FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS
Purpose: Due to the significant increase of a number of pulsars discovered with high-frequency radio telescopes over the last ten years and the necessity to obtain accurate parameters of their decameter radiation (as well as to identify single pulses detected with the UTR-2), the second decameter ce...
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Видавничий дім «Академперіодика»
2020
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Radio physics and radio astronomy| id |
rpra-journalorgua-article-1336 |
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ojs |
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Radio physics and radio astronomy |
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2020-09-23T10:29:18Z |
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Ukrainian |
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pulsar census decameter wavelengths pulsar period flux dispersion measure UTR-2 |
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pulsar census decameter wavelengths pulsar period flux dispersion measure UTR-2 Kravtsov, I. P. Zakharenko, V. V. Vasylieva, I. Y. Shevtsova, A. I. Yerin, S. M. Ulyanov, O. M. Konovalenko, O. O. Vasylkivskyi, Y. V. Myasoyed, A. I. FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS |
| topic_facet |
pulsar census decameter wavelengths pulsar period flux dispersion measure UTR-2 pulsar census decameter wavelengths pulsar period flux dispersion measure UTR-2 пульсар перепис декаметровий діапазон період пульсара потік міра дисперсії УТР-2 |
| format |
Article |
| author |
Kravtsov, I. P. Zakharenko, V. V. Vasylieva, I. Y. Shevtsova, A. I. Yerin, S. M. Ulyanov, O. M. Konovalenko, O. O. Vasylkivskyi, Y. V. Myasoyed, A. I. |
| author_facet |
Kravtsov, I. P. Zakharenko, V. V. Vasylieva, I. Y. Shevtsova, A. I. Yerin, S. M. Ulyanov, O. M. Konovalenko, O. O. Vasylkivskyi, Y. V. Myasoyed, A. I. |
| author_sort |
Kravtsov, I. P. |
| title |
FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS |
| title_short |
FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS |
| title_full |
FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS |
| title_fullStr |
FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS |
| title_full_unstemmed |
FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS |
| title_sort |
first detection at the decameter wavelengths and clarification of radiation parameters of psr j2325-0530, psr j0613+3731, and psr j1426+52 radio pulsars |
| title_alt |
FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS ПЕРШЕ ДЕТЕКТУВАННЯ НА ДЕКАМЕТРОВИХ ХВИЛЯХ І УТОЧНЕННЯ ПАРАМЕТРІВ ВИПРОМІНЮВАННЯ РАДІОПУЛЬСАРІВ PSR J2325-0530, PSR J0613+3731 і PSR J1426+52 |
| description |
Purpose: Due to the significant increase of a number of pulsars discovered with high-frequency radio telescopes over the last ten years and the necessity to obtain accurate parameters of their decameter radiation (as well as to identify single pulses detected with the UTR-2), the second decameter census of these sources with the UTR-2 radio telescope became needed.Design/methodology/approach: Single pulses detected as a result of the first decameter survey of pulsars and transient emission sources can be anomalously intense pulses of the recently discovered pulsars. Identification is only possible with an accurate information on the dispersion measure (DM) of each of these sources. Given that the new pulsars are likely to have a low radiant flux density, in contrast to the first decameter pulsar census [1], the second one plans to increase the signal-to-noiseratio by increasing the observation time of each pulsar. This paper gives a complete list of the studied sources, limited by the dispersion measure (DM< 30 pc·cm-³), period (P> 0.1 s) and declination (δ>-10º), known for the beginning of 2020, as well as some examples of the decameter pulsar radio emission detected by means of pipeline data processing with the possibility of flexible adjustment of search parameters.Findings: For the first time in the low-frequency wavelength range, the radio emission from the PSR J2325-0530, PSR J0613+3731, and PSR J1426+52 pulsars has been detected. The main result of present work is specified period for the latter pulsar (PSR J1426+52), being 0.995866 s ± 5 µs, the other parameters of its radio emission are also specified.Conclusions: High sensitivity of the UTR-2 radio telescope, its receiving equipment and efficient data processing and analysis pipeline allow detecting the decameter radiation of weak pulsars, as well as obtaining their parameters with the accuracy sufficient for identification of previously discovered transient signals.Key words: pulsar, census, decameter wavelengths, pulsar period, flux, dispersion measure, UTR-2Manuscript submitted 27.07.2020Radio phys. radio astron. 