4 papers
IceCube PeV neutrinos from heavy dark matter decay with 12 years HESE data
Diptarko Mukherjee, Ashadul Halder, Debasish Majumdar +1
The decay of superheavy dark matter from the early universe may undergo decay via QCD cascades and electroweak cascade to produce neutrinos as one of the decay products. We conside…
Exploring the evolution of structure growth in the universe with field-fluid interactions through dynamical stability analysis
Anirban Chatterjee, Abhijit Bandyopadhyay, Debasish Majumdar
We investigate an interacting quintessence dark energy - dark matter scenario and its impact on structure formation by analyzing the evolution of scalar perturbations. The interact…
Exploring the effects of dark matter - dark energy interaction on cosmic evolution in viscous dark energy scenario
Ashadul Halder, Madhurima Pandey, Rupa Basu +1
We explore the influence of interactions between dark matter (DM) and dark energy (DE) on the cosmic evolution of the Universe within a viscous dark energy (VDE) framework. Moving…
Constraining the parameters of an isolated neutron star using the lensed HI signal at uGMRT
Rupa Basu, Siddhartha Bhattacharyya, Anjan Kumar Sarkar +2
The strength of the HI signal originating from a distant galaxy at a cosmological distance is several orders of magnitude lower than the foreground and background noise and hence i…