Modification of the 21-cm power spectrum by quasars during the epoch of reionisation (2009)
Geil, Paul M., Wyithe, J. Stuart B.
We assess the effect of a population of high-redshift quasars on the 21-cm power spectrum during the epoch of reionisation. Our approach is to implement a semi-numerical scheme to calculate the...
Modification of the 21-cm power spectrum by X-rays during the epoch of reionisation (2008)
Warszawski, Lila, Geil, Paul M., Wyithe, Stuart
We incorporate a contribution to reionization from X-rays within analytic and semi-numerical simulations of the 21-cm signal arising from neutral hydrogen during the epoch of reionization. We explore...
The Impact of HI in Galaxies on 21-cm Intensity Fluctuations During the Reionisation Epoch (2008)
Wyithe, Stuart, Warszawski, Lila, Geil, Paul M., Oh, S. Peng
We investigate the impact of neutral hydrogen (HI) in galaxies on the statistics of 21-cm fluctuations using analytic and semi-numerical modelling. Following the reionisation of hydrogen the HI...
Geil, Paul. M., Wyithe, Stuart, Petrovic, Nada, Oh, Peng
We assess the impact of Galactic synchrotron foreground removal on the observation of high-redshift quasar HII regions in redshifted 21-cm emission. We consider the case where a quasar is observed in...
Rhook, Kirsty J., Geil, Paul M., Wyithe, J. Stuart B.
It has recently been suggested that the power spectrum of redshifted 21cm fluctuations could be used to measure the scale of baryonic acoustic oscillations (BAOs) during the reionisation era. The...
The Impact of a Percolating IGM on Redshifted 21 cm Observations of Quasar HII Regions (2007)
We assess the impact of inhomogeneous reionization on detection of HII regions surrounding luminous high redshift quasars using planned low frequency radio telescopes. Our approach is to implement a...