Harker, Geraint, Zaroubi, Saleem, Bernardi, Gianni, Brentjens, Michiel A., De Bruyn, A. G., Ciardi, Benedetta, ...
One of the aims of the Low Frequency Array (LOFAR) Epoch of Reionization (EoR) project is to measure the power spectrum of variations in the intensity of redshifted 21-cm radiation from the EoR. The...
Jelic, Vibor, Zaroubi, Saleem, Aghanim, Nabila, Douspis, Marian, Koopmans, Leon V. E., Langer, Mathieu, ...
The Universe's Epoch of Reionization (EoR) can be studied using a number of observational probes that provide complementary or corroborating information. Each of these probes suffers from its own...
Non-parametric foreground subtraction for 21cm epoch of reionization experiments (2009)
Harker, Geraint, Zaroubi, Saleem, Bernardi, Gianni, Brentjens, Michiel A., De Bruyn, A. G., Ciardi, Benedetta, ...
An obstacle to the detection of redshifted 21cm emission from the epoch of reionization (EoR) is the presence of foregrounds which exceed the cosmological signal in intensity by orders of magnitude....
Labropoulos, Panagiotis, Koopmans, Leon V. E., Jelic, Vibor, Yatawatta, Sarod, Thomas, Rajat M., Bernardi, Gianni, ...
A number of experiments are set to measure the 21-cm signal of neutral hydrogen from the Epoch of Reionization (EoR). The common denominator of these experiments are the large data sets produced,...
Fast large-scale reionization simulations (2009)
Thomas, Rajat M., Zaroubi, Saleem, Ciardi, Benedetta, Pawlik, Andreas H., Labropoulos, Panagiotis, Jelic, Vibor, ...
Harker, Geraint J. A., Zaroubi, Saleem, Thomas, Rajat M., Jelic, Vibor, Labropoulos, Panagiotis, Mellema, Garrelt, ...
Non-parametric foreground subtraction for 21-cm epoch of reionization experiments (2009)
Harker, Geraint, Zaroubi, Saleem, Bernardi, Gianni, Brentjens, Michiel A., De Bruyn, A. G., Ciardi, Benedetta, ...
Harker, Geraint J. A., Zaroubi, Saleem, Thomas, Rajat M., Jelic, Vibor, Labropoulos, Panagiotis, Mellema, Garrelt, ...
Detecting redshifted 21cm emission from neutral hydrogen in the early Universe promises to give direct constraints on the epoch of reionization (EoR). It will, though, be very challenging to extract...
Fast Large-Scale Reionization Simulations (2008)
Thomas, Rajat M., Zaroubi, Saleem, Ciardi, Benedetta, Pawlik, Andreas H., Labropoulos, Panagiotis, Jelic, Vibor, ...
We present an efficient method to generate large simulations of the Epoch of Reionization (EoR) without the need for a full 3-dimensional radiative transfer code. Large dark-matter-only simulations...
Foreground simulations for the LOFAR - Epoch of Reionization Experiment (2008)
Jelic, Vibor, Zaroubi, Saleem, Labropoulos, Panagiotis, Thomas, Rajat M., Bernardi, Gianni, Brentjens, Michiel A., ...
Future high redshift 21-cm experiments will suffer from a high degree of contamination, due both to astrophysical foregrounds and to non-astrophysical and instrumental effects. In order to reliably...
Time-evolution of ionization and heating around first stars and miniquasars (2007)
Thomas, Rajat M., Zaroubi, Saleem
A one dimensional radiative transfer code is developed to track the ionization and heating pattern around the first miniquasars and Population III stars. The code follows the evolution of the...
Heating of the Intergalactic Medium by Primordial Miniquasars (2006)
Zaroubi, Saleem, Thomas, Rajat M., Sugiyama, Naoshi, Silk, Joe
A simple analytical model is used to calculate the X-ray heating of the IGM for a range of black hole masses. This process is efficient enough to decouple the spin temperature of the intergalactic...