Skip to main content Accessibility help
×
Home

Association of calcium network brightness with polar magnetic fields

  • Nancy Narang (a1), Kalugodu Chandrashekhar (a1), Vaibhav Pant (a1) and Dipankar Banerjee (a1)

Abstract

Recent dedicated HINODE polar region campaign revealed the presence of concentrated kilogauss patches of magnetic field in the polar regions of Sun which are also shown to be correlated with facular bright points at the photospheric level. In this work, we demonstrate that this spatial intermittency of the magnetic field persists even up to the chromospheric heights. Polar network bright points are the ones which are present in the polar regions of the Sun (above 70° latitudes). We use special HINODE campaigns devoted to observe polar regions of the Sun to study the polar network bright points during the phase of last extended solar minimum. We are able to find a considerable association between the polar network bright points and magnetic field concentrations which led us to conclude that these bright points can serve as a good proxy for polar magnetic fields where the direct and regular measurements of polar magnetic fields are not available (before 1970).

Copyright

References

Hide All
Rieutord, M. & Rincon, F., 2010 Living Reviews in Solar Physics, 7
Simon, G. W. & Leighton, R. B., 1964 ApJ, V140, P1120.
Tsuneta, S., Ichimoto, K., Katsukawa, Y., Lites, B. W., Matsuzaki, K., Nagata, S., Orozco Suárez, D., Shimizu, T., Shimojo, M., Shine, R. A., Suematsu, Y., Suzuki, T. K., Tarbell, T. D., & Title, A. M., 2008 ApJ, V688, P1374-1381.
Kaithakkal, A. J. and Suematsu, Y. and Kubo, M. and Shiota, D. and Tsuneta, S., 2013 ApJ, V776, P122.
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

Association of calcium network brightness with polar magnetic fields

  • Nancy Narang (a1), Kalugodu Chandrashekhar (a1), Vaibhav Pant (a1) and Dipankar Banerjee (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed