324 citations · 5k across the 89 of their papers we have counts for
8 papers · 1 filter
SARAS 2 constraints on global 21-cm signals from the Epoch of Reionization
Saurabh Singh, Ravi Subrahmanyan, N. Udaya Shankar +8
Spectral distortions in the cosmic microwave background over the 40--200~MHz band are imprinted by neutral hydrogen in the intergalactic medium prior to the end of reionization. Th…
Enhanced Rates of Fast Radio Bursts from Galaxy Clusters
Anastasia Fialkov, Abraham Loeb, Duncan R. Lorimer
Fast Radio Bursts (FRBs) have so far been detected serendipitously across the sky. We consider the possible enhancement in the FRB rate in the direction of galaxy clusters, and com…
Charting the Parameter Space of the 21-cm Power Spectrum
Aviad Cohen, Anastasia Fialkov, Rennan Barkana
The high-redshift 21-cm signal of neutral hydrogen is expected to be observed within the next decade and will reveal epochs of cosmic evolution that have been previously inaccessib…
Design and characterization of the Large-Aperture Experiment to Detect the Dark Age (LEDA) radiometer systems
D. C. Price, L. J. Greenhill, A. Fialkov +24
The Large-Aperture Experiment to Detect the Dark Age (LEDA) was designed to detect the predicted O(100)mK sky-averaged absorption of the Cosmic Microwave Background by Hydrogen in…
A Fast Radio Burst Occurs Every Second throughout the Observable Universe
Anastasia Fialkov, Abraham Loeb
Recent multi-telescope observations of the repeating Fast Radio Burst FRB 121102 reveal a Gaussian-like spectral profile and associate the event with a dwarf metal-poor galaxy at a…
A Space-Based Observational Strategy for Characterizing the First Stars and Galaxies Using the Redshifted 21-cm Global Spectrum
Jack O. Burns, Richard Bradley, Keith Tauscher +19
The redshifted 21-cm monopole is expected to be a powerful probe of the epoch of the first stars and galaxies (). The global 21-cm signal is sensitive to the thermal and i…
Galaxy Formation with BECDM: I. Turbulence and relaxation of idealised haloes
Philip Mocz, Mark Vogelsberger, Victor Robles +4
We present a theoretical analysis of some unexplored aspects of relaxed Bose-Einstein condensate dark matter (BECDM) haloes. This type of ultralight bosonic scalar field dark matte…
First results on the Epoch of Reionization from First Light with SARAS 2
Saurabh Singh, Ravi Subrahmanyan, N. Udaya Shankar +8
Long wavelength spectral distortions in the Cosmic Microwave Background arising from the 21-cm transition in neutral Hydrogen are a key probe of Cosmic Dawn and the Epoch of Reioni…