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Coronal Mass Ejection

Fractal Space posted on Aug 23, 2012
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Description


Apo for the coronal mass ejection bryce for everything else --------------- Coronal Mass Ejection A coronal mass ejection (CME) is a massive burst of solar wind and magnetic fields rising above the solar corona or being released into space. Coronal mass ejections are often associated with other forms of solar activity, most notably solar flares, but a causal relationship has not been established. Most ejections originate from active regions on Sun's surface, such as groupings of sunspots associated with frequent flares. Near solar maxima the Sun produces about three CMEs every day, whereas near solar minima there is about one CME every five days. Impact on Earth When the ejection is directed towards the Earth and reaches it as an interplanetary CME (ICME), the shock wave of the traveling mass of Solar Energetic Particles causes a geomagnetic storm that may disrupt the Earth's magnetosphere, compressing it on the day side and extending the night-side magnetic tail. When the magnetosphere reconnects on the nightside, it releases power on the order of terawatt scale, which is directed back toward the Earth's upper atmosphere. Solar Energetic Particles can cause particularly strong aurorae in large regions around Earth's magnetic poles. These are also known as the Northern Lights (aurora borealis) in the northern hemisphere, and the Southern Lights (aurora australis) in the southern hemisphere. Coronal mass ejections, along with solar flares of other origin, can disrupt radio transmissions and cause damage to satellites and electrical transmission line facilities, resulting in potentially massive and long-lasting power outages. Humans in space or at high altitudes, for example, in airplanes, risk exposure to relatively intense so-called cosmic rays. Cosmic rays are potentially lethal in high quantities. The energy absorbed by the astronaut is not reduced by a typical spacecraft shield design and, if any protection is provided for the astronaut, it would result from changes in the microscopic inhomogeneity of the energy absorption events. VIDEO of a SOLAR FILAMENT being launched ------------------------------------ Éjection de masse coronale Une éjection de masse coronale (en anglais, coronal mass ejection : CME) est une bulle de plasma produite dans la couronne solaire. Elle est souvent liée à une éruption solaire ou à l'apparition d'une protubérance solaire, mais ce n'est pas systématique. Les CME sont des phénomènes à grande échelle : leur taille peut atteindre plusieurs dizaines de rayons solaires. Elles modifient les caractéristiques du vent solaire, se déplaçant à très grande vitesse dans le milieu interplanétaire (entre 100 km/s et 2 500 km/s) et peuvent parcourir la distance Terre-Soleil en quelques jours (typiquement trois jours). Le champ magnétique des CME est très fort : une CME atteignant la Terre peut donc provoquer des orages magnétiques en interagissant avec le champ magnétique terrestre. On observe alors des phénomènes de reconnexion magnétique et certaines lignes de champs peuvent s'ouvrir, affaiblissant ainsi le « bouclier » magnétique de la Terre. Les CME jouent donc un rôle clef dans la météorologie solaire. Pour détecter les CME, on utilise un coronographe à l'aide duquel on essaie de définir la vitesse et la direction de propagation ainsi que l'étendue de la CME. La fréquence des émissions varie en fonction du cycle solaire. On observe en moyenne une CME par semaine lors du minimum solaire et deux à trois CME par jour lors du maximum solaire. Toutefois, seule une petite partie des CME est dirigée vers la Terre et par conséquent susceptible de provoquer des orages magnétiques. VIDEO d'une PROTUBÉRANCE SOLAIRE Thanks - Merci MagikUnicorn

Comments (46)


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clbsmiley

11:01AM | Fri, 24 August 2012

Wow!!! Great one!!

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Flint_Hawk

11:16AM | Fri, 24 August 2012

Marvelous!

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carlx

11:35AM | Fri, 24 August 2012

Wonderful composition, Magik!!!

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mickeyrony

12:08PM | Fri, 24 August 2012

Hooo.... on se croirait dans un film érotique .. Je lisais éjaculation ?? Mais bon ce n'est pas pareil du tout Un sourire vaut mieux que deux tu l'auras Bravo encore ((5++))

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drifterlee

1:25PM | Fri, 24 August 2012

Very beautiful sky scene!!!!!

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cricke49

2:02PM | Fri, 24 August 2012

awesome render magik and thanx for the history lesson! IDK!:)*5+

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kbrog

3:13PM | Fri, 24 August 2012

I hope we don't get hit by one like this! : Fantastic work! :)

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Star4mation

4:38PM | Fri, 24 August 2012

Ace image Magik :)

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Richardphotos

4:50PM | Fri, 24 August 2012

outstanding Bryce syfy art

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sandra46

5:11PM | Fri, 24 August 2012

WONDERFUL WORK!

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RodS

11:44AM | Sat, 25 August 2012

We need to find a way to harness that energy... A fantastic render and great information, Real!

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emmecielle

1:33PM | Sat, 25 August 2012

Fabulous scene! Great work! :)

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artistheat

4:05PM | Sat, 25 August 2012

Very Cool Effect and Image

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JuliSonne

5:23PM | Sat, 25 August 2012

WOW...it looks very realistic!

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bluart

10:16AM | Sun, 26 August 2012

tres interessant,beau travail

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evielouise

11:44PM | Mon, 27 August 2012

Awesome work and I will go see the video!

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