TOWARD UNDERSTANDING THE NATURE OF THE YOUNG DETACHED BINARY SYSTEM HD 350731

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dc.authoridSoydugan, Faruk/0000-0002-5141-7645
dc.authoridPuskullu, Caglar/0000-0001-9213-0969
dc.authoridBilir, Selcuk/0000-0003-3510-1509
dc.contributor.authorSoydugan, Faruk
dc.contributor.authorAlicavus, F.
dc.contributor.authorBilir, S.
dc.contributor.authorSoydugan, Esin
dc.contributor.authorPuskullu, C.
dc.contributor.authorSenyuz, T.
dc.date.accessioned2025-01-27T20:25:05Z
dc.date.available2025-01-27T20:25:05Z
dc.date.issued2015
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe young binary system HD 350731 is a noteworthy laboratory for studying early-type binaries with similar components. We present here an analysis of differential multi-color photometric and spectroscopic observations of the double-lined detached system. Accurate absolute parameters were determined for the first time from a simultaneous solution of the light and radial velocity curves. HD 350731 consists of two B8V-type components with masses and radii, respectively, of M-1= 2.91 +/- 0.13 M-circle dot, M-2= 2.80 +/- 0.14 M-circle dot, R-1= 2.11 +/- 0.05 R-circle dot, and R-2= 2.07 +/- 0.05 R-circle dot. The effective temperatures were determined based on analysis of disentangled spectra of the components and were derived to be 12,000 +/- 250 and 11,830 +/- 300 K for the primary and secondary components, respectively. The measured projected rotational velocities, 69.2 +/- 1.5 km s(-1) for the primary and 70.1 +/- 1.7 km s-1 for the secondary, were found to be closer to the pseudo-synchronous velocities of the components. Comparison with evolutionary models suggests an age of 120 +/- 35 Myr. Kinematic analysis of the unevolved binary system HD 350731 revealed that it belongs to the young thin-disk population of the Galaxy.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [111T224]; Canakkale Onsekiz Mart University Astrophysics Research Center; Ulupinar Observatory together; Istanbul University Observatory Research and Application Center; National Planning Agency (DPT) of Turkey [DPT-2007K120660]; Scientific Research Projects Coordination Unit of Istanbul University [3685]; NRC (Canada) Herzberg Institute of Astrophysics
dc.description.sponsorshipThis research was supported by the Scientific and Technological Research Council of Turkey (TUBITAK, grant No. 111T224). The authors thank the anonymous referee for valuable suggestions and comments that helped us to improve the study. We thank Canakkale Onsekiz Mart University Astrophysics Research Center and Ulupinar Observatory together with Istanbul University Observatory Research and Application Center for their support and allowing the use of the T122 and IST60 telescopes. The project was supported partly by National Planning Agency (DPT) of Turkey (project DPT-2007K120660 carried out at Canakkale Onsekiz Mart University) and the Scientific Research Projects Coordination Unit of Istanbul University (project no. 3685). We gratefully acknowledge the support of the NRC (Canada) Herzberg Institute of Astrophysics. The authors especially thank Dr. D. Bohlender and Dr. D. Monin for their hospitality and allowing telescope time for observations at the Dominion Astrophysical Observatory, Canada. This research has made use of the SIMBAD and NASA Astrophysics Data System Bibliographic Services.
dc.identifier.doi10.1088/0004-6256/150/2/55
dc.identifier.issn0004-6256
dc.identifier.issn1538-3881
dc.identifier.issue2
dc.identifier.scopus2-s2.0-84938356602
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1088/0004-6256/150/2/55
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22427
dc.identifier.volume150
dc.identifier.wosWOS:000358856900016
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofAstronomical Journal
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectbinaries: eclipsing
dc.subjectstars: fundamental parameters
dc.subjectstars: individual (HD 350731)
dc.titleTOWARD UNDERSTANDING THE NATURE OF THE YOUNG DETACHED BINARY SYSTEM HD 350731
dc.typeArticle

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