2018•MPG.PuRe (Max Planck Society)Requires access
Asteroseismic detection of latitudinal differential rotation in 13 Sun-like stars
O. Benomar, Michael Bazot, Martin Bo Nielsen, L. Gizon, T. Sekii, M. Takata, Hideyuki Hotta, Shravan M. Hanasoge, Katepalli R. Sreenivasan, Jørgen Christensen-Dalsgaard
Open publisher page 45 citations
Abstract
The differentially rotating outer layers of stars are thought to play a role in driving their magnetic activity, but the underlying mechanisms that generate and sustain differential rotation are poorly understood. We report the measurement using asteroseismology of latitudinal differential rotation in the convection zones of 40 Sun-like stars. For the most significant detections, the stars’ equators rotate approximately twice as fast as their midlatitudes. The latitudinal shear inferred from asteroseismology is much larger than predictions from numerical simulations.