Zobrazeno 1 - 10
of 69
pro vyhledávání: '"van Ballegooijen, Adriaan"'
We investigate the formation and magnetic topology of four flare/CME events with filament-sigmoid systems, in which the sigmoidal hot channels are located above the filaments, and they appear in pairs prior to eruption.} The formation of hot channels
Externí odkaz:
http://arxiv.org/abs/1810.03795
Autor:
Li, Shangwei, Su, Yingna, Zhou, Tuanhui, van Ballegooijen, Adriaan, Sun, Xudong, Ji, Haisheng
Publikováno v:
The Astrophysical Journal, Volume 844, Issue 1, article id. 70, 13 pp. (2017)
We investigate two sympathetic filament eruptions observed by the New Vacuum Solar Telescope (NVST) on 2015 October 15. The full picture of the eruptions is obtained from the corresponding SDO/AIA observations. The two filaments start from active reg
Externí odkaz:
http://arxiv.org/abs/1803.06088
In this paper we further develop a model for the heating of coronal loops by Alfven wave turbulence (AWT). The Alfven waves are assumed to be launched from a collection of kilogauss flux tubes in the photosphere at the two ends of the loop. Using a t
Externí odkaz:
http://arxiv.org/abs/1710.05074
Alfv\'{e}n waves are believed to play an important role in the heating and acceleration of the fast solar wind emanating from coronal holes. Nonlinear interactions between the dominant ${\bf z}_{+}$ waves and minority ${\bf z}_{-}$ waves have the pot
Externí odkaz:
http://arxiv.org/abs/1612.02501
Autor:
Su, Yingna, van Ballegooijen, Adriaan, McCauley, Patrick I., Ji, Haisheng, Reeves, Katharine K., DeLuca, Edward E.
We present an investigation of the polar crown prominence that erupted on 2012 March 12. This prominence is observed at the southeast limb by SDO/AIA (end-on view) and displays a quasi vertical-thread structure. Bright U-shape/horn-like structure is
Externí odkaz:
http://arxiv.org/abs/1505.06826
Publikováno v:
2013 ApJ, 766, 126
The dense prominence material is believed to be supported against gravity through the magnetic tension of dipped coronal magnetic field. For quiescent prominences, which exhibit many gravity-driven flows, hydrodynamic forces are likely to play an imp
Externí odkaz:
http://arxiv.org/abs/1303.4130
The solar wind is connected to the Sun's atmosphere by flux tubes that are rooted in an ever-changing pattern of positive and negative magnetic polarities on the surface. Observations indicate that the magnetic field is filamentary and intermittent a
Externí odkaz:
http://arxiv.org/abs/1303.0563
Autor:
Su, Yingna, van Ballegooijen, Adriaan
A large polar-crown prominence composed of different segments spanning nearly the entire solar disk erupted on 2010 December 6. Prior to the eruption, the filament in the active region part splits into two layers: a lower layer and an elevated layer.
Externí odkaz:
http://arxiv.org/abs/1211.6967
We present a study on the structure of quiescent filament channels observed by Hinode/XRT and STEREO/EUVI from December 2006 to February 2009. For 10 channels identified on the solar disk, we find that the emission on the two sides of the channel is
Externí odkaz:
http://arxiv.org/abs/1208.1529
Autor:
Su, Yingna, van Ballegooijen, Adriaan
Publikováno v:
The Astrophysical Journal, Volume 757, Issue 2, article id. 168, 17 pp. (2012)
We present observations and magnetic field modeling of the large polar crown prominence that erupted on 2010 December 6. Combination of SDO/AIA and STEREO$\_$Behind/EUVI allows us to see the fine structures of this prominence both at the limb and on
Externí odkaz:
http://arxiv.org/abs/1208.1524