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相关论文: Dynamics of a prominence-horn structure during its…

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Prominences in the solar corona are hundredfold cooler and denser than their surroundings, with a total mass of 1.e13 up to 1.e15 g. Here we report on the first comprehensive simulations of three-dimensional, thermally and gravitationally…

太阳与恒星天体物理 · 物理学 2015-06-22 Chun Xia , Rony Keppens , Patrick Antolin , Oliver Porth

Solar prominences are long-lived cool and dense plasma curtains in the hot and rarefied outer solar atmosphere or corona. The physical mechanism responsible for their formation and especially for their internal plasma circulation has been…

太阳与恒星天体物理 · 物理学 2016-05-25 Chun Xia , Rony Keppens

Starting from a realistically sheared magnetic arcade connecting chromospheric, transition region to coronal plasma, we simulate the in-situ formation and sustained growth of a quiescent prominence in the solar corona. Contrary to previous…

太阳与恒星天体物理 · 物理学 2015-06-04 Chun Xia , P. F. Chen , Rony Keppens

We present magnetohydrodynamic simulation of the evolution from quasi-equilibrium to onset of eruption of a twisted, prominence-forming coronal magnetic flux rope underlying a corona streamer. The flux rope is built up by an imposed flux…

太阳与恒星天体物理 · 物理学 2019-05-21 Yuhong Fan , Tie Liu

Prominences, or filaments, are a striking phenomenon in the solar atmosphere. Besides their own rich features and dynamics, they are related to many other activities, such as solar flares and coronal mass ejections (CMEs). In the past…

太阳与恒星天体物理 · 物理学 2014-07-08 P. F. Chen

Solar prominences are very spectacular structures embedded in the tenuous and hot solar corona. The counterstreaming flows, a common feature in solar quiescent prominences, have been discovered for more than twenty years. However, the…

太阳与恒星天体物理 · 物理学 2025-02-07 X. L. Yan , Z. K. Xue , J. C. Wang , P. F. Chen , K. F. Ji , C. Xia , L. H. Yang , D. F. Kong , Z. Xu , Y. A. Zhou , Q. L. Li

One of the most striking structures in the solar atmosphere are prominences, predominantly coronal structures, with thermodynamic conditions that vary from chromospheric internally to the corona that surrounds them. These structures play an…

太阳与恒星天体物理 · 物理学 2025-05-14 V. Jerčić , B. Popescu Braileanu , R. Keppens

The structure of a star's coronal magnetic field is a fundamental property that governs the high-energy emission from the hot coronal gas and the loss of mass and angular momentum in the stellar wind. It is, however, extremely difficult to…

太阳与恒星天体物理 · 物理学 2020-01-08 M. Jardine , A. Collier Cameron , J. -F. Donati , G. A. J. Hussain

Quiescent prominences are thin slabs of cold, dense plasma embedded in the much hotter and rarer solar corona. Although their global shape is rather irregular, they are often characterised by an internal structure consisting of a large…

太阳与恒星天体物理 · 物理学 2010-02-23 R. Oliver

Context. One of the typical features shown by observations of solar prominence oscillations is that they are damped in time and that the values of the damping times are usually between one and three times the corresponding oscillatory…

天体物理学 · 物理学 2009-11-13 R. Soler , R. Oliver , J. L. Ballester

Filament longitudinal oscillations have been observed on the solar disk in H$\alpha$. We intend to find an example of the longitudinal oscillations of a prominence, where the magnetic dip can be seen directly, and examine what is the…

太阳与恒星天体物理 · 物理学 2015-06-04 Qingmin Zhang , Pengfei Chen , Chun Xia , Rony Keppens

We present an observational study of the formation and disappearance of a funnel prominence. Before the funnel prominence formed, cool materials from the top of a preexisting polar crown prominence flowed along saddle-shaped coronal loops…

太阳与恒星天体物理 · 物理学 2024-06-27 Bo Yang , Jiayan Yang , Yi Bi , Junchao Hong

A prevalent but untested paradigm is often used to describe the prominence-cavity system: the cavity is under-dense because it is evacuated by supplying mass to the condensed prominence. The thermal non-equilibrium (TNE) model of prominence…

太阳与恒星天体物理 · 物理学 2015-06-17 Donald Schmit , Sarah Gibson , Manuel Luna , Judy Karpen , Davina Innes

We present numerical simulations in 2.5D settings where large scale prominences form in situ out of coronal condensation in magnetic dips, in close agreement with early as well as recent reporting of `funnel prominences'. Our simulation…

太阳与恒星天体物理 · 物理学 2015-06-19 Rony Keppens , Chun Xia

Solar prominences are magnetic structures incarcerating cool and dense gas in an otherwise hot solar corona. Prominences can be categorized as quiescent and active. Their origin and the presence of cool gas (~$10^4$K) within the hot…

太阳与恒星天体物理 · 物理学 2023-04-03 Swati Routh , Snehanshu Saha , Atul Bhat , M. N. Sundar

The knots in solar prominences are often observed to fall with nearly constant velocity, but the associated physical mechanism is currently not well understood. In this letter, we presented a prominence observed by New Vacuum Solar…

太阳与恒星天体物理 · 物理学 2020-03-19 Yi Bi , Bo Yang , Tng Li , Yan Dong , Kaifan Ji

Solar prominences are cool and dense plasma structures floating in the hot solar corona. They are ubiquitous features in the solar atmosphere, but their formation mechanism is still unclear. Here we perform comprehensive fully…

太阳与恒星天体物理 · 物理学 2026-05-04 Lisa-Marie Zessner , Robert H. Cameron , Sami K. Solanki , Damien Przybylski

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,…

天体物理学 · 物理学 2009-11-13 R. Soler , R. Oliver , J. L. Ballester

The mass cycle of solar prominences or filaments is still not completely understood. Researchers agree that these dense structures form by coronal in-situ condensations and plasma siphoning from the underlying chromosphere. In the…

太阳与恒星天体物理 · 物理学 2024-05-31 Dion Donné , Rony Keppens

Solar filaments/prominences are common features in the Sun's atmosphere that contain cool chromospheric material suspended within the hot corona. However, the intricate topology of these structures and the mechanisms driving their…

太阳与恒星天体物理 · 物理学 2024-08-20 X. F. Zhang , G. P. Zhou , C. L. Jin , Y. Z. Zhang , G. W. Li , Z. H. Shang , L. P. Li , S. B. Yang , S. H. Yang , J. X. Wang
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