2 papers
astro-ph.CO2026
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…
astro-ph.CO2025
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…