Licentiate seminar: Simulating Observational Probes of Reionization
by
Hannes Jensen
→
Europe/Stockholm
FA31
FA31
Description
The time period between the emission of the cosmic microwave background and
the complete ionization of the intergalactic medium—often referred to as the Dark
Ages and Epoch of Reionization—is one of the least explored times in the history of
the Universe. Observers and theorists are currently hard at work building instruments
and devising theoretical models that can help us understand the events that took place
when the first stars and galaxies formed, and the Universe underwent its last big phase
transition from neutral to ionized.
The processes that took place during the Epoch of Reionization can be studied in a
number of ways, both directly and indirectly. The theme of my work is tying together
simulations with past and future observations, investigating what can be measured and
how measurements can be used to constrain reionization.
In the first chapter of this thesis I give an overview of the current status of the
field in terms of observational constraints and theoretical understanding. The second
and third chapters deal more in-depth with two observables that are central to my own
work: Ly-a emitting galaxies and the redshifted 21-cm line.
