English
Related papers

Related papers: Kinematical properties of coronal mass ejections

200 papers

The explosion of space weather research since the early 1990s has been partly fueled by the unprecedented, uniform, and extended observations of solar disturbances from space and ground based instruments. Coronal mass ejections (CMEs) from…

Solar and Stellar Astrophysics · Physics 2022-11-15 Nat Gopalswamy

Coronal Mass Ejections (CMEs) correspond to dramatic expulsions of plasma and magnetic field from the solar corona into the heliosphere. CMEs are scientifically relevant because they are involved in the physical mechanisms characterizing…

Coronal Mass Ejections (CMEs) influence the interplanetary environment over vast distances in the solar system by injecting huge clouds of fast solar plasma and energetic particles (SEPs). A number of fundamental questions remain about how…

Solar and Stellar Astrophysics · Physics 2022-06-01 Oleg Stepanyuk , Kamen Kozarev , Mohamed Nedal

The relative importance of different initiation mechanisms for coronal mass ejections (CMEs) on the Sun is uncertain. One possible mechanism is the loss of equilibrium of coronal magnetic flux ropes formed gradually by large-scale surface…

Solar and Stellar Astrophysics · Physics 2014-11-20 A. R. Yeates , G. D. R. Attrill , Dibyendu Nandy , D. H. Mackay , P. C. H. Martens , A. A. van Ballegooijen

Coronal mass ejections (CMEs) are the primary drivers of severe space weather disturbances in the heliosphere. Models of CME dynamics have been proposed that do not fully include the effects of magnetic reconnection on the forces driving…

Solar and Stellar Astrophysics · Physics 2018-07-20 Brian T. Welsch

We carry out a numerical simulation depicting the effects of a Coronal Mass Ejection (CME) event on a close-in giant planet in an extrasolar system. We drive the CME in a similar manner as in simulations of space weather events on Earth.…

Solar and Stellar Astrophysics · Physics 2015-05-27 O. Cohen , V. L. Kashyap , J. J. Drake , I. V. Sokolov , T. I. Gombosi

We study dynamics of relativistic Coronal Mass Ejections (CMEs), from launching by shearing of foot-points (either slowly - the ``Solar flare'' paradigm, or suddenly - the ``star quake" paradigm), to propagation in the preceding magnetar…

High Energy Astrophysical Phenomena · Physics 2023-08-14 Praveen Sharma , Maxim Barkov , Maxim Lyutikov

Coronal mass ejections (CMEs) were discovered in the early 1970s when space-borne coronagraphs revealed that eruptions of plasma are ejected from the Sun. Today, it is known that the Sun produces eruptive flares, filament eruptions, coronal…

Solar and Stellar Astrophysics · Physics 2018-03-14 Lucie Green , Tibor Torok , Bojan Vrsnak , Ward Manchester , Astrid Veronig

The physical processes, which drive powerful solar eruptions, play an important role in our understanding of the Sun-Earth connection. In this Special Issue, we firstly discuss how magnetic fields emerge from the solar interior to the solar…

Solar and Stellar Astrophysics · Physics 2019-06-12 Vasilis Archontis , Loukas Vlahos

Coronal Mass Ejections (CMEs) erupting from the host star are expected to have effects on the atmospheric erosion processes of the orbiting planets. For planets with a magnetosphere, the embedded magnetic field in the CMEs is thought to be…

Solar and Stellar Astrophysics · Physics 2024-11-12 Gopal Hazra , Aline A. Vidotto , Stephen Carolan , Carolina Villarreal D'Angelo , Dúalta Ó Fionnagáin

Predicting transit times of Coronal Mass Ejections (CMEs) from their initial parameters is a very important subject, not only from the scientific perspective, but also because CMEs represent a hazard for human technology. We used a neural…

Solar and Stellar Astrophysics · Physics 2016-08-06 D. Sudar , B. Vršnak , M. Dumbović

Coronal mass ejections (CMEs) originate from closed magnetic field regions on the Sun, which are active regions and quiescent filament regions. The energetic populations such as halo CMEs, CMEs associated with magnetic clouds, geoeffective…

Solar and Stellar Astrophysics · Physics 2015-05-13 N. Gopalswamy , S. Akiyama , S. Yashiro , P. Makela

Coronal mass ejections (CMEs) and solar flares are the large-scale and most energetic eruptive phenomena in our solar system and able to release a large quantity of plasma and magnetic flux from the solar atmosphere into the solar wind.…

Solar and Stellar Astrophysics · Physics 2017-07-13 X. Cheng , Y. Guo , M. D. Ding

Coronal mass ejections (CMEs) are solar eruptions of plasma and magnetic fields that significantly impact Space Weather, causing disruptions in technological systems and potential damage to power grids when directed towards Earth.…

Solar and Stellar Astrophysics · Physics 2024-10-07 Shantanu Jain , Tatiana Podladchikova , Galina Chikunova , Karin Dissauer , Astrid M. Veronig

Among various factors affecting the space weather effects of a coronal mass ejection (CME), its propagation trajectory in the interplanetary space is an important one determining whether and when the CME will hit the Earth. Many direct…

Space Physics · Physics 2014-12-24 Yuming Wang , Boyi Wang , Chenglong Shen , Fang Shen , Noe Lugaz

The geo-effectiveness of Coronal Mass Ejections (CMEs) is a critical area of study in space weather, particularly in the lesser-explored domain of CME-CME interactions and their geomagnetic consequences. This study leverages the SWASTi…

Solar and Stellar Astrophysics · Physics 2024-10-01 Prateek Mayank , Stefan Lotz , Bhargav Vaidya , Wageesh Mishra , D. Chakrabarty

Solar eruptions generally refer to coronal mass ejections (CMEs) and flares. Both are important sources of space weather. Solar flares cause sudden change in the ionization level in the ionosphere. CMEs cause solar energetic particle (SEP)…

Solar and Stellar Astrophysics · Physics 2017-09-12 Nat Gopalswamy

The largest geomagnetic storms of solar cycle 24 so far occurred on 2015 March 17 and June 22 with $D_{\rm st}$ minima of $-223$ and $-195$ nT, respectively. Both of the geomagnetic storms show a multi-step development. We examine the…

The effects of a large coronal mass ejection (CME) on a solar coronal streamer located roughly 90 degrees from the main direction of the CME propagation observed on January 2, 2012 by the SOHO/LASCO coronagraph are analyzed. Radial coronal…

Solar and Stellar Astrophysics · Physics 2015-06-22 B. Filippov , P. Kayshap , A. K. Srivastava , O. Martsenyuk

Stellar coronal mass ejections (CMEs) may play an important role in mass- and angular momentum loss of young Sun-like stars. If occurring frequently, they may also have a strong effect on planetary evolution by increasing atmospheric…

Solar and Stellar Astrophysics · Physics 2017-09-21 P. Odert , M. Leitzinger , A. Hanslmeier , H. Lammer
‹ Prev 1 4 5 6 7 8 10 Next ›