A Study of Long-Term Solar Activity at 37 GHz

Baltic astronomy

article

J. Kallunki¹  N. Lavonen¹  E. Järvelä¹  M. Uunila¹ 

[1] Aalto University;University of Turku

关键词: Sun;    activity;    radio radiation;    differential rotation;   

DOI  :  10.1515/astro-2017-0384

来源: Institute of Theoretical Physics and Astronomy

【 摘 要 】

In this paper we investigate the solar activity at the radio frequency (37 GHz) using an extensive data series (solar radio maps) from the Metsähovi Radio Observatory. This paper aims to present this unique solar radio map collection to the public knowledge. The data set covers the years from 1978 to 2011 (solar cycles 21–24). We investigate the long-term solar activity on the ground of the distribution of solar radio brightenings and the differential rotation of the Sun.

【 授权许可】

Unknown