Modulation of radio source radiation at a frequency of 37 GHz by long-period oscillations of a nearby sunspot - UTU Research Portal

A1 Refereed original research article in a scientific journal

Modulation of radio source radiation at a frequency of 37 GHz by long-period oscillations of a nearby sunspot

Authors: Smirnova VV, Solov'ev AA, Riehokainen A, Kallunki J

Publisher: Maik Nauka/Interperiodica/Springer

Publication year: 2015

Journal: Geomagnetism and Aeronomy

Journal name in source: GEOMAGNETISM AND AERONOMY

Journal acronym: Geomagn Aeronomy

Volume: 55

Issue: 7

First page : 991

Last page: 994

Number of pages: 4

ISSN: 0016-7932

eISSN: 1555-645X

DOI: https://doi.org/10.1134/S001679321507021X

Abstract

The phenomenon of time delays of long-period variations of the millimeter emission of near-sunspot and intersunspot radio sources with respect to variations of the magnetic field strength of nearby photospheric sunspots was studied. The physical interpretation of this phenomenon within a novel concept of the magnetic structure of a sunspot (the model of three magnetic fluxes) is provided.