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18 papers
High-Energy Neutrino Constraints on memory burdened Bardeen and Kerr Primordial Black Holes
Md Riajul Haque, Suvashis Maity
The quantum memory burden effect can suppress the late-time Hawking evaporation of primordial black holes (PBHs), allowing PBHs below the standard evaporation threshold of approxim…
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 combi…
Precision Analysis for Using Upcoming Multi-band Gravitational Wave Observations
Setabuddin, Md Riajul Haque, Ratna Koley +1
We investigate how multi-band gravitational wave (GW) observations can constrain the uncertainties in the Hubble parameter () using primordial black holes (PBHs) as possible s…
Primordial Black Hole interpretation of the sub-solar merger event S251112cm
Md Riajul Haque, Fabio Iocco, Luca Visinelli
The LIGO-Virgo-KAGRA (LVK) candidate event S251112cm suggests the presence of at least one compact object with sub-solar masses. Since such objects cannot be produced through stand…
Illuminating the dark universe in the multi-messenger era
Philippe Brax, Anne-Christine Davis, Md Riajul Haque +8
The precision era of multi-messenger astronomy, together with modern astrophysical, cosmological, and gravitational wave observations, increasingly points toward the existence of a…
Prospects of Indirect Detection of Dark Matter via Primordial Black Hole Induced Gravitational Waves
Debarun Paul, Md Riajul Haque, Supratik Pal
Primordial black holes (PBHs), produced in the early Universe, can source a stochastic background of induced gravitational waves (GWs) and provide a non-thermal origin for dark mat…