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Integration of solar flare and coronal mass ejection event dataHarvard Dataverse [PDF]

Data in Brief
Solar flares and coronal mass ejections are solar transient events that can impact our technological infrastructure in near-Earth and Earth environments. While related, not all flares generate CMEs and there are a limited number of resources that connect
Anli Ji, Manolis K. Georgoulis, Berkay Aydin   +2 more
doaj   +2 more sources

Discrepancies in the Properties of a Coronal Mass Ejection on Scales of 0.03 au as Revealed by Simultaneous Measurements at Solar Orbiter and Wind: The 2021 November 3–5 Event [PDF]

The Astrophysical Journal
Simultaneous in situ measurements of coronal mass ejections (CMEs), including both plasma and magnetic field, by two spacecraft in radial alignment have been extremely rare.
F. Regnault, N. Al-Haddad, N. Lugaz, C. J. Farrugia, W. Yu, B. Zhuang, E. E. Davies   +6 more
doaj   +2 more sources

Coronal dimmings and what they tell us about solar and stellar coronal mass ejections [PDF]

Living Reviews in Solar Physics
Coronal dimmings associated with coronal mass ejections (CMEs) from the Sun have gained much attention since the late 1990s when they were first observed in high-cadence imagery of the SOHO/EIT and Yohkoh/SXT instruments.
Astrid M. Veronig, Karin Dissauer, Bernhard Kliem, Cooper Downs, Hugh S. Hudson, Meng Jin, Rachel Osten, Tatiana Podladchikova, Avijeet Prasad, Jiong Qiu, Barbara Thompson, Hui Tian, Angelos Vourlidas   +12 more
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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

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

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

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

A Comparative Study of Two Contrasting Cosmic-Ray Events Caused by Solar Eruptions from NOAA AR 12673 in 2017 September

The Astrophysical Journal, 2023
Two major solar eruptions on AR 12673 produced a Forbush decrease (FD) event (reduction of cosmic rays) on 2017 September 8 and ground-level enhancement (GLE; enhancement of cosmic rays) on 2017 September 10.
Xiao Xia Yu, Shuang Nan Zhang, Hong Lu, Hong Bo Hu, Ping Zhang, Wei Kang Gao   +5 more
doaj   +1 more source

Unraveling the Thermodynamic Enigma between Fast and Slow Coronal Mass Ejections

The Astrophysical Journal, 2023
Coronal mass ejections (CMEs) are the most energetic expulsions of magnetized plasma from the Sun that play a crucial role in space weather dynamics.
Soumyaranjan Khuntia, Wageesh Mishra, Sudheer K. Mishra, Yuming Wang, Jie Zhang, Shaoyu Lyu   +5 more
doaj   +1 more source