Flux Density measurements of GPS pulsar J1740+1000 with LOFAR

Flux Density measurements of GPS pulsar J1740+1000 with LOFAR

Małgorzata Curyło, Karolina Rożko, Jarosław Kijak, Wojciech Lewandowski, Krzysztof T. Chyży, Andrzej Krankowski, Sarrvesh S. Sridhar, Leszek Błaszkiewicz, Tim Shimwell

Observations of Gigahertz-Peaked Spectra (GPS) pulsars (characterized by a decreasing flux density below 1 GHz) on the lowest frequencies are challenging mainly because of high resolution and sensitivity requirements that are not easily achievable by current telescopes. A proper and complicated calibration process may thus be the key element for studying faint sources with signal only scarcely exceeding the detection limit. Hereby we present the analysis of PSR J1740+1000 LOFAR observations with two distinct calibration methods where we aim at accurate flux density measurements at central frequency of 150 MHz.

Proceedings of the Polish Astronomical Society, vol. 10, 69-71 (2020)

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