coronal mass ejection


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coronal mass ejection

[kə‚rōn·əl ′mas i‚jek·shən]
(astronomy)
A bubble of gas threaded with magnetic field lines, with dimensions of up to hundreds of thousands of miles, that is ejected from the solar corona over the course of several hours and can disrupt the solar wind, resulting in a geomagnetic storm.
References in periodicals archive ?
If the magnetic field of a coronal mass ejection happens to point opposite that of Earth's, the eruption can do further damage.
Called a coronal mass ejection because the material originated in the lower levels of the sun's atmosphere, or corona, this material traveled at more than 7 million km/hr.
The loop lifts off the visible surface of the sun and creates instabilities in the underlying material, triggering a coronal mass ejection and then a flare.
Predicting the travel time for a coronal mass ejection is a tricky business.
Earth experienced a geomagnetic storm on June 22, 2015 due to the arrival of an Earth-directed coronal mass ejection, or CME, from June 20.
This is called a coronal mass ejection (CME) and earlier this week it triggered a severe geomagnetic storm, prompting forecasters to predict possible sightings.
Melbourne, July 26 ( ANI ): NASA has recently revealed that Earth nearly missed a solar flare, or Coronal Mass Ejection (CME) that might have plunged the planet towards a global catastrophe on July 23, 2012.
A coronal mass ejection (CME) is believed to be associated with the event.
The data we have collected thus far has included a coronal mass ejection (CME) and a possible solar flare.
When this happens, a region on the Sun becomes incredibly active and can explosively emit much more energy than normal (up to one-sixth of the Sun's entire normal power in one go) as well as a stream of particles that are known as a coronal mass ejection (CME).
Scientists say the coronal mass ejection or CME happened on the Sun's limb and is not headed toward Earth.
A coronal mass ejection (CME) on 2012 Oct 27/28 resulted in magnetic disturbances on Oct 31 when the Bz rotated southwards for about 20 hours.