Nakariakov, V. M. (Valery M.), Inglis, Andrew R., Zimovets, I. V., Foullon, C. (Claire), Verwichte, E. (Erwin), Sych, R. and Myagkova, I. N.. (2010) Oscillatory processes in solar flares. Plasma Physics and Controlled Fusion, Vol.52 (No.12, Pt.1). article no. 124009. ISSN 0741-3335

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Abstract

Electromagnetic (radio, visible-light, UV, EUV, x-ray and gamma-ray) emission generated by solar and stellar flares often contains pronounced quasi-periodic pulsations (QPPs). Physical mechanisms responsible for the generation of long-period QPP (with periods longer than 1 s) are likely to be associated with MHD processes. The observed modulation depths, periods and anharmonicity of QPP suggest that they can be linked with some kind of MHD auto-oscillations, e. g. an oscillatory regime of magnetic reconnection. Such regimes, of both spontaneous and induced nature, have been observed in resistive-MHD numerical simulations. The oscillations are essentially nonlinear and non-stationary. We demonstrate that a promising novel method for their analysis is the empirical mode decomposition technique.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Solar flares, Solar oscillations, Electromagnetic waves, Magnetohydrodynamics
Journal or Publication Title:	Plasma Physics and Controlled Fusion
Publisher:	Institute of Physics Publishing Ltd.
ISSN:	0741-3335
Date:	December 2010
Volume:	Vol.52
Number:	No.12, Pt.1
Number of Pages:	7
Page Range:	article no. 124009
Identification Number:	10.1088/0741-3335/52/12/124009
Status:	Peer Reviewed
Publication Status:	Published
Funder:	Royal Society (Great Britain), Science and Technology Facilities Council (Great Britain) (STFC), Rossiĭskiĭ fond fundamentalʹnykh issledovaniĭ [Russian Foundation for Basic Research] (RFBR)
Grant number:	10-02-01285-a (RFBR), 10-02-00153-a (RFBR)
Version or Related Resource:	Presented at: 37th European Physical Society Conference on Plasma Physics, Univ Campus, Dublin, Ireland, 22-25 Jun 2010
Conference Paper Type:	Paper
Type of Event:	Conference
References:	[1] Benz A O 2008 Living Rev. Sol. Phys. 5 1 [2] Nakariakov V M and Melnikov V F 2009 Space Sci. Rev. 149 119 [3] Verwichte E, Foullon C, Van Doorsselaere T, Smith H M and Nakariakov V M 2009 Plasma Phys. Control. Fusion 51 124019 [4] Hastie R J 1997 Astrophys. Space Sci. 256 177 [5] Nakariakov V M, Aschwanden M J and Van Doorsselaere T 2009 Astron. Astrophys. 502 661 [6] Egedal J, Fox W, Porkolab M and Fasoli A 2005 Phys. Plasmas 12 052107 [7] Chin R, Verwichte E, Rowlands G and Nakariakov V M 2010 Phys. Plasmas 17 032107 [8] Aschwanden M J 1987 Sol. Phys. 111 113 [9] Aschwanden M J 2002 Space Sci. Rev. 101 1 [10] Zaitsev V V and Stepanov A V 2008 Phys.—Usp. 51 1123 [11] Zimovets I V and Struminsky A B 2009 Sol. Phys. 258 69 [12] Inglis A R and Nakariakov V M 2009 Astron. Astrophys. 493 259 [13] Foullon C et al 2010 Astrophys. J. 719 151 [14] Nakariakov V M, Foullon C, Myagkova I N and Inglis A R 2010 Astrophys. J. 708 L47 [15] Tajima T, Sakai J, Nakajima H, Kosugi T, Brunel F and Kundu M R 1987 Astrophys. J. 321 1031 [16] Kliem B, Karlick´y M and Benz A O 2000 Astron. Astrophys. 360 715 [17] Arber T D and Haynes M 2006 Phys. Plasmas 13 112105 [18] Samtaney R, Loureiro N F, Uzdensky D A, Schekochihin A A and Cowley S C 2009 Phys. Rev. Lett. 103 105004 [19] Murray M J, van Driel-Gesztelyi L and Baker D 2009 Astron. Astrophys. 494 329 [20] Ofman L and Sui L 2006 Astrophys. J. 644 L149 [21] McLaughlin J A, De Moortel I, Hood A W and Brady C S 2009 Astron. Astrophys. 493 227 [22] Craig I J D andMcClymont A N 1991 Astrophys. J. 371 L41 [23] Foullon C, Verwichte E, Nakariakov V M and Fletcher L 2005 Astron. Astrophys. 440 L59 [24] McLaughlin J A and Hood A W 2004 Astron. Astrophys. 420 1129 [25] Nakariakov V M, Foullon C, Verwichte E and Young N P 2006 Astron. Astrophys. 452 343 [26] Chen P F and Priest E R 2006 Sol. Phys. 238 313 [27] Sych R, Nakariakov V M, Karlicky M and Anfinogentov S 2009 Astron. Astrophys. 505 791 [28] Huang N E et al 1998 R. Soc. Lond. Proc. A 454 903 [29] Terradas J, Oliver R and Ballester J L 2004 Astrophys. J. 614 435 [30] Inglis A R 2009 Quasi-periodic pulsations in solar flares PhD Thesis University of Warwick
URI:	http://wrap.warwick.ac.uk/id/eprint/4774

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