Registration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 2017

Data of synchronous geomagnetic pulsations and proton aurora registrations were analyzed during the substorm on March 1, 2017 at Zhigansk (L=4.5, induction magnetometer), Maimaga (L=4, all-sky imager and Yakutsk (L = 3.3, induction magnetometer) stations, simultaneously with satellite measurement of...

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Autores principales:	Varlamov Ilya, Parnikov Stanislav, Ievenko Igor, Baishev Dmitry, Shiokawa Kazuo
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/8d3cb35aa2b147ccbde5cd4ac3a7e91c
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spelling	oai:doaj.org-article:8d3cb35aa2b147ccbde5cd4ac3a7e91c2021-11-12T11:44:52ZRegistration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 20172100-014X10.1051/epjconf/202125402012https://doaj.org/article/8d3cb35aa2b147ccbde5cd4ac3a7e91c2021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/08/epjconf_strpep2021_02012.pdfhttps://doaj.org/toc/2100-014XData of synchronous geomagnetic pulsations and proton aurora registrations were analyzed during the substorm on March 1, 2017 at Zhigansk (L=4.5, induction magnetometer), Maimaga (L=4, all-sky imager and Yakutsk (L = 3.3, induction magnetometer) stations, simultaneously with satellite measurement of EMIC waves. Ground-based registration of proton aurora is very difficult due to the fact that their intensity is much lower than the aurora intensity caused by precipitations of electrons, but in the event of substorm activity at the zenith of Maimaga station, a narrow (1 degree in latitude) proton arc was observed. Irregular pulsations of the diminishing periods (IPDPs) in the range of Pc1 geomagnetic pulsations associated with the injection of energetic protons were recorded simultaneously at Zhigansk and Yakutsk stations. This is the first report when STEVE (Strong Thermal Emission Velocity Enhancement) was observed in the course of a substorm with the onset at 12:45 UT after the decay of Pc1-associated proton arc. It is shown that the proton arc and geomagnetic pulsations are a consequence of ion-cyclotron instability in the area of the outer plasmasphere overlapping by energetic protons.Varlamov IlyaParnikov StanislavIevenko IgorBaishev DmitryShiokawa KazuoEDP SciencesarticlePhysicsQC1-999ENEPJ Web of Conferences, Vol 254, p 02012 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Varlamov Ilya Parnikov Stanislav Ievenko Igor Baishev Dmitry Shiokawa Kazuo Registration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 2017
description	Data of synchronous geomagnetic pulsations and proton aurora registrations were analyzed during the substorm on March 1, 2017 at Zhigansk (L=4.5, induction magnetometer), Maimaga (L=4, all-sky imager and Yakutsk (L = 3.3, induction magnetometer) stations, simultaneously with satellite measurement of EMIC waves. Ground-based registration of proton aurora is very difficult due to the fact that their intensity is much lower than the aurora intensity caused by precipitations of electrons, but in the event of substorm activity at the zenith of Maimaga station, a narrow (1 degree in latitude) proton arc was observed. Irregular pulsations of the diminishing periods (IPDPs) in the range of Pc1 geomagnetic pulsations associated with the injection of energetic protons were recorded simultaneously at Zhigansk and Yakutsk stations. This is the first report when STEVE (Strong Thermal Emission Velocity Enhancement) was observed in the course of a substorm with the onset at 12:45 UT after the decay of Pc1-associated proton arc. It is shown that the proton arc and geomagnetic pulsations are a consequence of ion-cyclotron instability in the area of the outer plasmasphere overlapping by energetic protons.
format	article
author	Varlamov Ilya Parnikov Stanislav Ievenko Igor Baishev Dmitry Shiokawa Kazuo
author_facet	Varlamov Ilya Parnikov Stanislav Ievenko Igor Baishev Dmitry Shiokawa Kazuo
author_sort	Varlamov Ilya
title	Registration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 2017
title_short	Registration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 2017
title_full	Registration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 2017
title_fullStr	Registration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 2017
title_full_unstemmed	Registration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 2017
title_sort	registration of synchronous geomagnetic pulsations and proton aurora during the substorm on march 1, 2017
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/8d3cb35aa2b147ccbde5cd4ac3a7e91c
work_keys_str_mv	AT varlamovilya registrationofsynchronousgeomagneticpulsationsandprotonauroraduringthesubstormonmarch12017 AT parnikovstanislav registrationofsynchronousgeomagneticpulsationsandprotonauroraduringthesubstormonmarch12017 AT ievenkoigor registrationofsynchronousgeomagneticpulsationsandprotonauroraduringthesubstormonmarch12017 AT baishevdmitry registrationofsynchronousgeomagneticpulsationsandprotonauroraduringthesubstormonmarch12017 AT shiokawakazuo registrationofsynchronousgeomagneticpulsationsandprotonauroraduringthesubstormonmarch12017
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Registration of synchronous geomagnetic pulsations and proton aurora during the substorm on March 1, 2017

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