Role of solar wind on the ionic escaping from Venus upper ionosphere via plasma wakefield
| العنوان: | Role of solar wind on the ionic escaping from Venus upper ionosphere via plasma wakefield |
|---|---|
| المؤلفون: | N A El-Shafeay, W M Moslem, W F El-Taibany, S K El-Labany |
| المصدر: | Physica Scripta. 98:035603 |
| بيانات النشر: | IOP Publishing, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Condensed Matter Physics, Mathematical Physics, Atomic and Molecular Physics, and Optics |
| الوصف: | According to the observations that detected significant ionospheric escape from Venus, a test charge approach is suggested to explain the ionic loss caused by the solar wind (SW) interaction with the Venusian upper ionosphere. The proposed plasma system consists of two positive planetary ions (H + and O +) with isothermal electrons and streaming SW protons, with Maxwellian electrons. The electrostatic Debye screening and wakefield potentials caused by a moving test charge as well as the modified dielectric constant of the ion-acoustic waves (IAWs) created in the model are derived. The normalized Debye potential is found to decrease exponentially with the axial distance. Whereas the amplitude of the wakefield potential is amplified with the altitudes and decreases with increasing the density of either planetary oxygen or the SW protons but it is enhanced by SW electrons number density. However, the wakefield amplitude is not affected by the SW protons velocity or their temperatures because the SW protons velocity is fast compared with the velocity of the plasma system. Thus, the properties of the ions escaping are affected by the velocity variations within a certain range called the velocity scale window. The obtained results are found to be in a good agreement with the observed data. |
| تدمد: | 1402-4896 0031-8949 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::4966e4c97f8bf21c7c3b6edb4c7a60d8 https://doi.org/10.1088/1402-4896/acb406 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........4966e4c97f8bf21c7c3b6edb4c7a60d8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14024896 00318949 |
|---|