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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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Savage_dragon

7:46PM | Thu, 23 August 2012

EEK! Watch out for the EMPs!

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bobrgallegos

7:48PM | Thu, 23 August 2012

Wonderful work on this awesome space scene Magik!! Great info also!!

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barryjeffer

7:49PM | Thu, 23 August 2012

Awesome scene and some fantastic information. thank you.

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Faemike55

8:46PM | Thu, 23 August 2012

Cool work Magik

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bebopdlx

9:03PM | Thu, 23 August 2012

Cool work and info.

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danapommet

9:04PM | Thu, 23 August 2012

I saw this on Facebook first and came right over here to RR. An excellent explanation and super image!

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Minda

9:09PM | Thu, 23 August 2012

wow@ awesome scene magik,excellent work.

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magnus073

9:14PM | Thu, 23 August 2012

Magik, c'est une image fantastique que vous avez créé. J'ai aimé apprendre sur l'éjection de masse coronale, c'était fascinant. Je suis en apprendre davantage sur les (Northern Lights)

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eekdog

9:20PM | Thu, 23 August 2012

sensational space art. looks killer.

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Jay-el-Jay

9:34PM | Thu, 23 August 2012

Now that is one powerful light show.

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Glendaw

10:38PM | Thu, 23 August 2012

Fantastic space scene Magik. Ourstanding burst of flames and great follow-up information.

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brycek

12:09AM | Fri, 24 August 2012

Awesome scene Magik!!

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peedy

12:14AM | Fri, 24 August 2012

Beautiful, MU! Corrie

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mininessie

1:48AM | Fri, 24 August 2012

amazing!!!

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AidanaWillowRaven

1:52AM | Fri, 24 August 2012

Wow...cool ...both the render and the reading.

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DennisReed

1:52AM | Fri, 24 August 2012

I think they have a cure for that! ;)

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odile

2:02AM | Fri, 24 August 2012

Hou! Ça fait peur! Belle réalisation.

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jayfar

2:34AM | Fri, 24 August 2012

A superb fractal and very interesting reading Magik.

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fallen21

2:53AM | Fri, 24 August 2012

Awesome work my friend!

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jendellas

2:56AM | Fri, 24 August 2012

Superb!!

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bazza

3:28AM | Fri, 24 August 2012

Cool image MU well done!!

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UteBigSmile

4:50AM | Fri, 24 August 2012

Ce rendu est superbement bien fait & bonne Info!!

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jmb007

5:47AM | Fri, 24 August 2012

beau travail real,il va falloir que je pense a me remettre au travail aussi!!

)

TheOwl68

6:04AM | Fri, 24 August 2012

Amazing composite, love the effects and thank you for the info also =) outstanding work!

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flavia49

6:29AM | Fri, 24 August 2012

outstanding work

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rayag

8:10AM | Fri, 24 August 2012

Amazing and beautiful as always!

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nitegrafix

8:32AM | Fri, 24 August 2012

It looks so EPIC!!!!!!

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RodolfoCiminelli

9:08AM | Fri, 24 August 2012

Abolutely splendid my friend......!!!

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ladylake

9:21AM | Fri, 24 August 2012

Really cool image.

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Lenord

10:10AM | Fri, 24 August 2012

Cool composition, nice job Peace

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