Results 11 to 20 of about 15,246 (211)

Periodicities in solar coronal mass ejections [PDF]

open access: yesMonthly 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 ...
Zuhui Fan
exaly   +5 more sources

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

open access: yesData 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   +2 more
doaj   +4 more sources

Solar Activity and Coronal Mass Ejections: Teacher's Guide [PDF]

open access: yes, 2013
In this activity, students investigate solar activity and discover that the Sun constantly emits matter into space in the form of the solar wind. They will also find that from time to time the sun also ejects clouds of charged particles in an event ...

core   +2 more sources

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

open access: yesThe 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   +3 more
openaire   +3 more sources

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

open access: yesLiving Reviews in Solar Physics
Karin Dissauer   +2 more
exaly   +2 more sources

Solar Coronal Mass Ejections [PDF]

open access: yesSymposium - 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   +1 more source

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

open access: yesIranian 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

Interaction of coronal mass ejections and the solar wind

open access: yesAstronomy & Astrophysics, 2022
Aims.Our goal is to thoroughly analyse the dynamics of single and multiple solar eruptions, as well as a stealth ejecta. The data were obtained through self-consistent numerical simulations performed in a previous study. We also assess the effect of a different background solar wind on the propagation of these ejecta to Earth.Methods.We calculated all ...
D.-C. Talpeanu   +4 more
openaire   +4 more sources

What Do Halo CMEs Tell Us about Solar Cycle 25?

open access: yesThe 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   +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

open access: yesThe 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   +6 more
doaj   +1 more source

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