Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-10-30
Astronomy and Astrophysics
Astrophysics
9 pages, 3 PostScript figures
Scientific paper
Non-uniformities of plasma and magnetic field are known to cause electric currents in plasma. Electron density gradient causes diffusion current, electron temperature gradient - thermocurrent, gradient of magnetic field module - gradient current, curvature of magnetic field lines - centrifugal current. Being independent of electric field, the currents of non-uniformities may act as extraneous to cause charge separation and electric field in plasma. In cosmos, the currents of non-uniformities were observed; in particular, gradient and centrifugal currents - in magnetosphere, diffusion one - in a comet coma and in artificial plasma cloud. On present work, the gradient current was investigated more fully than earlier. Two unknown components, parallel and perpendicular to magnetic field were found. The equation for gradient current density was obtained. We compared the theoretical densities of currents of non-uniformities (with usage of electron pressure and corresponding gradients) with measured current densities (calculated as rotor of magnetic field) for sun photosphere. It follows from the comparison that the currents of non-uniformities play important, may be main, role in measured local current in photosphere. It is necessary to consider in electromagnetic models.
No associations
LandOfFree
Currents of non-uniformities in solar atmosphere 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 Currents of non-uniformities in solar atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Currents of non-uniformities in solar atmosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-229880