0124730 - ASU-R 20000192 RIV NL eng J - Journal Article
Letfus, Vojtěch
Sunspot and auroral activity during maunder minimum.
Solar Physics. Roč. 197, č. 1 (2000), s. 203-213. ISSN 0038-0938. E-ISSN 1573-093X
R&D Projects: GA AV ČR KSK1003601
Institutional research plan: CEZ:AV0Z1003909
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 2.095, year: 2000

The evidence of 11-year solar cycle during the Maunder minimun was found in the butterfly diagram and detected also in geomagnetic activity. Cosmogenic izotopes 10Be and 14C confirm also the cyclocity. Most of the aurorae were produced by proton flares in regions with enhanced magnetic field but without production of sunspots.
Permanent Link: http://hdl.handle.net/11104/0022989