Zobrazeno 1 - 10
of 302
pro vyhledávání: '"Kliem, B."'
Autor:
Kliem, B., Seehafer, N.
Publikováno v:
A&A 659, A49 (2022)
We quantitatively address the conjecture that magnetic helicity must be shed from the Sun by eruptions launching coronal mass ejections in order to limit its accumulation in each hemisphere. By varying the ratio of guide and strapping field and the f
Externí odkaz:
http://arxiv.org/abs/2112.05833
Autor:
Patsourakos, S., Vourlidas, A., Török, T., Kliem, B., Antiochos, S. K., Archontis, V., Aulanier, G., Cheng, X., Chintzoglou, G., Georgoulis, M. K., Green, L. M., Leake, J. E., Moore, R., Nindos, A., Syntelis, P., Yardley, S. L., Yurchyshyn, V., Zhang, J.
A clear understanding of the nature of the pre-eruptive magnetic field configurations of Coronal Mass Ejections (CMEs) is required for understanding and eventually predicting solar eruptions. Only two, but seemingly disparate, magnetic configurations
Externí odkaz:
http://arxiv.org/abs/2010.10186
Autor:
Cheng, X., Zhang, J., Kliem, B., {Török}, T., Xing, C., Zhou, Z. J., Inhester, B., Ding, M. D.
We investigate the initiation and early evolution of 12 solar eruptions, including six active region hot channel and six quiescent filament eruptions, which were well observed by the \textsl{Solar Dynamics Observatory}, as well as by the \textsl{Sola
Externí odkaz:
http://arxiv.org/abs/2004.03790
Coronal mass ejections are often considered to result from the full eruption of a magnetic flux rope (MFR). However, it is recognized that, in some events, the MFR may release only part of its flux, with the details of the implied splitting not compl
Externí odkaz:
http://arxiv.org/abs/1802.04932
There is a recurring question in solar physics about whether or not electric currents are neutralized in active regions (ARs). This question was recently revisited using three-dimensional (3D) magnetohydrodynamic (MHD) numerical simulations of magnet
Externí odkaz:
http://arxiv.org/abs/1507.05060
Publikováno v:
EAS Publications Ser. 55, 299, 2012
This review focuses on the so called three-part CMEs which essentially represent the standard picture of a CME eruption. It is shown how the multi-wavelength observations obtained in the last decade, especially those with high cadence, have validated
Externí odkaz:
http://arxiv.org/abs/1407.2271
Autor:
van Driel-Gesztelyi, L., Baker, D., Torok, T., Pariat, E., Green, L. M., Williams, D. R., Carlyle, J., Valori, G., Demoulin, P., Kliem, B., Long, D. M., Matthews, S. A., Malherbe, J. -M.
Publikováno v:
The Astrophysical Journal, Volume 788, Issue 1, 85, 12 pp. (2014)
Coronal mass ejections (CMEs) erupt and expand in a magnetically structured solar corona. Various indirect observational pieces of evidence have shown that the magnetic field of CMEs reconnects with surrounding magnetic fields, forming, e.g., dimming
Externí odkaz:
http://arxiv.org/abs/1406.3153
In this paper, we address the formation of a magnetic flux rope (MFR) that erupted on 2012 July 12 and caused a strong geomagnetic storm event on July 15. Through analyzing the long-term evolution of the associated active region observed by the Atmos
Externí odkaz:
http://arxiv.org/abs/1405.4923
Publikováno v:
Astrophys. J. 789, 46, 2014
The onset of a solar eruption is formulated here as either a magnetic catastrophe or as an instability. Both start with the same equation of force balance governing the underlying equilibria. Using a toroidal flux rope in an external bipolar or quadr
Externí odkaz:
http://arxiv.org/abs/1404.5922
Publikováno v:
Astrophys. J. 779, 129, 2013
The structure of the coronal magnetic field prior to eruptive processes and the conditions for the onset of eruption are important issues that can be addressed through studying the magnetohydrodynamic stability and evolution of nonlinear force-free f
Externí odkaz:
http://arxiv.org/abs/1304.6981