Results 21 to 30 of about 1,743 (137)

Seismology of curved coronal loops with vertically polarised transverse oscillations [PDF]

, 2006
Aims. Using a model of vertically polarised fast magnetoacoustic waves in curved coronal loops, the method of coronal seismology is applied to observations of transverse loop oscillations. Methods.
Foullon, C. (Claire), Nakariakov, V. M. (Valery M.), Verwichte, E. (Erwin)   +2 more
core   +1 more source

Are Quasi-periodic Pulsations Independent of Loop Oscillations in Solar Flare?

The Astrophysical Journal, 2023
We investigated oscillations in an M8.7 solar flare (SOL2014-10-22), including quasi-periodic pulsations (QPPs) in light curves and Doppler shift oscillations in the flare loops.
Fanpeng Shi, Dong Li, Zongjun Ning, Yangfan Guo, Song Feng, Jun Xu   +5 more
doaj   +1 more source

Damping mechanisms for oscillations in solar prominences [PDF]

, 2010
Small amplitude oscillations are a commonly observed feature in prominences/filaments. These oscillations appear to be of local nature, are associated to the fine structure of prominence plasmas, and simultaneous flows and counterflows are also present ...
A.J. Díaz, A.J. Díaz, A.J. Díaz, A.J. Díaz, A.J. Díaz, B. De Pontieu, B. Roberts, B.P. Pandey, D. Banerjee, D. Tripathi, D.A. Landman, E. Tandberg-Hanssen, E. Verwichte, E. Wiehr, G. Pouget, G. Verth, G.B. Field, I. Arregui, I. Arregui, I. Ballai, Iñigo Arregui, J. Andries, J. Terradas, J. Terradas, J. Terradas, J. Terradas, J.B. Zirker, J.E. Leake, J.L. Ballester, J.L. Ballester, J.L. Ballester, J.L. Ballester, J.V. Hollweg, José Luis Ballester, M. Carbonell, M. Carbonell, M. Carbonell, M. Carbonell, M. Goossens, M. Goossens, M. Goossens, M. Goossens, M. Goossens, M. Goossens, M. Luna, M. Rempel, M.J. Aschwanden, M.L. Khodachenko, M.S. Ruderman, M.V. Dymova, P. Forteza, P. Forteza, P. Gouttebroze, P. Heinzel, P.M. Edwin, P.S. Joarder, R. Erdélyi, R. Oliver, R. Soler, R. Soler, R. Soler, R. Soler, R. Soler, R. Soler, R. Soler, R. Soler, S. Blanco, S. Patsourakos, S. Régnier, S.F. Martin, S.P. James, T. Sakurai, T. Tsubaki, T. Van Doorsselaere, T.E. Berger, T.J. Okamoto, T.V. Zaqarashvili, V. Bommier, V.M. Nakariakov, V.M. Nakariakov, V.S. Bashkirtsev, W.J. Tirry, Y. Lin, Y. Lin, Y. Lin, Y. Lin, Y. Uchida, Z. Ning, Z. Yi, Z. Yi   +89 more
core   +1 more source

Torsional Alfvén waves: magneto-seismology in static and dynamic coronal plasmas [PDF]

, 2011
Aims: We study the properties of torsional Alfvén waves in coronal loops so that they may be exploited for coronal seismological applications. Methods: The governing equation is obtained for standing torsional Alfvén waves of a dynamic, gravitationally
Andries, Andries, Aschwanden, Aschwanden, Aschwanden, Banerjee, Bonet, De Moortel, Del Zanna, Dymova, Dymova, Dymova, Edwin, Erdelyi, Erdelyi, Erdélyi, Erdélyi, Erdélyi, Erdélyi, Erdélyi, Erdélyi, Erdélyi, Fedun, Goossens, Goossens, Heyvaerts, Jess, Klimchuk, M. S. Ruderman, Morton, Morton, Morton, Morton, Morton, Ofman, R. Erdélyi, R. J. Morton, Ruderman, Ruderman, Ruderman, Ruderman, Ruderman, Ruderman, Ruderman, Ruderman, Schrijver, Shelyag, Taroyan, Terradas, Terradas, Tomczyk, Tripathi, van Doorsselaere, Verth, Verth, Verth, Wang, Zaqarashvili, Zaqarashvili   +58 more
core   +1 more source

