NAOC Open IR
KIC 12268220: A delta Scuti Pulsating Star and an Active Protohelium White Dwarf in an Eclipsing Binary System
Cui, Kaiming1,2; Guo, Zhao3,4; Gao, Qing1; Ren, Juanjuan1; Zhang, Junbo1; Zhou, Yutao5,6; Liu, Jifeng1,2,7
2020-08-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume898Issue:2Pages:11
AbstractWe present a photometric, spectroscopic, asteroseismic, and evolutionary analysis of the Algol-type eclipsing binary KIC 12268220. We find the O'Connell effect and anticorrelated eclipse timing variations in the Kepler light curve, revealing the presence of large starspots. Radial velocities and atmospheric parameters are obtained from ground-based spectroscopic observations. Combined with the radial velocity measurements and Gaia-derived total luminosity, our light-curve modeling yields the solution of the physical parameters for both the primary and secondary components. We find 14 independent frequencies arising from the delta Scuti primary, and the observed frequencies agree with the frequency range of unstable modes from nonadiabatic calculations. Based on the conclusion from previous literature, we run a grid of models to study the evolution process of our system. The evolutionary tracks of our model suggest that the low-mass (similar to 0.23 M-circle dot) evolved secondary shows a similar evolutionary state to the R CMa-type system, which might evolve to an EL CVn system.
Funding OrganizationChinese Academy of Sciences ; Chinese Academy of Sciences ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA Science Mission Directorate ; NASA ; NASA ; NASA Office of Space Science ; NASA Office of Space Science ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA Science Mission Directorate ; NASA ; NASA ; NASA Office of Space Science ; NASA Office of Space Science ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA Science Mission Directorate ; NASA ; NASA ; NASA Office of Space Science ; NASA Office of Space Science ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA Science Mission Directorate ; NASA ; NASA ; NASA Office of Space Science ; NASA Office of Space Science
DOI10.3847/1538-4357/ab9b85
WOS KeywordSTELLAR SURFACE-STRUCTURE ; LARGE-MAGELLANIC-CLOUD ; ABSOLUTE DIMENSIONS ; LIGHT-CURVE ; KEPLER ; PHOTOMETRY ; EVOLUTION ; STARSPOTS ; ACCURATE ; DISTANCE
Language英语
Funding ProjectChinese Academy of Sciences[XDB09000000] ; National Science Foundation of China (NSFC)[11988101] ; National Science Foundation of China (NSFC)[11425313] ; National Science Foundation of China (NSFC)[11933004] ; National Science Foundation of China (NSFC)[11903047] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA[NAS5-26555] ; NASA Office of Space Science[NNX09AF08G]
Funding OrganizationChinese Academy of Sciences ; Chinese Academy of Sciences ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA Science Mission Directorate ; NASA ; NASA ; NASA Office of Space Science ; NASA Office of Space Science ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA Science Mission Directorate ; NASA ; NASA ; NASA Office of Space Science ; NASA Office of Space Science ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA Science Mission Directorate ; NASA ; NASA ; NASA Office of Space Science ; NASA Office of Space Science ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; NASA Science Mission Directorate ; NASA Science Mission Directorate ; NASA ; NASA ; NASA Office of Space Science ; NASA Office of Space Science
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000557459800001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/82412
Collection中国科学院国家天文台
Corresponding AuthorCui, Kaiming
Affiliation1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Opt Astron, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
3.Penn State Univ, Dept Astron & Astrophys, Ctr Exoplanets & Habitable Worlds, 525 Davey Lab, University Pk, PA 16802 USA
4.Polish Acad Sci, Copernicus Astron Ctr, Bartycka 18, PL-00716 Warsaw, Poland
5.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
6.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
7.Wuhan Univ, WHU NAOC Joint Ctr Astron, Wuhan 430072, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Cui, Kaiming,Guo, Zhao,Gao, Qing,et al. KIC 12268220: A delta Scuti Pulsating Star and an Active Protohelium White Dwarf in an Eclipsing Binary System[J]. ASTROPHYSICAL JOURNAL,2020,898(2):11.
APA Cui, Kaiming.,Guo, Zhao.,Gao, Qing.,Ren, Juanjuan.,Zhang, Junbo.,...&Liu, Jifeng.(2020).KIC 12268220: A delta Scuti Pulsating Star and an Active Protohelium White Dwarf in an Eclipsing Binary System.ASTROPHYSICAL JOURNAL,898(2),11.
MLA Cui, Kaiming,et al."KIC 12268220: A delta Scuti Pulsating Star and an Active Protohelium White Dwarf in an Eclipsing Binary System".ASTROPHYSICAL JOURNAL 898.2(2020):11.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cui, Kaiming]'s Articles
[Guo, Zhao]'s Articles
[Gao, Qing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cui, Kaiming]'s Articles
[Guo, Zhao]'s Articles
[Gao, Qing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cui, Kaiming]'s Articles
[Guo, Zhao]'s Articles
[Gao, Qing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.