Conductivities of Titan's Dusty Ionosphere
| العنوان: | Conductivities of Titan's Dusty Ionosphere |
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| المؤلفون: | Oleg Shebanits, J. H. Waite, Michele Dougherty, Jan-Erik Wahlund |
| المصدر: | Journal of Geophysical Research: Space Physics. 127 |
| بيانات النشر: | American Geophysical Union (AGU), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Physics, Solar System, ionosphere, Plasma, Fusion, Plasma and Space Physics, Physics::Geophysics, Astrobiology, symbols.namesake, Fusion, plasma och rymdfysik, Geophysics, Physics::Plasma Physics, Space and Planetary Science, dusty plasma, Physics::Space Physics, symbols, Astrophysics::Solar and Stellar Astrophysics, Cassini, Astrophysics::Earth and Planetary Astrophysics, conductivity, Ionosphere, Titan (rocket family), Titan |
| الوصف: | Titan's ionosphere hosts a globally distributed non-trivial dusty ion-ion plasma, providing an environment for studies of dusty ionospheres that is in many aspects unique in our solar system. Thanks to the Cassini mission, Titan's ionosphere also features one of the largest dusty plasma data sets from 126 flybys of the moon over 13 years, from 2004 to 2017. Recent studies have shown that negatively charged dust dramatically alters the electric properties of plasmas, in particular planetary ionospheres. Utilizing the full plasma content of the moon's ionosphere (electrons, positive ions, and negative ions/dust grains), we derive the electric conductivities and define the conductive dynamo region. Our results show that using the full plasma content increases the Pedersen conductivities at similar to 1,100-1,200 km altitude by up to 35% compared to the estimates using only electron densities. The Hall conductivities are in general not affected but several cases indicate a reverse Hall effect at similar to 900 km altitude (closest approach) and below. The dayside conductivities are shown to be factor similar to 7-9 larger than on the nightside, owing to higher dayside plasma densities. |
| وصف الملف: | application/pdf |
| تدمد: | 2169-9402 2169-9380 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e23de6e61292f30c0c06875ba9d7f9ba https://doi.org/10.1029/2021ja029910 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....e23de6e61292f30c0c06875ba9d7f9ba |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21699402 21699380 |
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