Mars and Solar Wind Magnetic Fields Reconnection Twists Mars

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Mars and Solar Wind Magnetic Fields Reconnection Twists Mars

Unread postby Maol » Fri Oct 20, 2017 1:33 pm

Mars and Solar Wind Magnetic Fields Reconnection Twists Mars' Magnetotail 45 Degrees

Interesting, this description of Mars' magnetic fields and interaction with the SW. This same combination of ions from the wind and the planetary body is likely happening with other solar system objects, comets and asteroids.

Mars has an invisible magnetic "tail" that is twisted by interaction with the solar wind, according to new research using data from NASA's MAVEN spacecraft.

...... snip ...... read the link

The team found that a process called "magnetic reconnection" must have a big role in creating the Martian magnetotail because, if reconnection were occurring, it would put the twist in the tail.

..... more snipping ....

"Our model predicted that magnetic reconnection will cause the Martian magnetotail to twist 45 degrees from what's expected based on the direction of the magnetic field carried by the solar wind," said DiBraccio. "When we compared those predictions to MAVEN data on the directions of the Martian and solar wind magnetic fields, they were in very good agreement."

........ and snip again .....

The magnetic reconnection process also might propel some of Mars' atmosphere into space. Mars' upper atmosphere has electrically charged particles (ions). Ions respond to electric and magnetic forces and flow along magnetic field lines. Since the Martian magnetotail is formed by linking surface magnetic fields to solar wind fields, ions in the Martian upper atmosphere have a pathway to space if they flow down the magnetotail. Like a stretched rubber band suddenly snapping to a new shape, magnetic reconnection also releases energy, which could actively propel ions in the Martian atmosphere down the magnetotail into space.

Read more at: https://phys.org/news/2017-10-maven-mis ... l.html#jCp


I think it has been discussed in here before, that cometary bodies' comas are formed in part by the SW magnetic field stripping ions from the body.
Maol
 
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