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dc.contributor.authorKlement, R.
dc.contributor.authorSchaefer, G.H.
dc.contributor.authorGies, D.R.
dc.contributor.authorWang, L.
dc.contributor.authorBaade, D.
dc.contributor.authorRivinius, T.
dc.contributor.authorGallenne, A.
dc.contributor.authorCarciofi, A.C.
dc.contributor.authorMonnier, J.D.
dc.contributor.authorMérand, A.
dc.contributor.authorAnugu, N.
dc.contributor.authorKraus, S.
dc.contributor.authorDavies, C.L.
dc.contributor.authorLanthermann, C.
dc.contributor.authorGardner, T.
dc.contributor.authorWysocki, P.
dc.contributor.authorEnnis, J.
dc.contributor.authorLabdon, A.
dc.contributor.authorSetterholm, B.R.
dc.contributor.authorLe Bouquin, J.-B.
dc.date.accessioned2022-04-11T23:17:51Z
dc.date.available2022-04-11T23:17:51Z
dc.date.issued2022
dc.identifier.citationKlement, R., Schaefer, G. H., Gies, D. R., Wang, L., Baade, D., Rivinius, T., Gallenne, A., Carciofi, A. C., Monnier, J. D., Mérand, A., Anugu, N., Kraus, S., Davies, C. L., Lanthermann, C., Gardner, T., Wysocki, P., Ennis, J., Labdon, A., Setterholm, B. R., & Le Bouquin, J.-B. (2022). Interferometric Detections of sdO Companions Orbiting Three Classical Be Stars. Astrophysical Journal.
dc.identifier.issn0004-637X
dc.identifier.doi10.3847/1538-4357/ac4266
dc.identifier.urihttp://hdl.handle.net/10150/663927
dc.description.abstractClassical Be stars are possible products of close binary evolution, in which the mass donor becomes a hot, stripped O- or B-type subdwarf (sdO/sdB), and the mass gainer spins up and grows a disk to become a Be star. While several Be+sdO binaries have been identified, dynamical masses and other fundamental parameters are available only for a single Be+sdO system, limiting the confrontation with binary evolution models. In this work, we present direct interferometric detections of the sdO companions of three Be stars - 28 Cyg, V2119 Cyg, and 60 Cyg - all of which were previously found in UV spectra. For two of the three Be+sdO systems, we present first orbits and preliminary dynamical masses of the components, revealing that one of them could be the first identified progenitor of a Be/X-ray binary with a neutron star companion. These results provide new sets of fundamental parameters that are crucially needed to establish the evolutionary status and origin of Be stars. © 2022. The Author(s). Published by the American Astronomical Society.
dc.language.isoen
dc.publisherIOP Publishing Ltd
dc.rightsCopyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleInterferometric Detections of sdO Companions Orbiting Three Classical Be Stars
dc.typeArticle
dc.typetext
dc.contributor.departmentSteward Observatory, Department of Astronomy, University of Arizona
dc.identifier.journalAstrophysical Journal
dc.description.noteOpen access journal
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleAstrophysical Journal
refterms.dateFOA2022-04-11T23:17:51Z


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Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
Except where otherwise noted, this item's license is described as Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.