中文
相关论文

相关论文: A Review of Coronagraphic Observations of Shocks D…

200 篇论文

Coronal mass ejections (CMEs) are large eruptions of plasma and magnetic field from the low solar corona into interplanetary space. These eruptions are often associated with the acceleration of energetic electrons which produce various…

太阳与恒星天体物理 · 物理学 2017-12-20 Eoin P. Carley , Nicole Vilmer , Paulo J. A. Simões , Brían Ó Fearraigh

One of the sources of solar energetic particle (SEP) events is shocks that are driven by fast coronal mass ejections (CMEs). They can accelerate SEPs up to relativistic energies and are attributed to the largest SEP events. New studies…

太阳与恒星天体物理 · 物理学 2023-06-21 N. Talebpour Sheshvan , N. Dresing , R. Vainio , A. Afanasiev , D. E. Morosan

The interaction of multiple Coronal Mass Ejections (CMEs) has been observed by LASCO coronagraphs and by near-Earth spacecraft, and it is thought to be an important cause of geo-effective storms, large Solar Energetic Particles events and…

空间物理 · 物理学 2008-08-29 N. Lugaz , W. B. Manchester , I. I. Roussev , T. I. Gombosi

Solar energetic particles acceleration by a shock wave accompanying a coronal mass ejection (CME) is studied. The description of the accelerated particle spectrum evolution is based on the numerical calculation of the diffusive transport…

高能天体物理现象 · 物理学 2017-02-09 A. S. Petukhova , I. S. Petukhov , S. I. Petukhov , L. T. Ksenofontov

Understanding how shocks interact with coronal structures is crucial for understanding the mechanisms of particle acceleration in the solar corona and inner heliosphere. Using simultaneous radio and white-light observations, we investigate…

太阳与恒星天体物理 · 物理学 2025-09-10 Pankaj Kumar , Judith T. Karpen , P. K. Manoharan , N. Gopalswamy

We have performed, for the first time, the successful automated detection of Coronal Mass Ejections (CMEs) in data from the inner heliospheric imager (HI-1) cameras on the STEREO A spacecraft. Detection of CMEs is done in time-height maps…

太阳与恒星天体物理 · 物理学 2016-12-14 V. Pant , S. Willems , L. Rodriguez , M. Mierla , D. Banerjee , J. A. Davies

From data by LASCO C2 and C3 coronagraphs, depending on time (distance), we have determined positions and velocities of the front for fast limb CMEs' body with their sources near the limb, and for the body of halo-type CME with the sources…

太阳与恒星天体物理 · 物理学 2018-10-31 V. G. Fainshtein , Ya. I. Egorov , Yu. S. Zagainova

Coronal mass ejections (CMEs) are large-scale expulsions of plasma and magnetic fields from the Sun into the heliosphere and are the most important driver of space weather. The geo-effectiveness of a CME is primarily determined by its…

太阳与恒星天体物理 · 物理学 2023-10-26 Devojyoti Kansabanik

The twin Sun Earth Connection Coronal and Heliospheric Investigation (SECCHI) COR2 coronagraphs of the Solar Terrestrial Relations Observatory (STEREO) provide images of the solar corona from two view points in the solar system. Since their…

太阳与恒星天体物理 · 物理学 2011-02-11 Robin C. Colaninno , Angelos Vourlidas

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

Solar coronal dimmings have been observed extensively in the past two decades and are believed to have close association with coronal mass ejections (CMEs). Recent study found that coronal dimming is the only signature that could…

In this work we performed a polarimetric study of a fast and wide coronal mass ejection (CME) observed on 12 July 2012 by the COR1 and COR2 instruments onboard Solar TErrestrial RElations Observatory (STEREO) mission. The CME source region…

太阳与恒星天体物理 · 物理学 2022-07-20 Marilena Mierla , Bernd Inhester , Andrei N. Zhukov , Sergei V. Shestov , Alessandro Bemporad , Philippe Lamy , Serge Koutchmy

Due to projection effects, coronagraphic observations cannot uniquely determine parameters relevant to the geoeffectiveness of CMEs, such as the true propagation speed, width, or source location. The Cone Model for Coronal Mass Ejections…

天体物理学 · 物理学 2008-11-26 G. Michalek

Studying coronal mass ejections (CMEs) in coronagraph data can be challenging due to their diffuse structure and transient nature, compounded by the variations in their dynamics, morphology, and frequency of occurrence. The large amounts of…

太阳与恒星天体物理 · 物理学 2015-06-15 Jason P. Byrne

In a case study (June 6-7, 2008) we report on how the internal structure of a coronal mass ejection (CME) at 1 AU can be anticipated from remote observations of white-light images of the heliosphere. Favorable circumstances are the absence…

The expanding magnetic flux in coronal mass ejections (CMEs) often forms a cavity. A spherical model is simultaneously fit to STEREO EUVI and COR1 data of an impulsively accelerated CME on 25 March 2008, which displays a well-defined…

太阳与恒星天体物理 · 物理学 2015-05-19 S. Patsourakos , A. Vourlidas , B. Kliem

Solar flares and coronal mass ejections (CMEs) are manifestations of energy release in the solar atmosphere, which can be accompanied by dynamic mass motions and waves in the surrounding atmosphere. Here, we present observations of plasma…

太阳与恒星天体物理 · 物理学 2025-03-26 Mohamed Nedal , David M. Long , Catherine Cuddy , Lidia Van Driel-Gesztelyi , Peter T. Gallagher

Context. Some of of the most prominent sources for energetic particles in our Solar System are huge eruptions of magnetised plasma from the Sun called coronal mass ejections (CMEs), which usually drive shocks that accelerate charged…

太阳与恒星天体物理 · 物理学 2022-11-14 D. E. Morosan , J. Pomoell , A. Kumari , R. Vainio , E. K. J. Kilpua

A method for the full three-dimensional (3-D) reconstruction of the trajectories of coronal mass ejections (CMEs) using Solar TErrestrial RElations Observatory (STEREO) data is presented. Four CMEs that were simultaneously observed by the…

太阳与恒星天体物理 · 物理学 2009-05-14 Shane A. Maloney , Peter T. Gallagher , R. T. James McAteer

This paper reports the observations of two coronal shocks from two Coronal Mass Ejections (CMEs) for the Successive type II Solar radio bursts observed on 02 May 2021 in the frequency range of 80 - 1 MHz with the time interval of ~ 20…

太阳与恒星天体物理 · 物理学 2025-08-27 V. Vasanth