, Madhurima Pandey, Debasish Majumdar +1
The recent results of IceCube Neutrino Observatory include an excess of PeV neutrino events which appear to follow a broken power law different from the other lower energy neutrino…
Addressing -ray emissions from dark matter annihilations in 45 milky way satellite galaxies and in extragalactic sources with particle dark matter models
Ashadul Halder, Shibaji Banerjee, Madhurima Pandey +1
The mass to luminosity ratio of the dwarf satellite galaxies in the Milky Way suggests that these dwarf galaxies may contain substantial dark matter. The dark matter at the dense r…
On the gravitational entropy of accelerating black holes
Sarbari Guha, Samarjit Chakraborty
In this paper we have examined the validity of a proposed definition of gravitational entropy in the context of accelerating black hole solutions of the Einstein field equations, w…
Evolution of FRW universe in variable modified Chaplygin gas model
Samarjit Chakraborty, Sarbari Guha, D. Panigrahi
In this paper we study the evolution of the FRW universe filled with variable modified Chaplygin gas (VMCG). We begin with a thermodynamical treatment of VMCG described by the equa…
A Study of the Dynamics of a new Piecewise Smooth Map
Dhrubajyoti Biswas, Soumyajit Seth, Mita Bor
In this article, we have studied a 1D map, which is formed by combining the two well-known maps i.e. the tent and the logistic maps in the unit interval i.e. [0, 1]. The proposed m…
Mass and Life Time of Heavy Dark Matter Decaying into IceCube PeV Neutrinos
Madhurima Pandey, Debasish Majumdar, Ashadul Halder +1
Considering that the ultrahigh energy (UHE) upgoing muon neutrino events around the PeV energy region observed by the IceCube are due to the decay of super heavy dark matter to neu…
Thermodynamics of FRW Universe With Chaplygin Gas Models
Samarjit Chakraborty, Sarbari Guha
In this paper we have examined the validity of the generalized second law of thermodynamics (GSLT) in an expanding Friedmann Robertson Walker (FRW) universe filled with different v…