Results 11 to 20 of about 4,351 (193)

Investigating Remote-Sensing Techniques to Reveal Stealth Coronal Mass Ejections

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Eruptions of coronal mass ejections (CMEs) from the Sun are usually associated with a number of signatures that can be identified in solar disc imagery. However, there are cases in which a CME that is well observed in coronagraph data is missing a clear ...
Erika Palmerio   +13 more
doaj   +1 more source

Earth-affecting solar transients: a review of progresses in solar cycle 24

open access: yesProgress in Earth and Planetary Science, 2021
This review article summarizes the advancement in the studies of Earth-affecting solar transients in the last decade that encompasses most of solar cycle 24. It is a part of the effort of the International Study of Earth-affecting Solar Transients (ISEST)
Jie Zhang   +18 more
doaj   +1 more source

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 Coronagraph (LASCO) onboard the Solar and Heliospheric Observatory (SOHO).
Lou, Y. -Q.   +4 more
openaire   +2 more sources

The relationship of coronal mass ejections to streamers [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 1999
We have examined images from the Large‐Angle and Spectrometric Coronagraph (LASCO) to study the relationship of coronal mass ejections (CMEs) to coronal streamers. We wish to test the suggestion [Low, 1996] that CMEs arise from flux ropes embedded in a streamer erupting and disrupting the streamer. The data span a period of 2 years near Sunspot minimum
Subramanian, Prasad   +3 more
openaire   +2 more sources

Three-dimensional MHD simulation of the 2008 December 12 coronal mass ejection: from the Sun to Interplanetary space

open access: yesJournal of Space Weather and Space Climate, 2019
A three-dimensional time-dependent, numerical magnetohydrodynamic simulation is performed to investigate the propagation of a coronal mass ejection that occurred on 12 December 2008.
Zhang Man, Feng Xue Shang, Yang Li Ping
doaj   +1 more source

Proton beam velocity distributions in an interplanetary coronal mass ejection [PDF]

open access: yesAnnales Geophysicae, 2009
The plasma and magnetic-field instruments on the Helios 2 spacecraft, which was on 3 April 1979 located at 0.68 AU, detected an interplanetary coronal mass ejection (ICME) that revealed itself by the typical signature of magnetic field rotation.
E. Marsch, S. Yao, C.-Y. Tu
doaj   +1 more source

Simulation study on the propagation process of coronal mass ejection

open access: yes地球与行星物理论评, 2022
Coronal mass ejection (CME) is a kind of space weather phenomenon caused by the intense activity of the sun. Important issues of concern to the space weather community include understanding the propagation and evolution of a particular CME in the corona ...
Mengxuan Ma, Fang Shen, Yousheng Liu
doaj   +1 more source

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

Planar magnetic structures in coronal mass ejection-driven sheath regions [PDF]

open access: yesAnnales Geophysicae, 2016
Planar magnetic structures (PMSs) are periods in the solar wind during which interplanetary magnetic field vectors are nearly parallel to a single plane.
E. Palmerio   +3 more
doaj   +1 more source

Coronal Mass Ejections and Coronal Structures [PDF]

open access: yes, 1989
The coronal portion of the solar atmosphere consists of a wide variety of structures which exhibit a similarly wide variety of dynamical processes and kinds of activity. The launch of the SMM presented an opportunity to study the low and intermediate corona from space with multiple instruments for protracted periods of time.
E. Hildner   +20 more
openaire   +1 more source

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