Results 21 to 30 of about 17,830 (208)
Deriving the radial distances of wide coronal mass ejections from elongation measurements in the heliosphere - Application to CME-CME interaction [PDF]
, 2009 We present general considerations regarding the derivation of the radial distances of coronal mass ejections (CMEs) from elongation angle measurements such as those provided by SECCHI and SMEI, focusing on measurements in the Heliospheric Imager 2 (HI-2)
Lugaz, N., Roussev, I. I., Vourlidas, A.
core +9 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
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Deciphering the Slow-rise Precursor of a Major Coronal Mass Ejection
The Astrophysical Journal Letters, 2023 Coronal mass ejections are explosive plasma phenomena prevalently occurring on the Sun and probably on other magnetically active stars. However, how their pre-eruptive configuration evolves toward the main explosion remains elusive.
X. Cheng +5 more
doaj +1 more source
The Inhomogeneity of Composition Along the Magnetic Cloud Axis
Frontiers in Physics, 2021 Coronal mass ejections (CMEs) are one of the most energetic explosions in the solar system. It is generally accepted that CMEs result from eruptions of magnetic flux ropes, which are dubbed as magnetic clouds (MCs) in interplanetary space.
Hongqiang Song +9 more
doaj +1 more source
Effect of an Interplanetary Coronal Mass Ejection on Saturn’s Radio Emission
Frontiers in Astronomy and Space Sciences, 2022 The Saturn Kilometric Radiation (SKR) was observed for the first time during the flyby of Saturn by the Voyager spacecraft in 1980. These radio emissions, in the range of a few kHz to 1 MHz, are emitted by electrons travelling around auroral magnetic ...
B. Cecconi +4 more
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Observations of flux rope formation prior to coronal mass ejections [PDF]
, 2013 Understanding the magnetic configuration of the source regions of coronal mass ejections (CMEs) is vital in order to determine the trigger and driver of these events.
Green, Lucie M., Kliem, Bernhard
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Estimation of a coronal mass ejection magnetic field strength using radio observations of gyrosynchrotron radiation [PDF]
, 2017 Coronal mass ejections (CMEs) are large eruptions of plasma and magnetic field from the low solar corona into interplanetary space. These eruptions are often associated with the acceleration of energetic electrons which produce various sources of high ...
Carley, Eoin P. +3 more
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Coronal Mass Ejections and Coronal Structures [PDF]
, 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
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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. +4 more
openaire +2 more sources
Communications Earth & Environment, 2023 Open magnetic flux in the polar cap almost completely disappeared and the Earth’s magnetotail was compressed into a calabash shape during the 9th April 2015 coronal mass ejection, according to magnetohydrodynamic simulations and observations from DMSP ...
Xiang-Yu Wang +13 more
doaj +1 more source