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Spatial Inhomogeneity in Solar Faculae

Published online by Cambridge University Press:  24 July 2018

A. Elek ,
N. Gyenge ,
M. B. Korsós  and
R. Erdélyi
A. Elek
Affiliation:
Debrecen Heliophysical Observatory (DHO), Konkoly Observatory, Research Centre for Astronomy and Earth Sciences Hungarian Academy of Sciences, Debrecen, P.O.Box 30, H-4010, Hungary email: [email protected] Dept. of Astronomy, Eötvös L. University, Pázmány P. sétány 1/A, Budapest, H1117, Hungary
N. Gyenge
Affiliation:
Debrecen Heliophysical Observatory (DHO), Konkoly Observatory, Research Centre for Astronomy and Earth Sciences Hungarian Academy of Sciences, Debrecen, P.O.Box 30, H-4010, Hungary email: [email protected] Solar Physics and Space Plasmas Research Centre (SP2RC), University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, England (UK)
M. B. Korsós
Affiliation:
Debrecen Heliophysical Observatory (DHO), Konkoly Observatory, Research Centre for Astronomy and Earth Sciences Hungarian Academy of Sciences, Debrecen, P.O.Box 30, H-4010, Hungary email: [email protected] Solar Physics and Space Plasmas Research Centre (SP2RC), University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, England (UK)
R. Erdélyi
Affiliation:
Solar Physics and Space Plasmas Research Centre (SP2RC), University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, England (UK) Dept. of Astronomy, Eötvös L. University, Pázmány P. sétány 1/A, Budapest, H1117, Hungary
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Abstract

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In this paper, we investigate the inhomogeneous spatial distribution of solar faculae. The focus is on the latitudinal and longitudinal distributions of these highly localised features covering ubiquitously the solar surface. The statistical analysis is based on white light observations of the Solar and Heliospheric Observatory (SOHO) and Solar Dynamics Observatory (SDO) between 1996 and 2014. We found that the fine structure of the latitudinal distribution of faculae displays a quasi-biennial oscillatory pattern. Furthermore, the longitudinal distribution of photospheric solar faculae does not show homogeneous behaviour either. In particular, the non-axisymmetric behaviour of these events show similar properties as that of the active longitude (AL) found in the distribution of sunspots. Our results, preliminary though, may provide a valuable observational constrain for developing the next-generation solar dynamo model.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S335: Space Weather of the Heliosphere: Processes and Forecasts , July 2017 , pp. 17 - 19
Copyright
Copyright © International Astronomical Union 2018 

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