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On 2018 November 5, about 24 hours before the first close perihelion passage of Parker Solar Probe (PSP), a coronal mass ejection (CME) entered the field of view of the inner detector of the Wide-field Imager for Solar PRobe (WISPR)…

太阳与恒星天体物理 · 物理学 2020-02-12 Brian E. Wood , Phillip Hess , Russell A. Howard , Guillermo Stenborg , Yi-Ming Wang

Coronal mass ejections (CMEs) are large clouds of magnetized plasma ejected from the Sun, and are often associated with acceleration of electrons that can result in radio emission via various mechanisms. However, the underlying mechanism…

太阳与恒星天体物理 · 物理学 2022-05-25 Lei Lu , Li Feng , Weiqun Gan

The availability of high quality synoptic observations of the EUV and visible corona during the SOHO mission has advanced our understanding of the low corona manifestations of CMEs. The EUV imager/white light coronagraph connection has been…

太阳与恒星天体物理 · 物理学 2009-08-11 Eva Robbrecht , Spiros Patsourakos , Angelos Vourlidas

On 2020 April 19 a coronal mass ejection (CME) was detected in situ by Solar Orbiter at a heliocentric distance of about 0.8 AU. The CME was later observed in situ on April 20th by the Wind and BepiColombo spacecraft whilst BepiColombo was…

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…

Using the multi-wavelength images and the photospheric magnetograms from the \emph{Solar Dynamics Observatory}, we study the flare which was associated by the only one coronal mass ejection (CME) in active region (AR) 12192. The eruption of…

太阳与恒星天体物理 · 物理学 2015-11-06 Xiaohong Li , Shuhong Yang , Huadong Chen , Ting Li , Jun Zhang

The solar corona is frequently disrupted by coronal mass ejections (CMEs), whose core structure is believed to be a flux rope made of helical magnetic field. This has become a "standard" picture although it remains elusive how the flux rope…

太阳与恒星天体物理 · 物理学 2018-05-02 Arun Kumar Awasthi , Rui Liu , Haimin Wang , Yuming Wang , Chenglong Shen

This study entails the fourth part of a global flare energetics project, in which the mass $m_{\mathrm{cme}}$, kinetic energy $E_{\mathrm{kin}}$, and the gravitational potential energy $E_{\mathrm{grav}}$ of coronal mass ejections (CMEs) is…

太阳与恒星天体物理 · 物理学 2016-11-09 Markus J. Aschwanden

We report on the closest view of a coronal mass ejection observed by the Parker Solar Probe (PSP)/Wide-field Imager for {Parker} Solar PRobe (WISPR) instrument on September 05, 2022, when PSP was traversing from a distance of…

太阳与恒星天体物理 · 物理学 2023-08-23 Ritesh Patel , Matthew J. West , Daniel B. Seaton , Phillip Hess , Tatiana Niembro , Katharine K. Reeves

In this paper, we report the multiwavelength observations of an erupting prominence and the associated CME on 13 May 2013. The event occurs behind the western limb in the field of view of SDO/AIA. The prominence is supported by a highly…

太阳与恒星天体物理 · 物理学 2023-03-15 Yuhao Zhou , Haisheng Ji , Qingmin Zhang

We study a filament eruption, two-ribbon flare, and coronal mass ejection (CME) that occurred in Active Region NOAA 10898 on 6 July 2006. The filament was located South of a strong sunspot that dominated the region. In the evolution leading…

太阳与恒星天体物理 · 物理学 2014-01-14 Tibor Török , Manuela Temmer , Gherardo Valori , Astrid Veronig , Lidia van Driel-Gesztelyi , Bojan Vršnak

In this Letter, we perform a detailed analysis of the M5.5-class eruptive flare occurring in active region 12929 on 2022 January 20. The eruption of a hot channel generates a fast coronal mass ejection (CME) and a dome-shaped…

太阳与恒星天体物理 · 物理学 2022-10-05 Qingmin Zhang , Chuan Li , Dong Li , Ye Qiu , Yanjie Zhang , Yiwei Ni

We present the application of novel diagnostics to the spectroscopic observation of a Coronal Mass Ejection (CME) on disk by the Extreme Ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft. We apply a recently developed line…

太阳与恒星天体物理 · 物理学 2010-08-31 S. W. McIntosh , B. De Pontieu , R. J. Leamon

The important role played by magnetic reconnection in the early acceleration of coronal mass ejections (CMEs) has been widely discussed. However, as CMEs may have expansion speeds comparable to their propagation speeds in the corona, it is…

太阳与恒星天体物理 · 物理学 2022-07-20 Bin Zhuang , Noé Lugaz , Manuela Temmer , Tingyu Gou , Nada Al-Haddad

A three-dimensional (3D) reconstruction of the 2007, May 20 partial-halo Coronal Mass Ejection (CME) has been made using STEREO/EUVI and STEREO/COR1 coronagraphic images. The trajectory and kinematics of the erupting filament have been…

太阳与恒星天体物理 · 物理学 2015-06-19 Roberto Susino , Alessandro Bemporad , Sergio Dolei

Two major processes have been proposed to convert the coronal magnetic energy into the kinetic energy of a coronal mass ejection (CME): resistive magnetic reconnection and ideal macroscopic magnetohydrodynamic instability of magnetic flux…

太阳与恒星天体物理 · 物理学 2015-06-16 H. Q. Song , Y. Chen , D. D. Ye , G. Q. Han , G. H. Du , G. Li , J. Zhang , Q. Hu

Context. Coronal mass ejections (CMEs) on the Sun are the largest explosions in the Solar System that can drive powerful plasma shocks. The eruptions, shocks, and other processes associated to CMEs are efficient particle accelerators and…

太阳与恒星天体物理 · 物理学 2020-01-29 D. E. Morosan , E. Palmerio , B. J. Lynch , E. K. J. Kilpua

We report on the onset of a coronal mass ejection (CME) using spectroscopic observations in 5303 {\AA} coronal emission line with the Visible Emission Line Coronagraph (VELC) onboard ADITYA-L1, the recently launched first Indian space solar…

太阳与恒星天体物理 · 物理学 2024-11-15 R. Ramesh , V. Muthu Priyal , Jagdev Singh , K. Sasikumar Raja , P. Savarimuthu , Priya Gavshinde

We investigate the source eruption, propagation and expansion characteristics, and heliospheric impacts of the 2020 November 29 coronal mass ejection (CME) and associated shock, using remote sensing and in situ observations from multiple…

太阳与恒星天体物理 · 物理学 2022-10-05 Chong Chen , Ying D. Liu , Bei Zhu

In 2010 May 23-24, SDO observed the launch of two successive coronal mass ejections (CMEs), which were subsequently tracked by the SECCHI suite onboard STEREO. Using the COR2 coronagraphs and the heliospheric imagers (HIs), the initial…

空间物理 · 物理学 2015-06-11 N. Lugaz , C. J. Farrugia , J. A. Davies , C. Möstl , C. J. Davis , I. I. Roussev , M. Temmer