Results 1 to 10 of about 30,967 (299)

Periodicities in solar coronal mass ejections [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
Mid-term quasi-periodicities in solar coronal mass ejections (CMEs) during the most recent solar maximum cycle 23 are reported here for the first time using the four-year data (February 5, 1999 to February 10, 2003) of the Large Angle Spectrometric Coronagraph (LASCO) onboard the Solar and Heliospheric Observatory (SOHO).
Lou, Y. -Q., Wang, Y. -M., Fan, Z., Wang, S., Wang, J.   +4 more
core   +6 more sources

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

Solar Coronal Mass Ejections [PDF]

Symposium - International Astronomical Union, 1990
In addition to the more or less steady solar wind, the Sun also ejects mass in highly time dependent events taking place in the corona once every few days at solar activity minimum and as often as three times a day at solar activity maximum (Hundhausen 1988, Low 1986).
A. J. Hundhausen, D. G. Sime, B. C. Low
openaire   +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

Relationship of Coronal Mass Ejection Events with Solar Flares and Coronal Holes [PDF]

Symposium - International Astronomical Union, 1990
We present an analysis of the relationship between coronal mass ejection (CME) events with solar flares and coronal holes. Out of 79 CME events whose location and span are known, 10 CME event circles contain solar flares. On the other hand out of 71 CME events (selected for the study with coronal holes) 40 CME event circles contain coronal holes.
V. K. Verma
openalex   +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
doaj   +2 more sources

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

Coronal dimmings associated with coronal mass ejections on the solar limb [PDF]

The Astrophysical Journal, 2020
<p>We studied 43 coronal dimming events associated with Earth-directed coronal mass ejections (CMEs) that were observed in quasi-quadrature by the SDO and STEREO satellites. We derived the properties of the dimmings as observed above the limb by ...
Galina Chikunova, Karin Dissauer, Tatiana Podladchikova, Astrid M. Veronig   +3 more
openaire   +3 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

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