| 释义 |
tachocline
tach·o·cline T5007550 (tăk′ə-klīn′)n. The boundary in the solar interior between the outer convection zone and the inner radiative zone. This boundary arises from the fact that the convection zone rotates faster near the solar equator than it does near the solar poles, while the interior of the sun rotates equally at all latitudes.
[Greek takhos, speed + -cline.]tachocline
tachocline[′tak·ə‚klīn] (astronomy) A zone of radial shear in the interior of the sun that is located at the base of the convection zone at a distance from the sun's center equal to about 0.7 of the sun's radius, and represents an abrupt transition from the rotation rates in the convection zone to those in the underlying layers. |