Results 11 to 20 of about 3,198,119 (194)

A solar storm observed from the Sun to Venus using the STEREO, Venus Express, and MESSENGER spacecraft [PDF]

, 2009
The suite of SECCHI optical imaging instruments on the STEREO-A spacecraft is used to track a solar storm, consisting of several coronal mass ejections (CMEs) and other coronal loops, as it propagates from the Sun into the heliosphere during May 2007 ...
Anderson, B., Tsang, S., Harrison, R. A., Lockwood, M., Savani, N. P., Eyles, C. J., Jones, G. H., Frahm, R. A., Forsyth, R. J., Thernisien, A., Howard, R. A., Whittaker, I., Carr, C. M., Rouillard, A. P., Fraenz, M., Brown, D. S., Hapgood, M., Coates, A. J., Zhang, T. -L., Crothers, S. R., Grande, M., Davies, J. A., Sheeley, N. R., Bewsher, D., Winningham, J. D., Davis, C. J.   +25 more
core   +6 more sources

Simultaneous interplanetary scintillation and Heliospheric Imager observations of a coronal mass ejection [PDF]

, 2008
We describe simultaneous Interplanetary Scintillation (IPS) and STEREO Heliospheric Imager (HI) observations of a coronal mass ejection (CME) on 16 May 2007. Strong CME signatures were present throughout the IPS observation.
Davies, Jackie, Breen, Andy, Rouillard, Alexis, Fallows, Richard, Brown, Daniel, Dorrian, Gareth   +5 more
core   +6 more sources

First imaging of corotating interaction regions using the STEREO spacecraft [PDF]

, 2008
Plasma parcels are observed propagating from the Sun out to the large coronal heights monitored by the Heliospheric Imagers (HI) instruments onboard the NASA STEREO spacecraft during September 2007. The source region of these out-flowing parcels is found
Eyles, C. J., Davies, J. A., Rouillard, A. P., Bewsher, D., Forsyth, R. J., Harrison, R. A., Rees, A., Hapgood, M., Lockwood, M., Crothers, S. R., Perry, C. H., Davis, C. J.   +11 more
core   +6 more sources

What Do Halo CMEs Tell Us about Solar Cycle 25?

The Astrophysical Journal Letters, 2023
It is known that the weak state of the heliosphere due to diminished solar activity in cycle 24 backreacted on coronal mass ejections (CMEs) to make them appear wider for a given speed. One of the consequences of the weak state of the heliosphere is that
Nat Gopalswamy, Grzegorz Michalek, Seiji Yashiro, Pertti Mäkelä, Sachiko Akiyama, Hong Xie   +5 more
doaj   +1 more source

Particle precipitation during ICME-driven and CIR-driven geomagnetic storms [PDF]

, 2008
Interplanetary coronal mass ejections (ICME) and corotating interaction regions (CIR) alter the parameters of the solar wind and interplanetary magnetic field (IMF) that affect conditions in the Earth's magnetosphere and particle precipitation in the ...
Honary, Farideh, Denton, Michael H., Longden, N.   +2 more
core   +5 more sources

Improving the Arrival Time Estimates of Coronal Mass Ejections by Using Magnetohydrodynamic Ensemble Modeling, Heliospheric Imager Data, and Machine Learning

The Astrophysical Journal, 2023
The arrival time prediction of coronal mass ejections (CMEs) is an area of active research. Many methods with varying levels of complexity have been developed to predict CME arrival.
Talwinder Singh, Bernard Benson, Syed A. Z. Raza, Tae K. Kim, Nikolai V. Pogorelov, William P. Smith, Charles N. Arge   +6 more
doaj   +1 more source

Lateral Confinement and the Remarkably Self-similar Nature of Coronal Pseudostreamer Mass Ejections

The Astrophysical Journal, 2023
Coronal mass ejections (CMEs) that originate from pseudostreamers, which separate coronal holes of the same magnetic polarity, are characterized by a narrow (∼5°–30°), fan-shaped appearance in white-light coronagraph images.
Y.-M. Wang, P. Hess
doaj   +1 more source

Development and application of a global magnetic field evolution model for the solar corona [PDF]

, 2009
Magnetic fields are fundamental to the structure and dynamics of the Sun’s corona. Observations show them to be locally complex, with highly sheared and twisted fields visible in solar filaments/prominences.
Yeates, Anthony Robinson
core   +2 more sources

Some kinematics of halo coronal mass ejections

Open Astronomy, 2020
We present an investigation of halo coronal mass ejections (HCMEs) kinematics and other facts about the HCMEs. The study of HCMEs is very important because HCMEs are regarded as the main causes of heliospheric and geomagnetic disturbances. In this study,
Verma Virendra Kumar, Mittal Nishant, Chandra Ramesh   +2 more
doaj   +1 more source

Anomalous-plasmoid-ejection-induced secondary magnetic reconnection: modeling solar flares and coronal mass ejections by laser–plasma experiments

High Power Laser Science and Engineering, 2013
The driving mechanism of solar flares and coronal mass ejections is a topic of ongoing debate, apart from the consensus that magnetic reconnection plays a key role during the impulsive process.
Quanli Dong, Dawei Yuan, Shoujun Wang, Xun Liu, Yutong Li, Xiaoxuan Lin, Huigang Wei, Jiayong Zhong, Shaoen Jiang, Yongkun Ding, Bobin Jiang, Kai Du, Yongjian Tang, Mingyang Yu, Xiantu He, Neng Hua, Zhanfeng Qiao, Kuixi Huang, Ming Chen, Jianqiang Zhu, Gang Zhao, Zhengming Sheng, Jie Zhang   +22 more
doaj   +1 more source