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Possible evidence for a magnetic dynamo in hot Algols

Published online by Cambridge University Press:  24 September 2020

R. E. Mennickent
Affiliation:
Universidad de Concepción, Departamento de Astronoma, Casilla 160-C, Concepción, Chile emails: [email protected], [email protected], [email protected], [email protected]
J. Garcés
Affiliation:
Universidad de Concepción, Departamento de Astronoma, Casilla 160-C, Concepción, Chile emails: [email protected], [email protected], [email protected], [email protected]
G. Djurašević
Affiliation:
Astronomical Observatory, Volgina 7, 11060 Belgrade 38, Serbia email: [email protected] Issac Newton institute of Chile, Yugoslavia Branch, 11060, Belgrade, Serbia
G. Rojas
Affiliation:
Universidad de Concepción, Departamento de Astronoma, Casilla 160-C, Concepción, Chile emails: [email protected], [email protected], [email protected], [email protected]
D. Schleicher
Affiliation:
Universidad de Concepción, Departamento de Astronoma, Casilla 160-C, Concepción, Chile emails: [email protected], [email protected], [email protected], [email protected]
S. Otero
Affiliation:
American Association of Variable Star Observers, USA email: [email protected]
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Abstract

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We present the case of hot semi-detached Algols showing photometric cycles longer than the orbital period. The evidence indicating that this long cycle might be due to a magnetic dynamo operating in the rapidly rotating donor star is examined.

Type
Contributed Papers
Copyright
© International Astronomical Union 2020

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