Results 21 to 30 of about 15,851 (215)

Is There a Dynamic Difference between Stealthy and Standard Coronal Mass Ejections?

The Astrophysical Journal, 2022
Stealthy coronal mass ejections (CMEs), lacking low coronal signatures, may result in significant geomagnetic storms. However, the mechanism of stealthy CMEs is still highly debated.
Beili Ying, Alessandro Bemporad, Li Feng, Nariaki V. Nitta, Weiqun Gan   +4 more
doaj   +1 more source

Investigating the Magnetic Structure of Interplanetary Coronal Mass Ejections Using Simultaneous Multispacecraft In Situ Measurements

The Astrophysical Journal, 2023
In situ measurements from spacecraft typically provide a time series at a single location through coronal mass ejections (CMEs), and they have been one of the main methods to investigate CMEs.
F. Regnault, N. Al-Haddad, N. Lugaz, C. J. Farrugia, W. Yu, E. E. Davies, A. B. Galvin, B. Zhuang   +7 more
doaj   +1 more source

Rotation of a Stealth CME on 2012 October 5 Observed in the Inner Heliosphere

The Astrophysical Journal, 2023
Coronal mass ejections (CMEs) are subject to changes in their direction of propagation, tilt, and other properties. This is because CMEs interact with the ambient solar wind and other large-scale magnetic field structures.
Sandeep Kumar, Dinesha V. Hegde, Nandita Srivastava, Nikolai V. Pogorelov, Nat Gopalswamy, Seiji Yashiro   +5 more
doaj   +1 more source

Eruptive Event Generator Based on the Gibson-Low Magnetic Configuration [PDF]

, 2017
Coronal Mass Ejections (CMEs), a kind of energetic solar eruptions, are an integral subject of space weather research. Numerical magnetohydrodynamic (MHD) modeling, which requires powerful computational resources, is one of the primary means of studying ...
Borovikov, Dmitry, Gombosi, Tamas I., Jin, Meng, Manchester, Ward B., Sokolov, Igor V.   +4 more
core   +1 more source

Coalescence of Magnetic Flux Ropes Within Interplanetary Coronal Mass Ejections: Multi-cases Studies

Frontiers in Physics, 2019
Coronal mass ejections (CMEs) are intense solar explosive eruptions and have significant impact on geomagnetic activities. It is important to understand how CMEs evolve as they propagate in the solar-terrestrial space.
Yan Zhao, Yan Zhao, Hengqiang Feng, Hengqiang Feng, Qiang Liu, Qiang Liu, Guoqing Zhao, Guoqing Zhao   +7 more
doaj   +1 more source

Proton Temperature Anisotropy within the Interplanetary Coronal Mass Ejections Sheath at 1 au

The Astrophysical Journal Letters, 2023
The sheath plasma of interplanetary coronal mass ejections (ICMEs) is highly compressed, heated, turbulent, and magnetically intense relative to the ambient solar wind.
Zubair I. Shaikh, Anil N. Raghav, Ivan Y. Vasko   +2 more
doaj   +1 more source

Halo Coronal Mass Ejections during Solar Cycle 24: reconstruction of the global scenario and geoeffectiveness [PDF]

, 2017
In this study we present a statistical analysis of 53 fast Earth-directed halo CMEs observed by the SOHO/LASCO instrument during the period Jan. 2009-Sep.
Messerotti, Mauro, Poedts, Stefaan, Rodriguez, Luciano, Scolini, Camilla   +3 more
core   +4 more sources

The Effect of Helio-Geomagnetic Activity in the Geo-Environment and by Extension to Human Health

Atmosphere
Solar activity encompasses various phenomena within the solar atmosphere, notably including eruptive events like solar flares and coronal mass ejections (CMEs) [...]
Panagiota Preka-Papadema, Chris G. Tzanis   +1 more
doaj   +1 more source

SOLAR WIND INVESTIGATIONS BY OBSERVATIONS OF INTERPLANETARY SCINTILLATIONS OF COSMIC RADIO SOURCES AT DECAMETER WAVELENGTHS

Radio Physics and Radio Astronomy, 2017
Purpose: Description of the solar wind investigation technique based on interplanetary scintillation observations of the decameter radio emission of space radio sources.
N. N. Kalinichenko, M. R. Olyak, O. O. Konovalenko, I. N. Bubnov, S. N. Yerin, A. I. Brazhenko, O. L. Ivantishin, O. A. Lytvynenko   +7 more
doaj   +1 more source

Energetics of a Solar Flare and a Coronal Mass Ejection Generated by a Hot Channel Eruption

The Astrophysical Journal, 2023
Hot channels (HCs) are prevalent in the solar corona and play a critical role in driving flares and coronal mass ejections (CMEs). In this paper, we estimate the energy content of an X1.4 eruptive flare with a fast CME generated by an HC eruption on 2011
Qingmin Zhang, Weilin Teng, Dong Li, Jun Dai, Yanjie Zhang   +4 more
doaj   +1 more source