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Stealth coronal mass ejections (CMEs) are events in which there are almost no observable signatures of the CME eruption in the low corona but often a well-resolved slow flux rope CME observed in the coronagraph data. We present results from…

太阳与恒星天体物理 · 物理学 2016-12-28 B. J. Lynch , S. Masson , Y. Li , C. R. DeVore , J. G. Luhmann , S. K. Antiochos , G. H. Fisher

This paper presents a detailed study of the type II solar radio burst that occurred on 06 March 2014 using combined data analysis. It is a classical radio event consisting of type III radio burst and a following type II radio burst in the…

太阳与恒星天体物理 · 物理学 2024-04-02 V. Vasanth

Flares, sometimes accompanied by coronal mass ejections (CMEs), are the result of sudden changes in the magnetic field of stars with high energy release through magnetic reconnection, which can be observed across a wide range of the…

We investigate the high-speed ($v >$ 1000 km s$^{-1}$) extreme-ultraviolet (EUV) wave associated with an X1.2 flare and coronal mass ejection (CME) from NOAA active region 11283 on 2011 September 6 (SOL2011-09-06T22:12). This EUV wave…

太阳与恒星天体物理 · 物理学 2016-10-26 Karin Dissauer , Manuela Temmer , Astrid M. Veronig , Kamalam Vanninathan , Jasmina Magdalenić

On 13 June 2010, an eruptive event occurred near the solar limb. It included a small filament eruption and the onset of a relatively narrow coronal mass ejection (CME) surrounded by an extreme ultraviolet wave front recorded by the Solar…

Coronal Mass Ejections (CMEs) are the most energetic expulsions of magnetized plasma from the Sun that play a crucial role in space weather dynamics. This study investigates the diverse kinematics and thermodynamic evolution of two CMEs…

太阳与恒星天体物理 · 物理学 2023-10-11 Soumyaranjan Khuntia , Wageesh Mishra , Sudheer K Mishra , Yuming Wang , Jie Zhang , Shaoyu Lyu

Coronal mass ejections (CMEs) are eruptive events that cause a solar-type star to shed mass and magnetic flux. CMEs tend to occur together with flares, radio storms, and bursts of energetic particles. On the Sun, CME-related mass loss is…

太阳与恒星天体物理 · 物理学 2017-05-24 Steven R. Cranmer

We studied the kinematic evolution of the 8 October 2007 CME in the corona based on Sun-Earth Connection Coronal and Heliospheric Investigation (SECCHI) onboard satellite B of Solar TErrestrial RElations Observatory (STEREO). The…

太阳与恒星天体物理 · 物理学 2011-03-17 Chenglong Shen , Yuming Wang , Bin Gui , Pinzhong Ye , S. Wang

The spatial inhomogeneity of the distribution of coronal mass ejection (CME) occurrences in the solar atmosphere could provide a tool to estimate the longitudinal position of the most probable CME-capable active regions in the Sun. The…

太阳与恒星天体物理 · 物理学 2017-03-30 N. Gyenge , T. Singh , T. S. Kiss , A. K. Srivastava , R. Erdélyi

We report the first results of a magnetohydrodynamic (MHD) simulation of the development of a homologous sequence of three coronal mass ejections (CMEs) and demonstrate their so-called cannibalistic behavior. These CMEs originate from the…

太阳与恒星天体物理 · 物理学 2014-10-08 Piyali Chatterjee , Yuhong Fan

We analyze a confined multiple-ribbon M2.1 flare (SOL2015-01-29T11:42) that originated from a fan-spine coronal magnetic field configuration, within active region NOAA 12268. The observed ribbons form in two steps. First, two primary…

太阳与恒星天体物理 · 物理学 2017-10-11 Aaron Hernandez-Perez , Julia K. Thalmann , Astrid M. Veronig , Yang Su , Peter Gömöry , Ewan C. Dickson

Coronal mass ejection (CME) often produces a soft X-ray (SXR) flare associated with the low-coronal reconnection and a type-II radio burst associated with an interplanetary (IP) CME-shock. SXR flares and type-II bursts outshine the…

太阳与恒星天体物理 · 物理学 2024-10-02 Atul Mohan , Nat Gopalswamy , Hemapriya Raju , Sachiko Akiyama

A solar jet can often cause coronal mass ejections (CMEs) with different morphologies in the high corona, for example, jet-like CMEs, bubble-like CMEs, and so-called twin CMEs that include a pair of simultaneous jet-like and bubble-like…

太阳与恒星天体物理 · 物理学 2024-05-01 Yadan Duan , Yuandeng Shen , Zehao Tang , Chenrui Zhou , Song Tan

Although all coronal mass ejections (CMEs) that propagate into the heliosphere should contain a magnetic flux rope (MFR) component, the majority do not exhibit the expected white-light MFR morphology of a leading edge plus cavity. This…

太阳与恒星天体物理 · 物理学 2025-06-11 Cecilia Mac Cormack , Abril Sahade , Angelos Vourlidas , Phillip Hess , Robin Colaninno , Teresa Nieves-Chinchilla

Utilizing multiwavelength observations and magnetic field data from SDO/AIA, SDO/HMI, GOES and RHESSI, we investigate a large-scale ejective solar eruption of 2014 December 18 from active region NOAA 12241. This event produced a distinctive…

太阳与恒星天体物理 · 物理学 2017-08-23 Navin Chandra Joshi , Alphonse C. Sterling , Ronald L. Moore , Tetsuya Magara , Young-Jae Moon

On 17 January 2005 two fast coronal mass ejections were recorded in close succession during two distinct episodes of a 3B/X3.8 flare. Both were accompanied by metre-to-kilometre type-III groups tracing energetic electrons that escape into…

太阳与恒星天体物理 · 物理学 2015-03-18 A. Hillaris , O. Malandraki , K. -L Klein , P. Preka-Papadema , X. Moussas , C. Bouratzis , E. Mitsakou , P. Tsitsipis , A. Kontogeorgos

Current coronal mass ejection (CME) models set their lower boundary to be in the lower corona. They do not calculate accurately the transfer of free magnetic energy from the convection zone to the magnetically dominated corona because they…

太阳与恒星天体物理 · 物理学 2015-05-19 James E. Leake , Mark G. Linton , Spiro K. Antiochos

We present SDO/AIA observation of three types of fast-mode propagating magnetosonic waves in a GOES C3.0 flare on 2013 April 23, which was accompanied by a prominence eruption and a broad coronal mass ejection (CME). During the fast rising…

太阳与恒星天体物理 · 物理学 2021-11-24 Xinping Zhou , Yuandeng Shen , Jiangtao Su , Zehao Tang , Chengrui Zhou , Yadan Duan , Song Tan

Solar filaments can undergo eruptions and result in the formation of coronal mass ejections (CMEs), which could significantly impact planetary space environments. Observations of eruptions involving polar crown filaments, situated in the…

太阳与恒星天体物理 · 物理学 2024-08-29 Zheng Sun , Hui Tian , Ting Li , Rui Liu , Yadan Duan

The triggering process for coronal mass ejections (CME) in the solar atmosphere is not fully understood. We use observations from different spacecraft at several wavelengths to detect an instability process for a prominence/filament with a…

太阳与恒星天体物理 · 物理学 2021-10-05 Z. M. Vashalomidze , T. V. Zaqarashvili , V. D. Kukhianidze , G. T. Ramishvili
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