A1 Refereed original research article in a scientific journal
Long-period variations in the magnetic field of small-scale solar structures
Authors: P. V. Strekalova, Yu. A. Nagovitsyn, A. Riehokainen, V. V. Smirnova
Publisher: MAIK NAUKA/INTERPERIODICA/SPRINGER
Publication year: 2016
Journal: Geomagnetism and Aeronomy
Journal name in source: GEOMAGNETISM AND AERONOMY
Journal acronym: GEOMAGN AERONOMY+
Volume: 56
Issue: 8
First page : 1052
Last page: 1059
Number of pages: 8
ISSN: 0016-7932
DOI: https://doi.org/10.1134/S0016793216080211
Abstract
Thirty small-scale structures in the solar atmosphere, i.e., facula nodes at +/-(20A degrees-46A degrees) latitudes, have been studied in order to analyze quasi-periodic variations in the magnetic field. SDO/HMI magnetograms have been used for this purpose. Long-period variations in the magnetic field strength of the considered objects in the 60-280 min range have been revealed as a result of data processing. It has been shown that there are no dependences between the magnetic field and period, nor between the magnetic field and object area. It has been assumed that the discovered variations are not natural oscillations of the magnetic field strength.
Thirty small-scale structures in the solar atmosphere, i.e., facula nodes at +/-(20A degrees-46A degrees) latitudes, have been studied in order to analyze quasi-periodic variations in the magnetic field. SDO/HMI magnetograms have been used for this purpose. Long-period variations in the magnetic field strength of the considered objects in the 60-280 min range have been revealed as a result of data processing. It has been shown that there are no dependences between the magnetic field and period, nor between the magnetic field and object area. It has been assumed that the discovered variations are not natural oscillations of the magnetic field strength.
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