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dc.contributor.authorLester, KV
dc.contributor.authorSchaefer, GH
dc.contributor.authorFekel, FC
dc.contributor.authorGies, DR
dc.contributor.authorHenry, TJ
dc.contributor.authorJao, W-C
dc.contributor.authorParedes, LA
dc.contributor.authorHubbard-James, H-S
dc.contributor.authorFarrington, CD
dc.contributor.authorGordon, KD
dc.contributor.authorChojnowski, SD
dc.contributor.authorMonnier, JD
dc.contributor.authorKraus, S
dc.contributor.authorBouquin, J-BL
dc.contributor.authorAnugu, N
dc.contributor.authorBrummelaar, TT
dc.contributor.authorDavies, CL
dc.contributor.authorGardner, T
dc.contributor.authorLabdon, A
dc.contributor.authorLanthermann, C
dc.contributor.authorSetterholm, BR
dc.date.accessioned2022-10-10T09:45:31Z
dc.date.issued2022-11-01
dc.date.updated2022-10-07T17:34:33Z
dc.description.abstractWe present the visual orbits of four spectroscopic binary stars, HD 61859, HD 89822, HD 109510, and HD 191692, using long baseline interferometry with the CHARA Array. We also obtained new radial velocities from echelle spectra using the APO 3.5 m, CTIO 1.5 m, and Fairborn Observatory 2.0 m telescopes. By combining the astrometric and spectroscopic observations, we solve for the full, three-dimensional orbits and determine the stellar masses to 1-12% uncertainty and distances to 0.4-6% uncertainty. We then estimate the effective temperature and radius of each component star through Doppler tomography and spectral energy distribution analyses. We found masses of 1.4-3.5 Msun, radii of 1.5-4.7 Rsun, and temperatures of 6400-10300K. We then compare the observed stellar parameters to the predictions of the stellar evolution models, but found that only one of our systems fits well with the evolutionary models.en_GB
dc.description.sponsorshipEuropean Union Horizon 2020en_GB
dc.description.sponsorshipEuropean Research Council (ERC)en_GB
dc.description.sponsorshipScience and Technology Facilities Council (STFC)en_GB
dc.identifier.citationVol. 164 (6), article 228en_GB
dc.identifier.doi10.3847/1538-3881/ac9385
dc.identifier.grantnumber639889en_GB
dc.identifier.grantnumber101003096en_GB
dc.identifier.grantnumberST/V000721/1en_GB
dc.identifier.urihttp://hdl.handle.net/10871/131164
dc.identifierORCID: 0000-0001-6017-8773 (Kraus, Stefan)
dc.language.isoenen_GB
dc.publisherAmerican Astronomical Society / IOP Publishingen_GB
dc.rights© 2022. The Author(s). Published by the American Astronomical Society. Open access. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
dc.subjectbinaries: spectroscopicen_GB
dc.subjectbinaries: visualen_GB
dc.subjectstars: fundamental parametersen_GB
dc.titleVisual Orbits of Spectroscopic Binaries with the CHARA Array. IV. HD 61859, HD 89822, HD 109510, and HD 191692en_GB
dc.typeArticleen_GB
dc.date.available2022-10-10T09:45:31Z
dc.descriptionThis is the final version. Available on open access from the American Astronomical Society via the DOI in this recorden_GB
dc.identifier.eissn1538-4357
dc.identifier.journalAstrophysical Journalen_GB
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_GB
dcterms.dateAccepted2022-09-19
dcterms.dateSubmitted2022-09-07
rioxxterms.versionVoRen_GB
rioxxterms.licenseref.startdate2022-09-19
rioxxterms.typeJournal Article/Reviewen_GB
refterms.dateFCD2022-10-10T09:41:19Z
refterms.versionFCDAM
refterms.dateFOA2022-11-24T14:30:39Z
refterms.panelBen_GB


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© 2022. The Author(s). Published by the American Astronomical Society. Open access. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Except where otherwise noted, this item's licence is described as © 2022. The Author(s). Published by the American Astronomical Society. Open access. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.