The Relationship of Magnetospheric Parameters with Cosmic-Ray Cutoff Rigidities Depending on Latitude

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Resumo

We have studied the features of the latitudinal behavior of geomagnetic thresholds of cosmic rays R, as well as their sensitivity to the interplanetary medium and magnetospheric parameters during three phases of the magnetic storm on September 7–8, 2017, in the initial, main, and recovery phases. For this purpose, values of R were calculated in two different ways—by the method of spectrographic global survey (Rsgs) and by the method of tracing the trajectories of cosmic-ray (CR) particles in the model magnetic field (Ref). The maximum lowering of thresholds is observed at the storm maximum (Dst = –142 nT), reaching the values of ΔRsgs = –0.52 GV and ΔRef = –0.66 GV. The curve of ΔRsgs variations, depending on the observation station (latitude) cutoff rigidity, assumes a classical form with a maximum dropping the thresholds at midlatitudinal stations. ΔR correlates most strongly with the Dst index, which indicates that the ring current plays a main part in the dependence of variations of CR cutoff rigidities. The significant influence of solar-wind velocity V and interplanetary magnetic field (IMF) parameters on ΔRsgs and ΔRef is also seen. In the main phase, ΔRef depends on B and Bz of the IMF, and ΔRsgs depends on B and By. For ΔRsgs, the correlation with electromagnetic parameters varies, depending on the observation station, in a regular manner. There is no such tendency for ΔRef.

Sobre autores

O. Danilova

St. Petersburg Branch of Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Sciences, 191023, St. Petersburg, Russia

Email: md1555@mail.ru
Россия, Санкт-Петербург

N. Ptitsyna

St. Petersburg Branch of Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Sciences, 191023, St. Petersburg, Russia

Email: md1555@mail.ru
Россия, Санкт-Петербург

M. Tyasto

St. Petersburg Branch of Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Sciences, 191023, St. Petersburg, Russia

Email: md1555@mail.ru
Россия, Санкт-Петербург

V. Sdobnov

Institute of Solar-Terrestrial Physics, Siberian Branch, Russian Academy of Sciences, 664033, Irkutsk, Russia

