کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8142332 | 1523887 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aerosols: The key to understanding Titan's lower ionosphere
ترجمه فارسی عنوان
آئروسل: کلید درک یونوسفر پایین تیتان است
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
تیتان، اشعه های طنز، آئروسل ها، غلظت شارژ، یون کره،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
چکیده انگلیسی
The Permittivity Wave and Altimetry system on board the Huygens probe observed an ionospheric hidden layer at a much lower altitude than the main ionosphere during its descent through the atmosphere of Titan, the largest satellite of Saturn. Previous studies predicted a similar ionospheric layer. However, neither previous nor post-Huygens theoretical models have been able to reproduce the measurements of the electrical conductivity and charge densities reported by the Mutual Impedance (MI) and Relaxation Probe (RP) sensors. The measurements were made from an altitude of 140â¯km down to the ground and show a maximum of charge densities of â2Ã109 mâ3 positive ions and â450Ã106 mâ3 electrons at approximately 65â¯km. Such a large difference between positive and negative charge densities has not yet been understood. Here, by making use of electron and ion capture processes in to aerosols, we are able to model both electron and positive ion number densities and to reconcile experimental data and model results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 153, April 2018, Pages 157-162
Journal: Planetary and Space Science - Volume 153, April 2018, Pages 157-162
نویسندگان
G.J. Molina-Cuberos, S. Cardnell, A.J. GarcÃa-Collado, O. Witasse, J.J. López-Moreno,