Magnetic Fields In Early Stellar Evolution: Improving Mass And Age Estimates For Young Stars

Inhibition of convection by strong magnetic fields has been implicated as a potential culprit for the observed systematic errors with stellar models predictions. I test this hypothesis using stellar evolution models that include effects of strong magnetic fields on stellar structure and the efficiency of convection. I show that models including inhibition of convection due to magnetic fields produce better age consistency across effective temperature domains and alter the slope of the mass-radius relation to predict an age consistent with the HR diagram.

{"references": ["Feiden, G.~A. 2016, arXiv:1604.08036", "Feiden, G.~A., Chaboyer, B. 2012, ApJ, 761, 30", "Herczeg, G.~J., Hillenbrand, L.~A. 2015, ApJ, 808, 23", "Kraus, A.~L., Cody, A.~M., Covey, K.~R., et al. 2015, ApJ, 807, 3"]}

Poster #283

Related Organizations

University of North Georgia
United States

Keywords

stars, astronomy, stellar evolution, astrophysics, magnetic fields

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