The LOFAR epoch of reionization experiment data model: simulations, calibration and inversion
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.
Last modified: | 13 March 2020 01.15 a.m. |
More news
-
07 July 2025
Master’s student Industrial Engineering and Management Ana Lazar wins GUF 100 Prize
At the UG Ceremony of Merits on July 4, Ana Lazar was awarded the GUF 100 Prize, making her the best student of the Faculty of Science and Engineering 2024-2025.
-
04 July 2025
University of Groningen awards various prizes during Ceremony of Merits
The UG awarded different prizes to excellent researchers and students during the Ceremony of Merits on 4 July 2025.
-
03 July 2025
Erik Heeres receives RUG Impact Innovator Excellence Award
During the RUG Ventures Innovation Day, Prof. Erik Heeres of the Faculty of Science and Engineering (RUG) was awarded the Impact Innovator Excellence Award.