Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals’ Characteristics Observed with LOFAR
Pulsars’ signals reaching the atmosphere can be considered being stable under certain assumptions. In such a case the ionosphere remains the main factor distorting signal from the extraterrestrial sources, particularly if we observe them at long radio waves. In this article we present the results of...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/1/51 |
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| author | Leszek P. Błaszkiewicz Paweł Flisek Kacper Kotulak Andrzej Krankowski Wojciech Lewandowski Jarosław Kijak Adam Froń |
| author_facet | Leszek P. Błaszkiewicz Paweł Flisek Kacper Kotulak Andrzej Krankowski Wojciech Lewandowski Jarosław Kijak Adam Froń |
| author_sort | Leszek P. Błaszkiewicz |
| collection | DOAJ |
| description | Pulsars’ signals reaching the atmosphere can be considered being stable under certain assumptions. In such a case the ionosphere remains the main factor distorting signal from the extraterrestrial sources, particularly if we observe them at long radio waves. In this article we present the results of the analysis of relative peak flux changes for two selected pulsars: PSR J0332+5434 (B0329+54) and PSR J1509+5531 (B1508+55), observed with the long radio wave sensor (The PL612 Low Frequency Array (LOFAR) station in Bałdy), together with the analysis of Rate of TEC (ROT) parameter changes measured with the Global Navigation Satellite Systems (GNSS) sensor (IGS LAMA station (IGS: International GSSN Service)). The main objective of the work is to find if the rapid plasma density (observed with the Rate of Total Electron Content (TEC)) has a counterpart in the pulsar observation characteristics. This focuses the attention on ionosphere influence during pulsar investigations at low radio frequencies. Additionally, what was the aim of this work, our results give reasons for using pulsar signals from LOFAR together with GNSS data as multi instrumental ionosphere state probes. Our results show a clear anti-correlation between the ROT and the pulsar profile’s peak flux trends. |
| first_indexed | 2024-03-10T13:48:47Z |
| format | Article |
| id | doaj.art-d1cf4f074166458491a915fb2045cb13 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T13:48:47Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d1cf4f074166458491a915fb2045cb132023-11-21T02:24:02ZengMDPI AGSensors1424-82202020-12-012115110.3390/s21010051Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals’ Characteristics Observed with LOFARLeszek P. Błaszkiewicz0Paweł Flisek1Kacper Kotulak2Andrzej Krankowski3Wojciech Lewandowski4Jarosław Kijak5Adam Froń6Space Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, PolandSpace Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, PolandSpace Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, PolandSpace Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, PolandJanusz Gil Institute of Astronomy, University of Zielona Gora, 65-417 Zielona Gora, PolandJanusz Gil Institute of Astronomy, University of Zielona Gora, 65-417 Zielona Gora, PolandSpace Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, PolandPulsars’ signals reaching the atmosphere can be considered being stable under certain assumptions. In such a case the ionosphere remains the main factor distorting signal from the extraterrestrial sources, particularly if we observe them at long radio waves. In this article we present the results of the analysis of relative peak flux changes for two selected pulsars: PSR J0332+5434 (B0329+54) and PSR J1509+5531 (B1508+55), observed with the long radio wave sensor (The PL612 Low Frequency Array (LOFAR) station in Bałdy), together with the analysis of Rate of TEC (ROT) parameter changes measured with the Global Navigation Satellite Systems (GNSS) sensor (IGS LAMA station (IGS: International GSSN Service)). The main objective of the work is to find if the rapid plasma density (observed with the Rate of Total Electron Content (TEC)) has a counterpart in the pulsar observation characteristics. This focuses the attention on ionosphere influence during pulsar investigations at low radio frequencies. Additionally, what was the aim of this work, our results give reasons for using pulsar signals from LOFAR together with GNSS data as multi instrumental ionosphere state probes. Our results show a clear anti-correlation between the ROT and the pulsar profile’s peak flux trends.https://www.mdpi.com/1424-8220/21/1/51radio astronomyLOFARpulsarionospherespace weatherGNSS |
| spellingShingle | Leszek P. Błaszkiewicz Paweł Flisek Kacper Kotulak Andrzej Krankowski Wojciech Lewandowski Jarosław Kijak Adam Froń Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals’ Characteristics Observed with LOFAR Sensors radio astronomy LOFAR pulsar ionosphere space weather GNSS |
| title | Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals’ Characteristics Observed with LOFAR |
| title_full | Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals’ Characteristics Observed with LOFAR |
| title_fullStr | Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals’ Characteristics Observed with LOFAR |
| title_full_unstemmed | Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals’ Characteristics Observed with LOFAR |
| title_short | Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals’ Characteristics Observed with LOFAR |
| title_sort | finding the ionospheric fluctuations reflection in the pulsar signals characteristics observed with lofar |
| topic | radio astronomy LOFAR pulsar ionosphere space weather GNSS |
| url | https://www.mdpi.com/1424-8220/21/1/51 |
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