نتایج جستجو برای: solar prominence

تعداد نتایج: 127155  

2009
Takenori J. Okamoto Saku Tsuneta Bruce W. Lites Masahito Kubo Takaaki Yokoyama Thomas E. Berger Kiyoshi Ichimoto Yukio Katsukawa Shin’ichi Nagata Kazunari Shibata Toshifumi Shimizu Richard A. Shine Yoshinori Suematsu Theodore D. Tarbell

The formation and evolution process and magnetic configuration of solar prominences remain unclear. In order to study the formation process of prominences, we examine continuous observations of a prominence in NOAA AR 10953 with the Solar Optical Telescope on the Hinode satellite. As reported in our previous Letter, we find a signature suggesting that a helical flux rope emerges from below the ...

2004
J. F. Hansen S. K. P. Tripathi P. M. Bellan

The interaction between two side-by-side solar prominence-like plasmas has been studied using a four-electrode magnetized plasma source that can impose a wide variety of surface boundary conditions. When the source is arranged to create two prominences with the same helicity ~co-helicity!, it is observed that helicity transfer from one prominence to the other causes the receiving prominence to ...

2007
R. Soler R. Oliver J. L. Ballester

Oscillations of magnetic structures in the solar corona have often been interpreted in terms of magnetohydrodynamic waves. We study the adiabatic magnetoacoustic modes of a prominence plasma slab with a uniform longitudinal magnetic field, surrounded by a prominence-corona transition region (PCTR) and a coronal medium. Considering linear small-amplitude oscillations, the dispersion relation for...

2008
Petr Heinzel

Solar prominences and filaments (prominences projected against the solar disk) exhibit a large variety of fine structures which are well observed down to the resolution limit of ground-based telescopes. We describe the morphological aspects of these fine structures which basically depend on the type of a prominence (quiescent or active-region). Then we review current theoretical scenarios which...

2006
T. R. Metcalf Mitchell Lane L. Fletcher

A “white-light prominence” is a flare visible in the continuum above the solar limb. Few examples of this phenomenon have been reported, but the tremendous event of 2003 November 4 was detected by several instruments. This was a partially occulted flare. We report here a detailed study of a much weaker event, seen in this case from a flare whose chromospheric component was on the disk. We find....

Journal: :Symposium - International Astronomical Union 1990

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