2020, 25(3): 193-210REFERENCES1. HEWISH, A., BELL, S. J., PILKINGTON, J. D. H., SCOTT, P. F. and COLLINS, R. A., 1968. Observation of a rapidly pulsating radio source. Nature. vol. 217, pp. 709–713. DOI: https://doi.org/10.1038/217709a02. BAILES, M., JAMESON, A., FLYNN, C., BATEMAN, T., BARR, E. D., BHANDARI, S., BUNTON, J. 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Largescale structure of the Northern sky at decametric waves. In: Scientific Workshop – Astrophysics with E-LOFAR [online]. [viewed 14 August 2020]. Available from: https://www.researchgate.net/publication/312367692_Largescale_structure_of_the_Northern_sky_at_decametric_waves DOI: 10.13140/RG.2.2.28090.82881 |
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Видавничий дім «Академперіодика» |
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2020 |
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rpra-journalorgua-article-13362020-09-23T10:29:18Z FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS ПЕРШЕ ДЕТЕКТУВАННЯ НА ДЕКАМЕТРОВИХ ХВИЛЯХ І УТОЧНЕННЯ ПАРАМЕТРІВ ВИПРОМІНЮВАННЯ РАДІОПУЛЬСАРІВ PSR J2325-0530, PSR J0613+3731 і PSR J1426+52 Kravtsov, I. P. Zakharenko, V. V. Vasylieva, I. Y. Shevtsova, A. I. Yerin, S. M. Ulyanov, O. M. Konovalenko, O. O. Vasylkivskyi, Y. V. Myasoyed, A. I. pulsar; census; decameter wavelengths; pulsar period; flux; dispersion measure; UTR-2 pulsar; census; decameter wavelengths; pulsar period; flux; dispersion measure; UTR-2 пульсар; перепис; декаметровий діапазон; період пульсара; потік; міра дисперсії; УТР-2 Purpose: Due to the significant increase of a number of pulsars discovered with high-frequency radio telescopes over the last ten years and the necessity to obtain accurate parameters of their decameter radiation (as well as to identify single pulses detected with the UTR-2), the second decameter census of these sources with the UTR-2 radio telescope became needed.Design/methodology/approach: Single pulses detected as a result of the first decameter survey of pulsars and transient emission sources can be anomalously intense pulses of the recently discovered pulsars. Identification is only possible with an accurate information on the dispersion measure (DM) of each of these sources. Given that the new pulsars are likely to have a low radiant flux density, in contrast to the first decameter pulsar census [1], the second one plans to increase the signal-to-noiseratio by increasing the observation time of each pulsar. This paper gives a complete list of the studied sources, limited by the dispersion measure (DM< 30 pc·cm-³), period (P> 0.1 s) and declination (δ>-10º), known for the beginning of 2020, as well as some examples of the decameter pulsar radio emission detected by means of pipeline data processing with the possibility of flexible adjustment of search parameters.Findings: For the first time in the low-frequency wavelength range, the radio emission from the PSR J2325-0530, PSR J0613+3731, and PSR J1426+52 pulsars has been detected. 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Largescale structure of the Northern sky at decametric waves. In: Scientific Workshop – Astrophysics with E-LOFAR [online]. [viewed 14 August 2020]. Available from: https://www.researchgate.net/publication/312367692_Largescale_structure_of_the_Northern_sky_at_decametric_waves DOI: 10.13140/RG.2.2.28090.82881 Purpose: Due to the significant increase of a number of pulsars discovered with high-frequency radio telescopes over the last ten years and the necessity to obtain accurate parameters of their decameter radiation (as well as to identify single pulses detected with the UTR-2), the second decameter census of these sources with the UTR-2 radio telescope became needed.Design/methodology/approach: Single pulses detected as a result of the first decameter survey of pulsars and transient emission sources can be anomalously intense pulses of the recently discovered pulsars. Identification