Magnetic Field of Solar Corona unveiled

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The researchers in the University of Hawaii Institute for Astronomy have studied the interplanetary space of the sun called solar corona.

Notable Points

  • The charged particles that are radiating from the surface of the sun is called solar wind.
  • These particles expand and fill in entire solar system.
  • The properties of solar corona are completely dependent on the magnetic field of the sun.
  • The magnetic field is produced in the interior and extends outward.

Key Findings of the study

  • The Solar Corona can be easily seen during a solar eclipse.
  • The magnetic field lines of solar corona were recorded for over 14 eclipses that occurred in 2 decades.
  • According to the observations, during the periods of minimum solar activity, the corona field came straight out of the sun near the equator and poles.
  • During the maximum solar activity, the magnetic field was radial.

Why is the study big?

  • The study has become highly important as so far it was assumed that the coronal magnetic field is radial beyond 2.5 solar radii.
  • The study has found that the coronal magnetic field is non-radial to at least 4 solar radii.

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