This illustration shows 'quasi-parallel' (top) and 'quasi-perpendicular' (bottom) magnetic field conditions at a planetary bow shock. Bow shocks are shockwaves created when the solar wind blows on a planet's magnetic field.
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Magnetic Fields and Bow Shocks (Illustration)

This illustration shows "quasi-parallel" (top) and "quasi-perpendicular" (bottom) magnetic field conditions at a planetary bow shock. Bow shocks are shockwaves created when the solar wind blows on a planet's magnetic field.

Under quasi-parallel conditions, the planet's magnetic field is roughly pointing toward the shock surface, almost parallel to a vector at right angles to the shock front (red arrow). Under quasi-perpendicular conditions, the magnetic field is close to aligned with the shock surface, that is, almost perpendicular to the shock vector.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. JPL manages the mission for NASA's Science Mission Directorate, Washington. JPL is a division of the California Institute of Technology, Pasadena.

For more information about the Cassini-Huygens mission, visit http://www.nasa.gov/cassini and http://saturn.jpl.nasa.gov/.

Image details

ID#:
PIA16825

Date added:
2013-02-19

Target:
Saturn

Mission:
Cassini-Huygens

Spacecraft:
Cassini Orbiter

Rating:



Views:
1,915

Full-Res TIFF:
PIA16825.tif (5.53 MB)

Full-Res JPG:
PIA16825.jpg (0.17 MB)

Image credit:
ESA