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Helioseismology / Listening to the inside of the Sun

LessThunk: How exactly does one observe oscillations on the surface of the Sun? By
measuring the Doppler shift of light coming from a given location on the
Sun’s surface using specially designed spectrometers, astronomers can tell
whether that spot is moving inward or outward, and at what rate.

http://itotd.com/articles/255/helioseismology/


Categorised as: interesting

Posted by: Kramer

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