Constraining the epoch of reionization with highly dispersed fast radio bursts

Toward Epoch of Reionization Measurements with Wide-field Radio Observations

This paper explores the potential for statistical epoch of reionization (EOR) measurements using wide-field radio observations. New developments in low-frequency radio instrumentation and signal processing allow very sensitive EOR measurements, and the analysis techniques enabled by these advances offer natural ways of separating the EOR signal from the residual foreground emission. This paper ...

Constraining the Astrophysics of the Cosmic Dawn and the Epoch of Reionization with the SKA

Constraining the Beaming of γ-Ray Bursts With Radio Surveys

The degree of beaming in Gamma-Ray Bursts (GRBs) is currently unknown. The uncertainty in the γ-ray beaming angle, θb, leaves the total energy release (∝ θ2 b) and the event rate per galaxy (∝ θ b ) unknown to within orders of magnitude. Since the delayed radio emission of GRB sources originates from a mildly relativistic shock and receives only weak relativistic beaming, the rate of radio-sele...

The Epoch of Reionization

We have modelled the process of reionization of the intergalactic medium (IGM) by photoionization by galaxies, in order to learn what galaxy formation in the framework of the CDM model predicts for the epoch of reionization. We use a sophisticated semi-analytic model of galaxy formation to track the formation of these galaxies, their influence on the IGM, and the back-reaction of the state of t...

Enabling next Generation Dark Energy and Epoch of Reionization Radio Observatories with the Moff Correlator

Proposed HI structure observatories for studying the epoch of reionization (z ≈ 6–15) and dark energy (z ≈ 0–6) envision compact arrays with tens of thousands of antenna elements. Fully correlating this many elements is computationally expensive using XF or FX correlators, and has led some groups to reconsider direct imaging/FFT correlators. In this paper we develop a variation of the direct im...