Cosmological Constraints from 21cm Surveys After Reionization (2008)
Visbal, Eli, Loeb, Abraham, Wyithe, Stuart
21cm emission from residual neutral hydrogen after the epoch of reionization can be used to trace the cosmological power spectrum of density fluctuations. Using a Fisher matrix formulation, we...
On the Search for Quasar Light Echoes (2007)
Visbal, Eli, Croft, Rupert A. C.
The UV radiation from a quasar leaves a characteristic pattern in the distribution of ionized hydrogen throughout the surrounding space. This pattern or light echo propagates through the...