TY  - GEN
A1  - Zahn, Oliver
UR  - https://archiv.ub.uni-heidelberg.de/volltextserver/7091/
N2  - We model the epoch of hydrogen reionisation of the universe, using analytic as well as numerical methods. In a detailed statistical analysis of our results, we find good agreement in the alternative descriptions of the morphology of ionized regions. We use the simulations to make predictions for reionisation observables that should be accessible within a few years years: the kinetic Sunyaev-Zel'dovich effect and fluctuations in the 21 cm spin flip transition of neutral hydrogen. We also propose to use the 21 cm signal to constrain cosmological parameters by probing the matter power spectrum. We also make use of the observable as s source screen for gravitational lensing by large scale structure, and develop a formalism to extract the lens distribution from the characteristics of the lensed 21 cm field. 
AV  - public
TI  - Illuminating the Universe : New Probes of Reionization and Cosmology
Y1  - 2007///
ID  - heidok7091
KW  - Kosmologie 
KW  -  Reionisation 
KW  -  Gravitationslinseneffekt 
KW  -  Sunyaev-Zel'dovich EffektCosmology 
KW  -  Reionization 
KW  -  gravitational lensing 
KW  -  Sunyaev-Zel'dovich effect
ER  -