93 citations · 359 across the 27 of their papers we have counts for
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A closer look at dark photon explanations of the excess radio background
Sandeep Kumar Acharya, Jens Chluba
The observed excess radio background has remained a puzzle for over a decade. A recent new physics solution involves dark matter that decays into dark photons in the presence of a…
Can accreting primordial black holes explain the excess radio background?
Sandeep Kumar Acharya, Jiten Dhandha, Jens Chluba
The excess radio background seen at has stimulated much scientific debate in the past years. Recently, it was pointed out that the soft photon emission f…
Revisiting secondary CMB distortions due to kinetic Sunyaev-Zel'dovich effect from quasar bubbles before reionization
Sandeep Kumar Acharya, Subhabrata Majumdar
We discuss the secondary cosmic microwave background (CMB) anisotropy due to kinetic Sunyaev-Zel'dovich (kSZ) effect from ionized bubbles around individual quasars prior to the rei…
Importance of intracluster scattering and relativistic corrections from tSZ effect with Cosmic Infrared Background
Sandeep Kumar Acharya, Jens Chluba
The Sunyaev-Zeldovich effect towards clusters of galaxies has become a standard probe of cosmology. It is caused by the scattering of photons from the cosmic microwave background (…
The non-thermal secondary CMB anisotropies from a cosmic distribution of radio galaxy lobes
Sandeep Kumar Acharya, Subhabrata Majumdar, Biman B. Nath
Current and upcoming high angular resolution and multi-frequency experiments are well poised to explore the rich landscape of secondary CMB anisotropies. In this context, we comput…