مورد إلكتروني
Superfast precipitation of energetic electrons in the radiation belts of the Earth.
| العنوان: | Superfast precipitation of energetic electrons in the radiation belts of the Earth. |
|---|---|
| المؤلفون: | Zhang, Xiao-Jia |
| المصدر: | Nature communications; vol 13, iss 1, 1611; 2041-1723 |
| بيانات النشر: | eScholarship, University of California 2022-03-01 |
| تفاصيل مُضافة: | Zhang, Xiao-Jia Artemyev, Anton Angelopoulos, Vassilis Tsai, Ethan Wilkins, Colin Kasahara, Satoshi Mourenas, Didier Yokota, Shoichiro Keika, Kunihiro Hori, Tomoaki Miyoshi, Yoshizumi Shinohara, Iku Matsuoka, Ayako |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Energetic electron precipitation from Earth's outer radiation belt heats the upper atmosphere and alters its chemical properties. The precipitating flux intensity, typically modelled using inputs from high-altitude, equatorial spacecraft, dictates the radiation belt's energy contribution to the atmosphere and the strength of space-atmosphere coupling. The classical quasi-linear theory of electron precipitation through moderately fast diffusive interactions with plasma waves predicts that precipitating electron fluxes cannot exceed fluxes of electrons trapped in the radiation belt, setting an apparent upper limit for electron precipitation. Here we show from low-altitude satellite observations, that ~100 keV electron precipitation rates often exceed this apparent upper limit. We demonstrate that such superfast precipitation is caused by nonlinear electron interactions with intense plasma waves, which have not been previously incorporated in radiation belt models. The high occurrence rate of superfast precipitation suggests that it is important for modelling both radiation belt fluxes and space-atmosphere coupling. |
| مصطلحات الفهرس: | article |
| URL: | |
| الإتاحة: | Open access content. Open access content public |
| ملاحظة: | application/pdf Nature communications vol 13, iss 1, 1611 2041-1723 |
| أرقام أخرى: | CDLER oai:escholarship.org:ark:/13030/qt8xq8z0g8 qt8xq8z0g8 https://escholarship.org/uc/item/8xq8z0g8Test https://escholarship.orgTest/ 1367462571 |
| المصدر المساهم: | UC MASS DIGITIZATION From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1367462571 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |