551 citations
- Saha Institute of Nuclear PhysicsIN26 papers
- S.N. Bose National Centre for Basic SciencesIN23 papers
- Indian Institute of Science BangaloreIN18 papers
- Jadavpur UniversityIN14 papers
- University of WarsawPL12 papers
- Centre National de la Recherche ScientifiqueFR11 papers
- University of CalcuttaIN11 papers
- Indian Association for the Cultivation of ScienceIN10 papers
- Indian Institute of Technology BombayIN10 papers
- Institute of Mathematical SciencesIN10 papers
- Indian Institute of Science Education and Research KolkataIN9 papers
- Indian Institute of Technology MadrasIN9 papers
9 papers · 2 filters
Exploring the Co-SIMP dark matter model using the 21-cm signal from the dark ages
Debarun Paul, Sourav Pal, Deepthi Moorkanat +3
The redshifted 21-cm signal from the dark ages offers a powerful probe of cosmological models and the underlying dark matter (DM) microphysics. We investigate deviations from the s…
Tracing Signatures of Modified Gravity in Redshift-Space Galaxy Bispectrum Multipoles: Prospects for Euclid
Sourav Pal, Debanjan Sarkar, Alejandro Aviles
We study the galaxy bispectrum multipoles in the Hu-Sawicki gravity model, where a scalar degree of freedom mediates a fifth force that is screened in high-density environme…
Is Dark Energy an Effective Manifestation of Non-equilibrium Thermodynamics? -- Insights from DESI
Sauvik Bhattacharjee, Sudip Halder, Jaume de Haro +2
We investigate the background cosmological expansion on the onset of cosmological homogeneous matter creation scenario, a dynamical dark matter approach (), and…
Improved Predictions on Higgs-Starobinsky Inflation and Reheating with ACT DR6 and Primordial Gravitational Waves
Md Riajul Haque, Sourav Pal, Debarun Paul
We investigate the implications of recent CMB observations for Higgs-Starobinsky inflationary models and their associated reheating dynamics, utilizing data from ACT DR6, Planck 20…
Axion Dark Matter Archaeology with Primordial Gravitational Waves
Andrew Cheek, Anish Ghoshal, Debarun Paul
We investigate the complementary information to be gained from inflationary gravitational wave (IGW) signals and searches for QCD axion dark matter. We focus on post-inflationary P…
ACT DR6 Insights on the Inflationary Attractor models and Reheating
Md Riajul Haque, Sourav Pal, Debarun Paul
We investigate the observational constraints on -attractor inflationary models and their post-inflationary reheating dynamics in light of the latest CMB data from ACT DR6 combin…