Nonlinear Fast Magnetosonic Waves in Solar Prominence Pillars

The Astrophysical Journal, 2023
We investigate the properties of nonlinear fast magnetosonic (NFM) waves in a solar prominence, motivated by recent high-resolution and high-cadence Hinode/Solar Optical Telescope (SOT) observations of small-scale oscillations in a prominence pillar.
Leon Ofman, Therese A. Kucera, C. Richard DeVore   +2 more
doaj   +1 more source

Coronal magnetic field measurement using loop oscillations observed by Hinode/EIS [PDF]

, 2008
We report the first spectroscopic detection of a kink MHD oscillation of a solar coronal structure by the Extreme-Ultraviolet Imaging Spectrometer (EIS) on the Japanese Hinode satellite. The detected oscillation has an amplitude of 1 kms−1 in the Doppler
Andries, Andries, Arregui, Aschwanden, Cirtain, Culhane, De Moortel, De Moortel, Dere, E. Verwichte, Kosugi, Landi, Mariska, McEwan, Nakariakov, Nakariakov, Nakariakov, Ofman, Ofman, Okamoto, P. R. Young, Roberts, Ruderman, T. Van Doorsselaere, Tomczyk, V. M. Nakariakov, Van Doorsselaere, Van Doorsselaere, Van Doorsselaere, Verth, Verwichte, Verwichte, Young   +32 more
core   +2 more sources

Prominence seismology using the period ratio of transverse thread oscillations [PDF]

, 2015
The ratio of the period of the fundamental mode to that of the first overtone of kink oscillations, from here on the "period ratio", is a seismology tool that can be used to infer information about the spatial variation of density along solar magnetic ...
Ballester, J. L., Goossens, M., Soler, R.   +2 more
core   +1 more source

GLOBAL CORONAL SEISMOLOGY IN THE EXTENDED SOLAR CORONA THROUGH FAST MAGNETOSONIC WAVES OBSERVED BYSTEREOSECCHI COR1

The Astrophysical Journal, 2013
We present global coronal seismology for the first time, which allows us to determine inhomogeneous magnetic field strength in the extended corona. From the measurements of the propagation speed of a fast magnetosonic wave associated with a coronal mass ejection (CME) and the coronal background density distribution derived from the polarized radiances ...
Ryun-Young Kwon, Maxim Kramar, Tongjiang Wang, Leon Ofman, Joseph M. Davila, Jongchul Chae, Jie Zhang   +6 more
openaire   +1 more source

Transverse kink oscillations of expanding coronal loops [PDF]

, 2012
We investigate the nature of transverse kink oscillations of loops expanding through the solar corona and how can oscillations be used to diagnose the plasma parameters and the magnetic field.
Andries, Andries, Archontis, Archontis, Arregui, B. Orza, Ballai, Ballai, Ballai, Ballai, Ballai, Banerjee, Chou, Diaz, Dymova, Eto, Goossens, Harra, Harra, I. Ballai, Isobe, Jing, McEwan, McEwan, Morton, Morton, Morton, Nakariakov, Okamoto, Orza, Parker, Parker, Pintér, Ramsey, Roberts, Ruderman, Ruderman, Ruderman, Ruderman, Ruderman, Ruderman, Schmidt, Tomczyk, Verth, Verth, Wang, Zwaan   +46 more
core   +2 more sources

Magneto-seismology of solar atmospheric loops by means of longitudinal oscillations

, 2012
There is increasingly strong observational evidence that slow magnetoacoustic modes arise in the solar atmosphere. Solar magneto-seismology is a novel tool to derive otherwise directly un-measurable properties of the solar atmosphere when ...
Dymova, G. Verth, M. Luna-Cardozo, R. Erdélyi, Verth   +4 more
core   +1 more source