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Scientists Measure Coronal Loop Plasma Speeds

11 Jul 2012, 02:41 UTC
Scientists Measure Coronal Loop Plasma Speeds
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An international team of scientists has observed the movement of gases at one million degrees Kelvin in a coronal loop. These new observations were made from the Hinode satellite, formerly Solar-B, a joint ESA, NASA, JAXA and UK satellite launched in 2006. “Active regions are now occurring frequently across the Sun,” said Dr. Helen Mason from [...]

A coronal loop captured by the TRACE satellite (Credits: NASA).
An international team of scientists has observed the movement of gases at one million degrees Kelvin in a coronal loop. These new observations were made from the Hinode satellite, formerly Solar-B, a joint ESA, NASA, JAXA and UK satellite launched in 2006.
“Active regions are now occurring frequently across the Sun,” said Dr. Helen Mason from the University of Cambridge’s Department of Applied Mathematics and Theoretical Physics. “We have a really great opportunity to study them with solar spacecraft, such as Hinode and the Solar Dynamics Observatory.”
Coronal loops are prominences composed of plasma that is cooler than the rest of the corona. These prominences follow the magnetic field of the sun in regular loops. In recent weeks, the solar activity has been increasing with a greater number of strong solar events. Solar ...

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