Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2012-02-07
Astrophysical Journal 748 (March 20, 2012)
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
Scientific paper
Inclusion of the inductive electric field, ${\bf E}_{\rm ind}$ due to the temporally changing ${\bf B}$, in magnetic explosions is discussed, with emphasis on solar flares. Several roles played by ${\bf E}_{\rm ind}$ are identified: on a global scale, ${\bf E}_{\rm ind}$ produces the EMF that drives the explosion; the associated ${\bf E}_{\rm ind}\times{\bf B}$ drift is identified with the inflow of magnetic field lines into a reconnection region; the polarization current, associated with $\partial{\bf E}_{\rm ind}/\partial t$, implies a ${\bf J}\times{\bf B}$ force that accelerates this inflow; and the component of ${\bf E}_{\rm ind}$ parallel to ${\bf B}$ accelerates the energetic electrons that cause hard X-ray emission and type III radio bursts. Some simple models that describe these effects are presented. A resolution of the long-standing "number problem" in solar flares is suggested.
No associations
LandOfFree
Magnetic explosions: role of the inductive electric field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Magnetic explosions: role of the inductive electric field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic explosions: role of the inductive electric field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-578945