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HD 156324: A Tidally Locked Magnetic SB3 With an Orbitally Disrupted Centrifugal Magnetosphere
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Observational Astronomy.
ESO European Org Astron Res Southern Hemisphere, Casilla 19001, Santiago 19, Chile.
Royal Mil Coll Canada, Dept Phys, Kingston, ON K7K 7B4, Canada.
Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France.
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2018 (English)In: CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO, ISSN 1335-1842, Vol. 48, no 1, p. 298-299Article in journal (Refereed) Published
Abstract [en]

Period analysis of radial velocity, equivalent width, and magnetic measurements of the SB3 system HD 156324 yield identical results in all cases, indicating the system is tidally locked with orbital and rotational periods of 1.58 d. Its H alpha emission profile exhibits marked morphological departures from the usual pattern observed amongst magnetic B-type stars, which can plausibly be ascribed to tidal disruption of the gravitocentrifugal potential.

Place, publisher, year, edition, pages
SLOVAK ACADEMY SCIENCES ASTRONOMICAL INST , 2018. Vol. 48, no 1, p. 298-299
Keywords [en]
stars: individual: HD 156324, stars: magnetic field, binaries: spectroscopic, binaries (including multiple): close, stars: massive
National Category
Astronomy, Astrophysics and Cosmology
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URN: urn:nbn:se:uu:diva-357777ISI: 000432791300051OAI: oai:DiVA.org:uu-357777DiVA, id: diva2:1240822
Available from: 2018-08-22 Created: 2018-08-22 Last updated: 2018-08-22Bibliographically approved

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