BSN-I: the first in-depth photometric study of seven total-eclipse contact binary systems

Basit Öğe Kaydı
dc.authoridAliçavuş, Fahri / 0000-0002-1972-8400
dc.contributor.authorPoro, A.
dc.contributor.authorLi, K.
dc.contributor.authorPaki, E.
dc.contributor.authorBaudart, S.
dc.contributor.authorMichel, R.
dc.contributor.authorWang, L.
dc.contributor.authorLajus, E. Fernandez
dc.contributor.authorAliçavuş, Fahri
dc.date.accessioned2025-05-29T02:57:42Z
dc.date.available2025-05-29T02:57:42Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThis is the first in-depth study of seven total-eclipse W Ursae Majoris-type contact binary systems using photometric light curves. The ground-based observations were conducted with four observatories in the Northern and Southern hemispheres. We also used the Transiting Exoplanet Survey Satellite for four target systems. We presented the analysis of orbital period variations of six systems and found that they display parabolic variations. The material transfer rates between the stars of the systems were calculated. Also, the results show that four systems have a long-term increase, while two have a long-term decrease in their orbital periods. We analysed light curves using the PHysics Of Eclipsing BinariEs python code and the Markov chain Monte Carlo algorithm to estimate different parameters of target systems and their uncertainties. Six of the target systems required the addition of a cold or hot star-spot. We estimated absolute parameters using the empirical relationship between the orbital period and the semimajor axis (P-a). According to each component's effective temperature and mass, it was recognized that the studied systems are W subtype. We examined the dynamic stability of two targets, which were low mass ratio contact binary systems. We also showed the evolution of stars in the M-R and M-L diagrams. Finally, we showed that the hotter stars in contact systems have a temperature difference of less than approximate to 400 K compared to the Gaia Data Release 3 temperature report.
dc.description.sponsorshipNational Natural Science Foundation of China (NSFC) [12273018]; Qilu Young Researcher Project of Shandong University; NASA Explorer Program
dc.description.sponsorshipThis manuscript, including the observation, analysis, and writing processes, was provided by the BSN project.8 Work by KL was supported by the National Natural Science Foundation of China (NSFC) (No. 12273018) and by the Qilu Young Researcher Project of Shandong University. This paper is based upon observations carried out at the Observatorio Astronomico Nacional on the Sierra San Pedro Martir (OAN-SPM), Baja California, Mexico, which is operated by the Universidad Nacional Autonoma de Mexico (UNAM). We used iraf, distributed by the National Optical Observatories and operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the National Science Foundation. We used data from the European Space Agency mission Gaia. This work includes data from the TESS mission observations. The NASA Explorer Program provides funding for the TESS mission. The authors would like to express their gratitude to Dr. David Valls-Gabaud for all his help and advice.
dc.identifier.doi10.1093/mnras/staf222
dc.identifier.endpage3174
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85218409650
dc.identifier.scopusqualityQ1
dc.identifier.startpage3160
dc.identifier.urihttps://doi.org/10.1093/mnras/staf222
dc.identifier.urihttps://hdl.handle.net/20.500.12428/30148
dc.identifier.volume537
dc.identifier.wosWOS:001424399500001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherOxford Univ Press
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250529
dc.subjectbinaries: eclipsing
dc.subjectbinaries: close
dc.subjectstars: fundamental parameters
dc.subjectmethods: data analysis
dc.subjectstars: individual: (Seven Contact Binary Stars)
dc.titleBSN-I: the first in-depth photometric study of seven total-eclipse contact binary systems
dc.typeArticle

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Küçük Resim
İsim:
F. Alicavus_Makale.pdf
Boyut:
2.46 MB
Biçim:
Adobe Portable Document Format
İndir

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Fizik Bölümü Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu