Results 31 to 40 of about 54,745 (274)

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

Forecasting the Arrival Time of Coronal Mass Ejections: Analysis of the CCMC CME Scoreboard [PDF]

Space Weather, 2018
Accurate forecasting of the properties of coronal mass ejections (CMEs) as they approach Earth is now recognized as an important strategic objective for both NOAA and NASA.
P. Riley, L. Mays, J. Andries, T. Amerstorfer, D. Biesecker, V. Delouille, M. Dumbović, Xueshang Feng, E. Henley, J. Linker, C. Mostl, Marlon Núñez, V. Pizzo, M. Temmer, W. Tobiska, C. Verbeke, M. West, Xinhua Zhao   +17 more
semanticscholar   +1 more source

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

Review of Fast Solar Jets and Coronal Mass Ejections [PDF]

Iranian Journal of Astronomy and Astrophysics, 2023
The Sun is a magnetically active star. It has a powerful magnetic field that shifts slightly from year to year until it reverses about every eleven years. The sun's magnetic field has many effects, the collection of which is called solar activity such as,
Sima Zeighami, Ehsan Tavabi
doaj   +1 more source

Suppression of Coronal Mass Ejections in Active Stars by an Overlying Large-scale Magnetic Field: A Numerical Study [PDF]

Astrophysical Journal, 2018
We present results from a set of numerical simulations aimed at exploring the mechanism of coronal mass ejection (CME) suppression in active stars by an overlying large-scale magnetic field.
J. Alvarado‐Gómez, J. Drake, O. Cohen, S. Moschou, C. Garraffo   +4 more
semanticscholar   +1 more source

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

Deflection of Coronal Mass Ejections in Unipolar Ambient Magnetic Fields

The Astrophysical Journal, 2023
The trajectories of coronal mass ejections (CMEs) are often seen to deviate substantially from a purely radial propagation direction. Such deviations occur predominantly in the corona and have been attributed to “channeling” or deflection of the eruptive
Michal Ben-Nun, Tibor Török, Erika Palmerio, Cooper Downs, Viacheslav S. Titov, Mark G. Linton, Ronald M. Caplan, Roberto Lionello   +7 more
doaj   +1 more source

Evolution of the Radial Size and Expansion of Coronal Mass Ejections Investigated by Combining Remote and In Situ Observations

The Astrophysical Journal, 2023
A fundamental property of coronal mass ejections (CMEs) is their radial expansion, which determines the increase in the CME radial size and the decrease in the CME magnetic field strength as the CME propagates.
Bin Zhuang, Noé Lugaz, Nada Al-Haddad, Réka M. Winslow, Camilla Scolini, Charles J. Farrugia, Antoinette B. Galvin   +6 more
doaj   +1 more source

From the Sun to the Earth: The 13 May 2005 Coronal Mass Ejection [PDF]

, 2010
We report the results of a multi-instrument, multi-technique, coordinated study of the solar eruptive event of 13 May 2005. We discuss the resultant Earth-directed (halo) coronal mass ejection (CME), and the effects on the terrestrial space environment ...
Chashei, I. V., Giunta, A. S., B. V. Jackson, Mikic Z, Chashei IV, Manoharan, PK, Bisi, MM, Jackson, BV, Tokumaru, M., Shishov, VI, Shishov, V. I., A. S. Giunta, M. Tokumaru, Owens, M. J., Pintér, B., S. A. Tyul’bashev, Aguilar-Rodriguez, E., A. G. Wood, Fallows, RA, Linker, J. A., Owen, C. J., Breen, AR, Bisi, M. M., Linker JA, Riley, P., Tokumaru, M, Owens, MJ, Wood, A. G., Manoharan PK, Riley P, Clover, J. M., J. A. Linker, Giunta AS, Glubokova, S. K., Tokumaru M, Jackson BV, Pintér, B, M. S. Hamilton, E. A. Jensen, Shishov VI, Morgan, H., H. Morgan, Fallows RA, Walsh, A. P., S. K. Glubokova, Glubokova SK, Walsh, AP, Fujiki, K., Gonzalez-Esparza A, Jensen, EA, Hamilton, M. S., Manoharan, P. K., Owens MJ, J. M. Clover, M. J. Owens, Tyul’bashev, S. A., Hick, PP, K. Fujiki, Jensen EA, Clover, JM, Breen AR, B. Pintér, Hamilton, MS, Hick PP, A. P. Walsh, Wood AG, P. Riley, Agalya, G, Bisi MM, Z. Mikić, R. A. Fallows, P. P. Hick, Hick, P. P., M. M. Bisi, Clover JM, Pinter B, Wood, AG, Fujiki, K, Tyul'bashev SA, Fallows, R. A., C. J. Owen, Breen, A. R., Walsh AP, Giunta, AS, Gonzalez-Esparza, A., A. R. Breen, G. Agalya, Fujiki K, Mikić, Z., P. K. Manoharan, Chashei, IV, Aguilar-Rodriguez E, Agalya G, Jackson, B. V., Tyul’bashev, SA, Aguilar-Rodriguez, E, Morgan H, Mikić, Z, Owen CJ, Glubokova, SK, I. V. Chashei, Hamilton MS, Jensen, E. A., A. Gonzalez-Esparza, Riley, P, Owen, CJ, Agalya, G., Gonzalez-Esparza, A, Morgan, H, Linker, JA, E. Aguilar-Rodriguez, V. I. Shishov   +111 more
core   +1 more source