is only possible with an accurate information on the dispersion measure (DM) of each of these sources. Given that the new pulsars are likely to have a low radiant flux density, in contrast to the first decameter pulsar census [1], the second one plans to increase the signal-to-noiseratio by increasing the observation time of each pulsar. This paper gives a complete list of the studied sources, limited by the dispersion measure (DM< 30 pc·cm-³), period (P> 0.1 s) and declination (δ>-10º), known for the beginning of 2020, as well as some examples of the decameter pulsar radio emission detected by means of pipeline data processing with the possibility of flexible adjustment of search parameters.Findings: For the first time in the low-frequency wavelength range, the radio emission from the PSR J2325-0530, PSR J0613+3731, and PSR J1426+52 pulsars has been detected. 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Largescale structure of the Northern sky at decametric waves. In: Scientific Workshop – Astrophysics with E-LOFAR [online]. [viewed 14 August 2020]. Available from: https://www.researchgate.net/publication/312367692_Largescale_structure_of_the_Northern_sky_at_decametric_waves DOI: 10.13140/RG.2.2.28090.82881 Предмет і мета роботи: У зв’язку з суттєвим збільшенням за останні десять років кількості відкритих на високочастотних радіотелескопах пульсарів і необхідністю отримання точних параметрів їх випромінювання в декаметровому діапазоні, а також для ототожнення відкритих на УТР-2 одиночних імпульсів нагальною потребою стало проведення другого декаметрового перепису цих джерел за допомогою радіотелескопа УТР-2.Методи і методологія: Одиночні імпульси, відкриті в результаті проведення першого декаметрового огляду пульсарів і джерел транзієнтного випромінювання, можуть виявитися аномально інтенсивними імпульсами нещодавно відкритих пульсарів. Ототожнення є можливим лише за наявності точної інформації про міру дисперсії (МД), характерну для цих пульсарів. Враховуючи те, що нові пульсари, ймовірно, мають невисоке значення густини потоку випромінювання, у другому переписі, на відміну від першого декаметрового перепису пульсарів, планується збільшити співвідношення сигнал/шум за рахунок збільшення часу спостереження кожного пульсара. В роботі надається повний перелік досліджуваних джерел, обмежених за мірою дисперсії (DM< 30 pc·cm-³), педіодом пульсара (P> 0.1 s) та схиленням (δ>-10º), відомих на початок 2020 р., а також приклади детектування декаметрового випромінювання пульсарів за допомогою конвеєрної обробки даних спостережень з можливістю гнучкого налаштування параметрів пошуку.Результати:Вперше в низькочастотному діапазоні було виявлено радіовипромінювання пульсарів PSR J2325-0530, PSR J0613+3731 та PSR J1426+52. Основним результатом цієї роботи є уточнення періоду останнього з них (PSR J1426+52), що складає 0.995866 с ± 5 мкс. Було уточнено також інші параметри його радіовипромінювання.Висновок: Висока чутливість радіотелескопа УТР-2, його приймальної апаратури й ефективний конвеєр обробки й аналізу даних дозволяють виявляти декаметрове випромінювання слабких пульсарів, а також отримувати його параметри з точністю, достатньою для ототожнення відкритих раніше транзієнтних сигналів.Ключові слова: пульсар, перепис, декаметровий діапазон, період пульсара, потік, міра дисперсії, УТР-2Стаття надійшла до редакції 27.07.2020Radio phys. radio astron. 2020, 25(3): 193-210СПИСОК ЛІТЕРАТУРИ1. Hewish A., Bell S. J., Pilkington J. D. H., Scott P. F. and Collins R. A. Observation of a rapidly pulsating radio source. Nature. 1968. Vol. 217. P. 709–713. DOI: 10.1038/217709a02. Bailes M., Jameson A., Flynn C., Bateman T., Barr E. D., Bhandari S., Bunton J. 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Available from: https://www.researchgate.net/publication/312367692_Large-scale_structure_ of_the_Northern_sky_at_decametric_waves DOI: 10.13140/RG.2.2.28090.82881 Видавничий дім «Академперіодика» 2020-09-10 Article Article application/pdf http://rpra-journal.org.ua/index.php/ra/article/view/1336 10.15407/rpra25.03.193 РАДИОФИЗИКА И РАДИОАСТРОНОМИЯ; Vol 25, No 3 (2020); 193 RADIO PHYSICS AND RADIO ASTRONOMY; Vol 25, No 3 (2020); 193 РАДІОФІЗИКА І РАДІОАСТРОНОМІЯ; Vol 25, No 3 (2020); 193 2415-7007 1027-9636 10.15407/rpra25.03 uk http://rpra-journal.org.ua/index.php/ra/article/view/1336/pdf Copyright (c) 2020 RADIO PHYSICS AND RADIO ASTRONOMY |