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Multiscale analysis of LOFAR calibration data
Katarzyna Budzinska - Space Research Centre, Polish Academy of Sciences; Marcin Grzesiak - Space Research Centre, Polish Academy of Sciences, Poland; Maaijke Mevius - ASTRON Netherlands Institute for Radio Astronomy, Netherlands; Mariusz Pozoga - Space Research Centre, Polish Academy of Sciences, Poland; Hanna Rothkaehl - Space Research Centre, Polish Academy of Sciences, Poland; Barbara Matyjasiak - Space Research Centre, Polish Academy of Sciences, Poland
The Low Frequency Array (LOFAR) interferometer is a radio telescope network that provides the radio astronomical observations with the highest up-to-date sensitivity in the frequency regime between 10 and 240 MHz. As these frequencies approach the ionospheric plasma frequency, ionospheric perturbation of propagating electromagnetic signal is the main environmental factor affecting the quality of observations. Removal of ionospheric influence is a part of routinely conducted data calibration, resulting in high sensitivity differential Total Electron Content (dTEC) values between LOFAR stations.
In this study we present a method for medium scale ionospheric structures detection applied to interferometric data obtained from calibration solutions of one of the key LOFAR projects- the Epoch of Reionization. Combined analysis performed on different spatial scales helped to validate our findings and obtain complementary description of observed phenomena.
16 July 2020
Abstract submission opens:
16 July 2020
European Space Weather Medals:
6 September 2020
25 September 2020
Registration deadline: [extended]
10 October 2020
Abstract submission deadline:
4 September 2020