38 citations · 133 across the 21 of their papers we have counts for
21 papers
Viscous Dark Energy and Mass-Varying Dark Matter in Lyra Manifold: Cosmological Dynamics and Observational Constraints
Giridhari Deogharia, Madhurima Pandey, Ashadul Halder
We investigate the cosmological dynamics of a universe described by Lyra's geometry in the presence of dark energy (DE) and dark matter (DM). Dark energy is modeled as a quintessen…
Bridging the Gap Between Virtual and Physical Laboratories: A Web-Based Interactive Platform for Undergraduate Physics Practicals
Ashadul Halder, Shibaji Banerjee
The COVID-19 pandemic highlighted the challenges of maintaining hands-on laboratory instruction in undergraduate physics education. In response, we developed and deployed an intera…
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 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…
Compact objects and dark matter dynamics in astroparticle physics
Ashadul Halder
The quark star is such an exotic star of our Universe. The limiting mass for quark stars essentially depends on rotational frequency apart from bag constant and other fundamental p…
Future deceleration due to backreaction in a Universe with multiple inhomogeneous domains
Ashadul Halder, Shashank Shekhar Pandey, A. S. Majumdar
We formulate a model of spacetime with inhomogeneous matter distribution in multiple domains. In the context of the backreaction framework using Buchert's averaging procedure, we e…