Seminari DAM: The LOFAR-Epoch of Reionization experiment: towards the first stars in the Universe

Ponent: Vibor Jelic. (Kapteyn Astronomical Institute, University of Groningen, The
Netherlands ASTRON - Netherlands Institute for Radio Astronomy)

Data / hora:     13.03.2014, 12:00:00

Lloc:  Seminari del Departament d'Astronomia i Meteorologia (planta 7ª.)



With the new world-leading radio telescope LOFAR (the Low Frequency Array),
Dutch scientists are expected to detect cosmological radiation emitted billions
of years ago, from the time of the first “stars”. This pivotal period in the history of the Universe is called the Epoch of Reionization (EoR). It holds the key to structure formation and volution of the Universe we know today, but at the same time represents a missing piece of the puzzle in our current knowledge of the Universe. However, feeble cosmological radiation is swamped by the foreground emission of our Galaxy and other extragalacticm radio sources. Without removing the foreground emission from the data, we will not be able to detect the cosmological radiation and understand the EoR.
During my talk I will give an overview of the LOFAR-EoR experiment, its
challenges and present the most recent observational results.