Hostname: page-component-8448b6f56d-cfpbc Total loading time: 0 Render date: 2024-04-23T20:11:40.960Z Has data issue: false hasContentIssue false
  • English
  • Français

Role of the background regimes towards the Solar Mean Magnetic Field (SMMF)

Published online by Cambridge University Press:  27 November 2018

Souvik Bose Open the ORCID record for Souvik Bose [Opens in a new window]  and
K. Nagaraju
Souvik Bose
Affiliation:
Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, N-0315 Oslo, Norway Rosseland Centre for Solar Physics, University of Oslo, P.O. Box 1029 Blindern, N-0315 Oslo, Norway email: souvik.bose@astro.uio.no
K. Nagaraju
Affiliation:
Indian Institute of Astrophysics, Koramangala-2nd Block, Bangalore-560034
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The Solar Mean Magnetic Field (SMMF) is generally defined as the disc-averaged line-of-sight (LOS) magnetic field on the sun. The role of the active regions and the large-scale magnetic field structures (also called the background) has been debated over the past few decades to understand whether the origin of the SMMF is either due to the active regions or the background. We, in this paper have investigated contribution of sunspots, plages, networks and the background towards the variability of the SMMF using the datasets from the SDO-AIA & HMI, and found that 89% of the SMMF is due to the background whereas the remaining 11% originates from the active regions and the networks.

Keywords

Sun:mean magnetic fieldSun:Origin of MMFSun-as-a-starSun:photosphere
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S340: Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles , February 2018 , pp. 85 - 86
Copyright
Copyright © International Astronomical Union 2018 

References

Svalgaard, L., Wilcox, J. M., & Scherrer, P. H. 1975 Solar Physics, 45, 83Google Scholar
Gough, D. O.. 2017 Solar Physics, 292, 70Google Scholar
Scherrer, P. H., Wilcox, J. M., Kotov, V., Severny, A. B., & Howard, R., 1977, Solar Physics, 52, 6Google Scholar
Kutsenko, A. S., Abramenko, V. I., & Yurchyshyn, V. B., 2017, Solar Physics, 292, 121Google Scholar
Bose, Souvik & Nagaraju, K. 2018, ApJ, 862, 35Google Scholar
Kutsenko, A. S. & Abramenko, V. I. 2016, Solar Physics, 291, 1613Google Scholar