SIMBAD references

2018ApJ...862...90G - Astrophys. J., 862, 90-90 (2018/July-3)

The revolution revolution: magnetic morphology driven spin-down.

GARRAFFO C., DRAKE J.J., DOTTER A., CHOI J., BURKE D.J., MOSCHOU S.P., ALVARADO-GOMEZ J.D., KASHYAP V.L. and COHEN O.

Abstract (from CDS):

Observations of young open clusters (OCs) show a bimodal distribution of rotation periods that has been difficult to explain with existing stellar spin-down models. Detailed magnetohydrodynamic (MHD) stellar wind simulations have demonstrated that surface magnetic field morphology has a strong influence on wind-driven angular momentum loss. Observations suggest that faster rotating stars store a larger fraction of their magnetic flux in higher-order multipolar components of the magnetic field. In this work, we present an entirely predictive new model for stellar spin-down that accounts for the stellar surface magnetic field configuration. We show how a magnetic complexity that evolves from complex toward simple configurations as a star spins down can explain the salient features of stellar rotation evolution, including the bimodal distribution of both slow and fast rotators seen in young OCs.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): stars: activity - stars: evolution - stars: rotation

Simbad objects: 10

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2018ApJ...862...90G and select 'bookmark this link' or equivalent in the popup menu


2019.12.11-00:51:25

© Université de Strasbourg/CNRS

    • Contact