Autor responsável pela correspondência
Email: md1555@mail.ru
Россия, Иркутск

Bibliografia

  1. Dorman L.I. Elementary particle and cosmic ray physics. Elsevier. New York. 1963. 456 p.
  2. Kress B.T., Hudson M.K., Selesnick R.S. et al. Modeling geomagnetic cutoffs for space weather applications // J. Geophys. Res. 2015. V. 120. № 7. P. 5694–5702. https://doi.org/10.1002/2014JA020899
  3. Буров В.А., Мелешков Ю.С., Очелков Ю.П. Методика оперативной оценки уровня радиационной опасности, обусловленной возмущениями космической погоды, при авиаперевозках // Гелиогеофизические исслед. 2005. Вып. 7. С. 1–41.
  4. Iucci N., Levitin A.E., Belov A.V. et al. Space weather conditions and spacecraft anomalies in different orbits // Space weather. 2005. V. 3. S01001. https://doi.org/10.1029/2003SW000056
  5. Mask E. Starship: Earth to Earth in less than 60 minutes. // 68th International Astronautic Congress. Adelaide, Australia. 25–29 Sep. 2017.
  6. Flueckiger E.O., Shea M.A., Smart D.F. On the latitude dependence of cosmic ray cutoff rigidiy variations during the initial phase of a geomagnetic storm // Proc. 20th Int. Conf. Cosmic Rays. August 1987. Moscow. USSR. 1987. V. 4. P. 2016–2020.
  7. Antonova O.F., Baisultanova L.M., Belov A.V. et al. The longitude and latitude dependences of the geomagnetic cutoff rigidity variations during strong magnetic storms // Proc. 21st Int. Cosmic Ray Conf. January 1990. Adelaide, Australia. V. 7. P. 10–13.
  8. Belov A., Baisultanova L., Eroshenko E. et al. Magnetospheric effects in cosmic rays during the unique magnetic storm on November 2003 // J. Geophys. Res. 2005. V. 110. A09S20. https://doi.org/10.1029/2005JA011067
  9. Данилова О.А., Демина И.А., Птицына Н.Г. и др. Картирование жесткости обрезания космических лучей во время главной фазы магнитной бури 20 ноября 2003 г. // Геомагнетизм и аэрономия. 2019. Т. 59. № 2. З. С. 160–167. https://doi.org/10.1134/S0016794019020056
  10. Яновский Б.М. Земной магнетизм. (4-ое издание). Изд. Ленинградского Университета, Ленинград. 1978. 592 стр.
  11. Shea M.A., Smart D.F., McCracken K.G. A study of vertical cutoff rigidities using sixth degree simulations of the geomagnetic field // J. Geophys. Res. 1965. V. 70. P. 4117–4130.
  12. Tsyganenko N.A. A model of the near magnetosphere with a dawn-dusk asymmetry: 1. Mathematical structure // J. Geophys. Res. 2002a. 107. A8. https://doi.org/10.1029/2001JA000219
  13. Tsyganenko N.A. A model of the near magnetosphere with a dawn-dusk asymmetry: 2. Parametrization and fitting to observation // J. Geophys. Res. 2002b. 107. A8. https://doi.org/10.1029/2001JA000220
  14. Dvornikov V.M., Kravtsova M.V., Sdobnov V.E. Diagnostics of the electromagnetic characteristics of the interplanetary medium based on cosmic ray effects // Geomagn. Aeron. (Engl. Transl.). 2013. V. 53, iss. 4. P. 430–440.
  15. King J.H., Papitashvili N.E. Solar wind spatial scales in and comparisons of hourly Wind and ACE plasma and magnetic field data //JGR. 2005. V. 110. A02104. https://doi.org/10.1029/2004JA010649
  16. Chertok I.M., Belov A.V., Abunin A.A. Solar Eruptions, Forbush Decreases and Geomagnetic Disturbances from Outstanding Active Region 12673// Space Weather. 2018. V. 16. P. 1549–1568. https://doi.org/10.1029/2018SW001899
  17. Hajra R., Tsurutani B.T., Lakhina G.S. The Complex Space Weather Events of 2017 September // ApJ. 2020. V. 899. № 1. https://doi.org/10.3847/1538-4357/aba2c5
  18. Kudela K., Bucik R. Low Energy Cosmic Rays and the Disturbed Magnetosphere // Proc. 2nd Int. Symp. SEE-2005. Nor-Amberd, Armenia. 2005. P. 57–62. https://arxiv.org/pdf/1303.4052.pdf
  19. Левитин А.Е., Дремухина Л.А., Громова Л.И. и др. Генерация магнитного возмущения в период исторической магнитной бури в сентябре 1859 г. // Геомагнетизм и аэрономия. 2014. Т. 54. № 3. с. 324–332. https://doi.org/10.7868/S0016794014030110
  20. Ganushkina N.Y., Liemohn M.W., Dubyagin S. Current systems in the Earth’s magnetosphere // Reviews of Geophysics. 2018. V. 56. P 309–332. https://doi.org/10.1002/2017RG000590
  21. Borovsky J.E., Thomsen M.F., Elphic R.C. et al. The transport of plasma sheet material from the distant tail to geosynchronous orbit // J. Geophys. Res. 1998. V. 103. A9. P. 20297–20331.
  22. Птицына Н.Г., Данилова О.А., Тясто М.И. и др. Влияние параметров солнечного ветра и геомагнитной активности на вариации жесткости обрезания космических лучей во время сильных магнитных бурь // Геомагнетизм и аэрономия. 2019. Т. 59. № 5. С. 569–577. https://doi.org/10.1134/S0016793219050098
  23. Liemohn M.W., Kozyra J.U., Thomsen M.F. et al. Dominant role of the asymmetric ring current in producing stormtime Dst // J. Geophys. Res. 2001. V. 106. A6. P. 10.883–10.904. https://doi.org/10.1029/2000JA000326
  24. Burton R.K., McPherron R.L., Russell C.T. An empirical relationship between interplanetary conditions and Dst // J. Geophys. Res. 1975. V. 80. Is. 31. P. 4204–4214. https://doi.org/10.1029/JA080i031p04204
  25. Siscoe G.L., McPherron R.L., Jordanova V.K. Diminished contribution of ram pressure to Dst during magnetic storms // J. Geophys. Res. 2005. V. 110 P. A12227. https://doi.org/10.1029/2005JA011120
  26. DuByagin S., Ganushkina N., Kubyshkina M. et al. Contribution from different current systems to SYM and ASY midlatitude indices // J. Geophys. Res. 2014. V. 119. P. 7243–7263. https://doi.org/10.1002/2014JA020122
  27. Ohtani S., Nose M., Rostoker G. et al. Storm-substorm relationship:Contribution of the tail current to Dst // J. Geophys. Res. 2001. V. 106. A10. P. 21199–21209. https://doi.org/10.1029/2000JA000400
  28. Turner N.E., Baker D.N., Pulkkinen T.I. et al. Evaluation of the tail current contribution to Dst // J. Geophys. Res. 2000. V. 105. № A3. P. 5431–5439. https://doi.org/10.1029/1999JA000248
  29. Птицына Н.Г., Данилова О.А., Тясто М.И. и др. Динамика жесткости обрезания космических лучей и параметров магнитосферы во время различных фаз бури 20 ноября 2003 г. // Геомагнетизм и аэрономия. 2021. Т. 61. № 2. С. 160–171. https://doi.org/10.31857/S0016794021010120
  30. Птицына Н.Г., Данилова О.А., Тясто М.И. Kорреляция жесткости обрезания космических лучей с параметрами гелиосферы и геомагнитной активности на разных фазах магнитной бури в ноябре 2004 г. // Геомагнетизм и Аэрономия. 2020. Т. 60. № 3. С. 281–292. https://doi.org/10.31857/S0016794020020145
  31. Adriani O., Barbarino G.C., Bazilevskaya G.N. et al. PAMEL-A’s measurements of geomagnetic cutoff variations during the 14 December 2006 storm // Space weather. 2016. V. 14. № 3. https://doi.org/10.1002/2016SW001364
  32. Shen C., Xu M., Wang Y. et al.. Why the Shock-ICME Complex Structure Is Important: Learning from the Early 2017 September CMEs // The Astrophysical Journal. 2018. V. 861. № 1. pp. 861–960. https://doi.org/10.3847/1538-4357/aac204
  33. Scolini C., Chane E., Temmer M. et al. CME-CME Interactions as Sources of CME Geoeffectiveness: The Formation of the Complex Ejecta and Intense Geomagnetic Storm in 2017 Early September // Astrophysical Journal Supplement Series. 2020. V. 247(1). https://doi.org/10.3847/1538-4365/ab6216

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Declaração de direitos autorais © О.А. Данилова, Н.Г. Птицына, М.И. Тясто, В.Е. Сдобнов, 2023