PhD ceremony: Mr. P. Lampropoulos, 11.00 uur, Academiegebouw, Broerstraat 5, Groningen
Thesis: The LOFAR epoch of reionization experiment data model: simulations, calibration and inversion
Promotor(s): prof. L.V.E. Koopmans, prof. S. Zaroubi, prof. A.G. de Bruijn
Faculty: Mathematics and Natural Sciences
One of the most exciting applications of LOFAR will be the search for redshifted 21 cm line emission from the Epoch of Reionisation (EoR). The thesis of Panagiotis Lampropoulos examines the relationship between the sky signal and the observed data and discusses a statistically optimal solution for the processing of LOFAR data, that is also computationally efficient.
It is currently believed that the Dark Ages, the period after recombination when the Universe turned neutral, lasted until around the Universe was 400,000 years old. During the EoR, objects started to form in the early universe and they were energetic enough to ionize neutral hydrogen. The most prominent method to unravel the string leading to this epoch is the 21-cm line of neutral hydrogen, the most abundant element in the Universe. Due to the expansion of the Universe, this line is redshifted to the low regime of the radio spectrum with wavelengths of the order of a few meters. The sensitivity required to achieve this scientific goal, essentially translates into accumulating large amounts of data. Furthermore, the data have to be corrected for instrumental and atmospheric distortions to an unprecedented level.
The Athena Award is a prize for outstanding female researchers.
Erik Heeres, professor in Green Chemical Reaction Engineering of the Engineering institute ENTEG of the University of Groningen, and his brother Andre received the 'Groene Groninger'. This is an award from the regional chemical industry for a...
Theunis Piersma has been awarded the first Stairway to Impact Award, one of five new Science Awards introduced by NWO. The winners are seen by the jury as an inspiration in the fields of social impact, team science, role model, diversity and...