<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Data manipulation of the LOFAR Long-Baseline Calibrator Survey (LBCS) and the Westerbork Northern Sky Survey (WENSS) catalogues are carried out in the present study. The aim of the study is to make calibrator classification statistics plots and estimations for further observations and upcoming stations. First, mean flux densities of LBCS calibrators against declination and observed station baseline length to the tied core station are plotted and the classified sources are marked. Second, we provide the designation – naming it the success rate – for the number of sources with the correlated signal against all the LBCS catalogue sources. Third, there is a trend in mean peak flux densities between stations – longer the baseline, higher mean peak flux density. Finally, estimations for upcoming and recent stations are made and some results are not encouraging.</p></abstract>

Data manipulation of the LOFAR Long-Baseline Calibrator Survey (LBCS) and the Westerbork Northern Sky Survey (WENSS) catalogues are carried out in the present study. The aim of the study is to make calibrator classification statistics plots and estimations for further observations and upcoming stations. First, mean flux densities of LBCS calibrators against declination and observed station baseline length to the tied core station are plotted and the classified sources are marked. Second, we provide the designation – naming it the success rate – for the number of sources with the correlated signal against all the LBCS catalogue sources. Third, there is a trend in mean peak flux densities between stations – longer the baseline, higher mean peak flux density. Finally, estimations for upcoming and recent stations are made and some results are not encouraging.

The LOFAR Long-Baseline Calibrator Survey Classification

Engineering Research Institute “Ventspils International Radio Astronomy Center”

Latvian Journal of Physics and Technical Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"The LOFAR Long-Baseline Calibrator Survey Classification"}

Data manipulation of the LOFAR Long-Baseline Calibrator Survey (LBCS) and the Westerbork Northern Sky Survey (WENSS) catalogues are carried out in the present...

The LOFAR Long-Baseline Calibrator Survey Classification

Publié en ligne: 11 mai 2020

Pages: 34 - 40

DOI: https://doi.org/10.2478/lpts-2020-0005

Mots clés
catalogue manipulation, LBCS classification, LOFAR calibrators, statistical estimation

© 2020 A. Nikolajevs et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The LOFAR Long-Baseline Calibrator Survey Classification

Publié en ligne: 11 mai 2020

Pages: 34 - 40

DOI: https://doi.org/10.2478/lpts-2020-0005

Mots cléscatalogue manipulation, LBCS classification, LOFAR calibrators, statistical estimation

© 2020 A. Nikolajevs et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
catalogue manipulation, LBCS classification, LOFAR calibrators, statistical estimation