Results 21 to 30 of about 49,120 (36)

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.
Andries, Aschwanden, Aschwanden, Aschwanden, Brady, Brady, C. Foullon, Dymova, E. Verwichte, Edwin, Edwin, Goedbloed, Goossens, Katsiyannis, King, Nakariakov, Nakariakov, Nakariakov, Nakariakov, Ofman, Robbrecht, Roberts, Roberts, Ruderman, Terradas, Uchida, V. M. Nakariakov, Van Doorselaere, Verwichte, Verwichte, Verwichte, Verwichte, Wang   +32 more
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Spectral-Element and Adjoint Methods in Seismology [PDF]

, 2008
We provide an introduction to the use of the spectral-element method (SEM) in seismology. Following a brief review of the basic equations that govern seismic wave propagation, we discuss in some detail how these equations may be solved numerically based ...
Commun Comput Phys, Dimitri Komatitsch, Jeroen Tromp, Qinya Liu   +3 more
core   +2 more sources

The effect of elliptic shape on the period ratio P-1/P-2 of emerging coronal loops [PDF]

, 2009
Aims. We determine the effect of an elliptical shape on the period ratio for the standing transversal oscillations of a longitudinally stratified coronal loop throughout its emergence from the low solar atmosphere into the ubiquitously magnetised corona.
Erdelyi, R., Morton, R.J.
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
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MHD Waves and Coronal Seismology: an overview of recent results

, 2012
Recent observations have revealed that MHD waves and oscillations are ubiquitous in the solar atmosphere, with a wide range of periods. We give a brief review of some aspects of MHD waves and coronal seismology which have recently been the focus of ...
Uchida Y., Wang T., Zajtsev V. V.
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Large amplitude oscillations in prominences [PDF]

, 2009
Since the first reports of oscillations in prominences in the 1930s, there have been major theoretical and observational developments to understand the nature of these oscillatory phenomena, leading to the whole new field of the so-called “prominence ...
Isobe, H., Jain, R., Tripathi, D.
core   +2 more sources

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
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MHD Seismology of a Coronal Loop System by the First Two Modes of Standing Kink Waves

, 2014
We report the observation of the first two harmonics of the horizontally polarized kink waves excited in a coronal loop system lying at south-east of AR 11719 on 2013 April 11.
Chen, P. F., Cheng, X., Ding, M. D., Dwivedi, B. N., Erdélyi, R., Guo, Y., Hao, Q., Srivastava, A. K.   +7 more
core   +1 more source

Wave Heating of the Solar Atmosphere

, 2015
Magnetic waves are a relevant component in the dynamics of the solar atmosphere. Their significance has increased because of their potential as a remote diagnostic tool and their presumed contribution to plasma heating processes.
Arregui, I.
core   +1 more source

Filming seismograms and related materials at the California Institute of Technology [PDF]

, 1982
As part of a world-wide effort to create an international earthquake data bank, Caltech's seismology archive has been organized, labeled, described, and microfilmed.
Goodstein, Judith R.
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