Formation of polarization jet during injection of ions into the inner magnetosphere
Вернуться к старой версии сайта https://old.nlrs.ru/

Loading...

QR-код документа

Как сканировать QR-код?

Для пользователей Android:
  1. Скачайте приложение для сканирования QR-кодов (Google Play)
  2. Откройте скачанное приложение;
  3. Наведите камеру на QR-код.
Для пользователей iPhone:
  1. Откройте приложение "Камера";
  2. Наведите камеру на QR-код;
  3. Нажмите на всплывающее уведомление.
Обложка электронного документа Formation of polarization jet during injection of ions into the inner magnetosphere

Доступ к документу возможен только в стенах библиотеки

Formation of polarization jet during injection of ions into the inner magnetosphere

Доступ
Закрытый
DOI
10.1016/S0273-1177(03)00016-4
Аннотация
Long-lasting ground based measurements of a polarization jet (PJ) by the latitudinal chain of ionospheric stations in Yakutia (3 < L < 5; MLT = UT + 9 h) and by 5 subauroral Russian stations were analyzed. A number of cases were found when PJ was recorded simultaneously with energetic ion observations by AMPTE/CCE and INTERBALL 2. The data comparison shows that at least in the considered cases of strong magnetic substorms, PJ was accompanied by strong injection of ions with the energy of ~20-50 keV and intensity of ~10 cm-² c-¹ sr-¹keV-¹. Close to the injection region in the near midnight sector no ion dispersion was observed, but in the evening sector nose events were detected. In accordance with the mechanism suggested by Southwood and Wolf (JGR, 1978, 83, 5227) PJ was observed near the equatorial boundary of energetic ion penetration into the magnetosphere. Measurements by ionosonds at different longitudes show that the westward velocity of the frontt of PJ development is close to the gradient drift velocity of 20 keV ions (forming nose events). Thus, the physical mechanism of PJ formation due to energetic ion injection during a strong substorm burst is experimentally confirmed. Satellite measurements show that in the near midnight sector energetic ions reach the shell L=3.0 in 20-30 minutes after a substorm commencement with AE>500 nT.
  • Библиографическая запись

Formation of polarization jet during injection of ions into the inner magnetosphere / V. L. Khalipov, Yu. I. Galperin, A. E. Stepanov, E. D. Bondar // Physics of auroral phenomena : proceedings of the 25th annual seminar, Apatity, 26 February – 1 March 2002. – 2002. – P. 43-46.