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Which way does the solar wind blow? 5nvklj





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Which way does the solar wind blow?

Dragon
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Which way does the solar wind blow? Empty Which way does the solar wind blow?

Post by Dragon Sat Jun 05, 2021 4:25 am

The surface of the sun churns with energy and frequently ejects masses of highly-magnetized plasma towards Earth.

Sometimes these ejections are strong enough to crash through the magnetosphere—the natural magnetic shield that protects the Earth—damaging satellites or electrical grids.

Such space weather events can be catastrophic.

Turbulence plays a key role in the dynamics of the solar wind and coronal mass ejections.

This complex phenomenon has many facets, including the role of shock-turbulence interaction and ion acceleration.


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Which way does the solar wind blow? 334pu7m
Dragon
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Which way does the solar wind blow? Empty Re: Which way does the solar wind blow?

Post by Dragon Sat Jun 05, 2021 4:26 am

Which way does the solar wind blow? Which-way-does-the-sol
Credit: Talwinder Singh, Mehmet S. Yalim, Nikolai V. Pogorelov, and Nat Gopalswamy

Top panel, from left to right) July 12, 2012 coronal mass ejection seen in STEREO B Cor2, SOHO C2, and STEREO A Cor2 coronagraphs, respectively.

(Bottom panel) The same images overlapped with the model results.


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Which way does the solar wind blow? 334pu7m
Dragon
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Which way does the solar wind blow? Empty Re: Which way does the solar wind blow?

Post by Dragon Sat Jun 05, 2021 4:28 am

Which way does the solar wind blow? Which-way-does-the-sol-1
Credit: From Space Weather April 2020, with permission of the American Geophysical Union.

The coronal mass ejection threaded by magnetic field lines in the equatorial slice colored by plasma temperature.


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Which way does the solar wind blow? 334pu7m
Dragon
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Which way does the solar wind blow? Empty Re: Which way does the solar wind blow?

Post by Dragon Sat Jun 05, 2021 4:32 am



There’s a wind that emanates from the Sun.

It blows not like a soft whistle but like a hurricane’s scream.

Made of electrons, protons and heavier ions, the solar wind courses through the solar system at roughly 1 million mph (1.6 million kph), barreling over everything in its path.

Yet through the wind’s roar, NASA’s Parker Solar Probe hears the small chirps, squeaks and rustles that hint at the origin of this mysterious and ever-present wind.

The spacecraft’s FIELDS instrument can eavesdrop on the electric and magnetic fluctuations caused by plasma waves.

The Parker Solar Probe it can “hear” when the waves and particles interact with one another, recording frequency and amplitude information about these plasma waves that scientists could then play as sound waves.

And it results in some striking sounds.


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Which way does the solar wind blow? 334pu7m

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