Asteroseismic detection of latitudinal differential rotation in 13 Sun-like stars

Othman Benomar, Michael Bazot, Martin Bo Nielsen, Laurent Gizon, T. Sekii, M. Takata, H. Hotta, Shravan Hanasoge, Katepalli Sreenivasan, J. Christensen-Dalsgaard

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Pages (from-to)1231-1234
Number of pages4
JournalScience
Volume361
Issue number6408
DOIs
StatePublished - Sep 21 2018

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Solar System
Convection

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Asteroseismic detection of latitudinal differential rotation in 13 Sun-like stars. / Benomar, Othman; Bazot, Michael; Nielsen, Martin Bo; Gizon, Laurent; Sekii, T.; Takata, M.; Hotta, H.; Hanasoge, Shravan; Sreenivasan, Katepalli; Christensen-Dalsgaard, J.

In: Science, Vol. 361, No. 6408, 21.09.2018, p. 1231-1234.

Research output: Contribution to journalArticle

Benomar, Othman ; Bazot, Michael ; Nielsen, Martin Bo ; Gizon, Laurent ; Sekii, T. ; Takata, M. ; Hotta, H. ; Hanasoge, Shravan ; Sreenivasan, Katepalli ; Christensen-Dalsgaard, J. / Asteroseismic detection of latitudinal differential rotation in 13 Sun-like stars. In: Science. 2018 ; Vol. 361, No. 6408. pp. 1231-1234.
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