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Relationship between wave processes in sunspots and quasi-periodic pulsations in active region flares
- 1.0334518 - ASÚ 2010 RIV FR eng J - Journal Article
Sych, R.A. - Nakariakov, V. M. - Karlický, Marian - Anfinogentov, S.
Relationship between wave processes in sunspots and quasi-periodic pulsations in active region flares.
Astronomy & Astrophysics. Roč. 505, č. 2 (2009), s. 791-799. ISSN 0004-6361. E-ISSN 1432-0746
R&D Projects: GA AV ČR IAA300030701
Institutional research plan: CEZ:AV0Z10030501
Keywords : solar flares * particle emission * radio radiation
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 4.179, year: 2009
A phenomenological relationship between oscillations in a sunspot and quasi-periodic pulsations (QPP) in flaring energy releases at an active region (AR) above the sunspot is established. The analysis of the microwave emission recorded by the Nobeyama Radioheliograph at 17 GHz shows a gradual increase in the power of the 3-min oscillation train in the sunspot associated with AR 10756 before flares in this AR.
Permanent Link: http://hdl.handle.net/11104/0179231
Number of the records: 1