84 citations · 293 across the 23 of their papers we have counts for
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Infrared Lines from Sterile-Neutrino Transition Magnetic Moments at JWST
Hriditi Howlader, Alekha C. Nayak, Tripurari Srivastava
We investigate infrared line signatures from radiatively decaying sterile-neutrino dark matter using publicly available JWST/NIRSpec IFU blank-sky observations. The main signal con…
Dark ages bounds on nonaccreting massive compact halo objects
Vivekanand Mohapatra, Alekha C. Nayak
We derive a complementary cosmological upper bound on the fraction of dark matter residing inside non-accreting massive compact halo objects (MACHOs) using the cosmic dawn and dark…
Constraining Primordial Black Holes via p-wave annihilation in light of CMB Spectral Distortion and 21-cm global signal
Shibsankar Si, Pravin Kumar Natwariya, Alekha C. Nayak
Primordial black holes (PBHs) can form spike density halos through the accretion of weakly interacting massive particles (WIMPs). In these halos, the enhanced density significantly…