53 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- North Eastern Hill UniversityIN6 papers
- Inter-University Centre for Astronomy and AstrophysicsIN4 papers
- St. Anthony's CollegeIN4 papers
- University of Chinese Academy of SciencesCN3 papers
- Birla Institute of Technology and Science - Hyderabad CampusIN2 papers
- Birla Institute of Technology and Science, PilaniIN2 papers
- Indian Institute of Technology GandhinagarIN2 papers
- Indian Institute of Technology IndoreIN2 papers
- Physical Research LaboratoryIN2 papers
- Austral University of ChileCL1 paper
- Bharathidasan UniversityIN1 paper
- Department of Science and TechnologyIN1 paper
5 papers · 1 filter
Axion-Photon Conversion In Magnetized Universe: Impact On The Global 21-cm Signal
Pravin Kumar Natwariya, Vivekanand Mohapatra, Hriditi Howlader
The reported anomalous global 21-cm signal from the cosmic dawn era by Experiment to Detect the Global Epoch of Reionisation Signature (EDGES) could hint towards new phy…
Cosmological bounds on dark matter annihilation using dark ages 21-cm signal
Vivekanand Mohapatra
We investigate the impact of dark matter (DM) annihilation on the global 21-cm signal during the dark ages and cosmic dawn eras. The 21-cm line provides a complementary probe for s…
Primordial Magnetic Fields in Light of Dark Ages Global 21-cm Signal
Vivekanand Mohapatra, Pravin Kumar Natwariya, Alekha C. Nayak
We study the constraints on primordial magnetic fields (PMFs) in light of the global 21-cm signal observed during the dark ages. Primordial magnetic fields can heat the intergalact…
In Search of Global 21-cm Signal using Artificial Neural Network in light of ARCADE 2
Vivekanand Mohapatra, Johnny J, Pravin Kumar Natwariya +2
Understanding the astrophysical nature of the first stars remains an unsolved problem in cosmology. The redshifted global 21-cm signal acts as a treasure trove to prob…
Baryon-Dark matter interaction in presence of magnetic fields in light of EDGES signal
Jitesh R. Bhatt, Pravin Kumar Natwariya, Alekha C. Nayak +1
We have shown that in presence of a cosmic magnetic field the bounds on baryon dark matter cross-section (), dark-matter mass () and values of the magnetic field ($B_0…