12 citations · 24 across the 9 of their papers we have counts for
9 papers
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…
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…
Axion-Photon Conversion in FLRW with Primordial Magnetic Fields: Explaining the Radio Excess
Setabuddin, Md Riajul Haque, Rajesh Karmakar +1
We explore the possibility of axion-photon conversion as a common origin of two low-frequency anomalies: the isotropic radio excess (ARCADE2) and the deep global 21-cm absorption t…
Primordial Gravitational Waves as Complementary Probe of Dark Matter Indirect Detection
Anish Ghoshal, Debarun Paul, Supratik Pal
We propose a novel cosmological probe of dark matter (DM) through inflationary primordial gravitational wave (GW) measurements highlighting its complementarity with traditional ind…
Gravitational Wave Signatures of Primordial Black Hole Reheating in Upcoming Interferometry Missions
Debarun Paul, Md Riajul Haque, Supratik Pal
We investigate the prospects of detecting a stochastic gravitational wave (GW) background from the primordial black hole (PBH) reheating epoch. If PBHs form during a non-standard c…
Revisiting primordial magnetic fields through 21-cm physics: Bounds and forecasts
Arko Bhaumik, Debarun Paul, Supratik Pal
Primordial magnetic fields (PMFs) may significantly influence 21-cm physics via two mechanisms: (i) magnetic heating of the intergalactic medium (IGM) through ambipolar diffusion (…
Primordial Gravitational Waves as Probe of Dark Matter in Interferometer Missions: Fisher Forecast and MCMC
Anish Ghoshal, Debarun Paul, Supratik Pal
We propose novel inflationary primordial gravitational wave (GW) spectral shapes at interferometer-based current and future GW missions to test dark matter (DM) production via grav…
Post-inflationary Leptogenesis and Dark Matter production: Metric versus Palatini formalism
Anish Ghoshal, Zygmunt Lalak, Supratik Pal +1
We investigate production of non-thermal dark matter particles and heavy sterile neutrinos from inflaton during the reheating era, which is preceded by a slow-roll inflationary epo…
Primordial magnetic non-Gaussianity with generic vacua and detection prospects in CMB spectral distortions
Arko Bhaumik, Supratik Pal
Assuming a slow-roll inflationary model where conformal invariance of the Maxwell action is broken via a non-minimal kinetic coupling term, we investigate the non-Gaussian three-po…