Solar Flare: The Cause for an Aurora Waves
At the surface of the Sun, active region AR 2158 produced a powerful X-class flare, Wednesday, Sept. 10 at 17 h 45 GMT. A double coronal mass ejection was then met with the Earth's magnetosphere and engulfed the upper atmosphere.
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During the night of September 12 to 13, it was not impossible for observers located in the north of France to have the chance to witness a rare auroral dance. However, it seems that the show is more expressed at higher latitudes.
Coronal mass fast ejection recognized at Sept 10, following a amazing X1. 6-class solar energy appear, any field-C3 coronagraph Lasco Soho. © NASA, ESA, Soho
Monday, September 8, a coronal mass ejection ( CME ) left the surface of the Sun and progressed into interplanetary space towards the Earth . Between 11 and 12 September, a peaceful wave of aurora has been seen at latitudes the highest in the globe. A few hours later, in the evening on September 12, a second wave, higher intensity, lit the night in many parts of the circle arctic . The active region AR 2158 was in each case the cause of these geomagnetic storms.
During videos, any amazing X1. 6-class eruption taken within the top of Sunrays Sept 10, 2014 until such time as 17h 49 GMT by way of the SDO satellite television on pc. © NASA SDO
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Episode inside Sun's light
It can be Sunday, Sept 10, 2014 until eventually 17h forty six GMT all the established part (Energetic Section, AR), that happen to be accessible sunspots, is all the location of an thrashing photo voltaic size.
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Physicists with the NOAA (State Oceanic and additionally Atmospheric Governing administration) bought him or her any X1. 6 style (quality Back button will be the highest possible degree). Your spacecraft SDO (The sun's The outdoors Observatory), which inturn won't get out of this music artist eye, witnessed all the sign ultraviolet published with the occasion. Used which usually moment during the sunshine, looking at the planet, squalls plasma propelled straight into house, first over 3750 kilometre and utes and be able to decelerated that will concerning 1400 kilometre and lenses, was afterward brought on in your area.
The pros so, who forecasted a specially strenuous show about auroras at dusk with Sept 12 will not regrettably wrongly recognized. All the airborne debris tend to be lighted in essence the particular superior natural environment to make sure you most of north The european union together with Nova scotia.
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Of their dilemma, they just don't banish which usually observers proudly located from mid-latitudes mainly because north This particular language are also able to be present at a fabulous unusual picture auroral.
Modelling that partnership about sunlight contaminants while using Global top air flow. When asleep in Sept 12 to make sure you 13, 2014, auroras happen to be especially strenuous inside instances of the particular Arctic Round nevertheless able to placed inside white areas. © NOAA
The intensity of the aurora is difficult to predict
"It's pretty rare that two CME of this magnitude can come so quickly in succession, commented Thomas Berger, director of the Center for Space Weather Forecasting NOAA. For this reason, we can not rule out higher levels of storm can also -be G4 or highest level, especially in the polar regions ". Currently a moderate level, between G2 and G3, these storms could move towards a greater power. But it will depend on how "they will be coupled and determine the intensity of the geomagnetic storm".
In the aftermath of this episode, its intensity was ranked G3 on the scale of geomagnetic storms. Admittedly, this burst has nothing to do with the Carrington event of 1859 or the more recent of the solar super-storm of 2012 that had brushed our magnetosphere.
Now NOAA and the site Spaceweather estimate that 40% risk of a new eruption of class X and some 75% for it to happen in a more moderate, Class M in the next 48 hours.
