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We present multi-point in situ observations of a complex sequence of coronal mass ejections (CMEs) which may serve as a benchmark event for numerical and empirical space weather prediction models. On 2010 August 1, instruments on various…

Understanding and predicting the structure and evolution of coronal mass ejections (CMEs) in the heliosphere remains one of the most sought-after goals in heliophysics and space weather research. A powerful tool for improving current…

We reconstruct the morphology and kinematics of a series of small transients that erupt from the Sun on 2021 April 24 using observations primarily from Parker Solar Probe (PSP). These sequential small coronal mass ejections (CMEs) may be…

太阳与恒星天体物理 · 物理学 2023-08-16 Brian E. Wood , Phillip Hess , Yu Chen , Qiang Hu

This study examines the relationship between early solar coronal mass ejection (CME) propagation, the associated filament eruption, and coronal dimming in the rare event observed on March 28, 2022, which featured a three-part CME in the low…

Streamer blowout (SBO) coronal mass ejections (CMEs) represent a particular class of CMEs that are characterized by a gradual swelling of the overlying streamer and a slow CME containing a flux-rope structure. SBO CMEs arising from the…

太阳与恒星天体物理 · 物理学 2020-07-15 Ruisheng Zheng , Yao Chen , Bing Wang

We investigate the initiation and formation of Coronal Mass Ejections (CMEs) via detailed two-viewpoint analysis of low corona observations of a relatively fast CME acquired by the SECCHI instruments aboard the STEREO mission. The event…

太阳与恒星天体物理 · 物理学 2015-06-03 A. Vourlidas , P. Syntelis , K. Tsinganos

On February 12, 2021 two subsequent eruptions occurred above the West limb, as seen along the Sun-Earth line. The first event was a typical slow Coronal Mass Ejection (CME), followed $\sim 7$ hours later by a smaller and collimated…

The study of fast, eruptive events in the low solar corona is one of the science objectives of the Atmospheric Imaging Assembly (AIA) imagers on the recently launched Solar Dynamics Observatory (SDO), which take full disk images in ten…

太阳与恒星天体物理 · 物理学 2015-05-20 S. Patsourakos , A. Vourlidas , G. Stenborg

We report observations of homologous coronal jets and their coronal mass ejections (CMEs) observed by instruments onboard the Solar Dynamics Observatory (SDO) and Solar and Heliospheric Observatory (SOHO) spacecraft. The homologous jets…

太阳与恒星天体物理 · 物理学 2016-05-25 Navdeep K. Panesar , Alphonse C. Sterling , Ronald L. Moore

We present the results of the observations of a coronal mass ejection (CME), which occurred on May 13, 2009. The most important feature of these observations is that the CME was observed from the very early stage (the solar surface) up to a…

太阳与恒星天体物理 · 物理学 2015-09-28 Anton Reva , Artem Ulyanov , Sergey Bogachev , Sergey Kuzin

We present experimental evidence of the coronal mass ejection (CME) breakout reconnection, observed by the TESIS EUV telescope. The telescope could observe solar corona up to 2 $R_\odot$ from the Sun center in the Fe 171 \AA\ line. Starting…

太阳与恒星天体物理 · 物理学 2016-01-19 Anton Reva , Artem Ulyanov , Sergey Shestov , Sergey Kuzin

Coronal and interplanetary shock waves produced by coronal mass ejections (CMEs) are major drivers of space-weather phenomena, inducing major changes in the heliospheric radiation environment and directly perturbing the near-Earth…

太阳与恒星天体物理 · 物理学 2023-04-12 Manon Jarry , Alexis P. Rouillard , Illya Plotnikov , Athanasios Kouloumvakos , Alexander Warmuth

Coronal mass ejections (CMEs) and coronal jets are two types of common solar eruptive phenomena, which often independently happen at different spatial scales. In this work, we present a stereoscopic observation of a large-scale CME flux…

太阳与恒星天体物理 · 物理学 2021-04-21 Hechao Chen , Jiayan Yang , Junchao Hong , Haidong Li , Yadan Duan

We study the coronal mass ejection (CME) with a complex acceleration profile. The event occurred on April 23, 2009. It had an impulsive acceleration phase, an impulsive deceleration phase, and a second impulsive acceleration phase. During…

太阳与恒星天体物理 · 物理学 2017-12-19 A. A Reva , A. S. Kirichenko , A. S. Ulyanov , S. V. Kuzin

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

We present an investigation of an eruption event of coronal mass ejection (CME) magnetic flux rope (MFR) from source active region (AR) NOAA 11719 on 11 April 2013 utilizing observations from SDO, STEREO, SOHO, and WIND spacecraft. The…

太阳与恒星天体物理 · 物理学 2015-10-08 P. Vemareddy , W. Mishra

The eruption of a large quiescent prominence on 17 August 2013 and associated coronal mass ejection (CME) were observed from different vantage points by Solar Dynamics Observatory (SDO), Solar-Terrestrial Relations Observatory (STEREO), and…

太阳与恒星天体物理 · 物理学 2019-11-04 I. V. Kuzmenko , V. V. Grechnev

With the global view and high-cadence observations from SDO/AIA and STEREO, many spatially separated solar eruptive events appear to be coupled. However, the mechanisms for "sympathetic" events are still largely unknown. In this study, we…

太阳与恒星天体物理 · 物理学 2016-03-17 M. Jin , C. J. Schrijver , M. C. M. Cheung , M. L. DeRosa , N. V. Nitta , A. M. Title

We present study of the complex event consisting of several solar wind transients detected by Advanced Composition Explorer (ACE) on 4 -- 7 August 2011, that caused a geomagnetic storm with Dst$=-$110 nT. The supposed coronal sources --…

空间物理 · 物理学 2017-05-12 D. Rodkin , F. Goryaev , P. Pagano , G. Gibb , V. Slemzin , Yu. Shugay , I. Veselovsky , D. H. Mackay

Coronal mass ejections (CMEs) are one of the primary manifestations of solar activity and can drive severe space weather effects. Therefore, it is vital to work towards being able to predict their occurrence. However, many aspects of CME…

太阳与恒星天体物理 · 物理学 2017-05-24 A. W. James , L. M. Green , E. Palmerio , G. Valori , H. A. S. Reid , D. Baker , D. H. Brooks , L. van Driel-Gesztelyi , E. K. J. Kilpua