Tachocline

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Science and technology

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What Wikipedia says

The tachocline is the transition region of stars of more than 0.3 solar masses, between the radiative interior and the differentially rotating outer convective zone. This causes the region to have a very large shear as the rotation rate changes very rapidly.

Excerpt from the Wikipedia article “Tachocline”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Original: Global Oscillation Network Group Vector: TilmannR, CC BY-SA 3.0, via Wikimedia Commons.