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- Title
Excess of Sodium Ions Density Required to Create a Wide Current at the Hermean Magnetopause.
- Authors
Belenkaya, Elena; Pensionerov, Ivan; Alexeev, Igor; Parunakian, David
- Abstract
In this paper we consider an unusual structure, twice observed at the magnetopause of Mercury, and called the "Double Magnetopause". Presumably, it is associated with a current sheet created by Na+ ions. Two alternative scenarios are considered. The first one: Sodium ions prevail outside the Hermean magnetosphere. The second: Sodium ions predominate inside the magnetosphere of Mercury. These ions have been observed inside and outside the magnetosphere. We analyze what Na+ density excess can be sufficient for creation of a wide diamagnetic magnetopause current and on which side of the magnetopause this current is located. For each scenario, two directions of the north-south (Z) component of the solar wind magnetic field are considered.
- Subjects
SODIUM ions; MAGNETOSPHERE; MAGNETIC fields; SOLAR wind; MERCURY
- Publication
Universe (2218-1997), 2021, Vol 7, Issue 10, p1
- ISSN
2218-1997
- Publication type
Article
- DOI
10.3390/universe7100355