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Kepler-411: a four-planet system with an active host star
Sun LL(孙磊磊)1,2,3; Ioannidis, P.4; Gu SH(顾盛宏)1,2,3; Schmitt, J. H. M. M.4; Wang XB(王晓彬)1,2,3; Kouwenhoven, M. B. N.5
Source PublicationASTRONOMY & ASTROPHYSICS
2019-04-02
Volume624Pages:11
DOI10.1051/0004-6361/201834275
Contribution Rank第1完成单位
Indexed BySCI ; EI
Keywordplanets and satellites: dynamical evolution and stability stars: activity planetary systems starspots
Abstract

We present a detailed characterization of the Kepler-411 system (KOI 1781). This system was previously known to host two transiting planets: one with a period of 3 days (R = 2.4 R-circle plus; Kepler-411b) and one with a period of 7.8 days (R = 4.4 R-circle plus; Kepler-411c), as well as a transiting planetary candidate with a 58-day period (R = 3.3 R-circle plus; KOI 1781.03) from Kepler photometry. Here, we combine Kepler photometry data and new transit timing variation (TTV) measurements from all the Kepler quarters with previous adaptive-optics imaging results, and dynamical simulations, in order to constrain the properties of the Kepler-411 system. From our analysis, we obtain masses of 25.6 +/- 2.6 M-circle plus for Kepler-411b and 26.4 +/- 5.9 M-circle plus for Kepler-411c, and we confirm the planetary nature of KOI 1781.03 with a mass of 15.2 +/- 5.1 M-circle plus , hence the name Kepler-411d. Furthermore, by assuming near-coplanarity of the system (mutual inclination below 30 degrees), we discover a nontransiting planet, Kepler-411e, with a mass of 10.8 +/- 1.1 M-circle plus on a 31.5-day orbit, which has a strong dynamical interaction with Kepler-411d. With densities of 1.71 +/- 0.39 g cm(-3) and 2.32 +/- 0.83 g cm(-3), both Kepler-411c and Kepler-411d belong to the group of planets with a massive core and a significant fraction of volatiles. Although Kepler-411b has a sub-Neptune size, it belongs to the group of rocky planets.

Funding ProjectNASA ; National Natural Science Foundation of China[11010237] ; National Natural Science Foundation of China[11050110414] ; National Natural Science Foundation of China[11173004] ; National Natural Science Foundation of China[11573004] ; National Natural Science Foundation of China[U1531121] ; National Natural Science Foundation of China[10873031] ; National Natural Science Foundation of China[11473066] ; China Scholarship Council (CSC) ; Deutscher Akademischer Austausch Dienst (DAAD) ; Sino-German Center for Research Promotion[GZ1419] ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU)[RDF-16-01-16]
Funding OrganizationNASA ; National Natural Science Foundation of China[11010237, 11050110414, 11173004, 11573004, U1531121, 10873031, 11473066] ; China Scholarship Council (CSC) ; Deutscher Akademischer Austausch Dienst (DAAD) ; Sino-German Center for Research Promotion[GZ1419] ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU)[RDF-16-01-16]
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星天文学 ; 恒星形成与演化
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherEDP SCIENCES S A
Publication Place17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
ISSN1432-0746
URL查看原文
WOS IDWOS:000462979200001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordTRANSIT TIMING VARIATIONS ; DIFFERENTIAL EVOLUTION ; PLANETARY PARAMETERS ; MASS ; STELLAR ; ALGORITHM ; STABILITY ; ORBITS ; RADII ; EARTH
EI Accession Number20191506749768
EI KeywordsOrbits
EI Classification Number655.2Satellites - 657.2Extraterrestrial Physics and Stellar Phenomena - 741.1Light/Optics - 941.4Optical Variables Measurements
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/19661
Collection系外行星研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorSun LL(孙磊磊)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, PR China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, PR China
3.University of Chinese Academy of Sciences, Beijing 100049, PR China
4.Hamburger Sternwarte, Universität Hamburg, Gojenbergsweg 112, 21029 Hamburg, Germany
5.Department of Mathematical Sciences, Xian Jiaotong-Liverpool University (XJTLU), 111 Renai Road, Suzhou Dushu Lake Science and Education Innovation District, Suzhou Industrial Park, Suzhou 215123, PR China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Sun LL,Ioannidis, P.,Gu SH,et al. Kepler-411: a four-planet system with an active host star[J]. ASTRONOMY & ASTROPHYSICS,2019,624:11.
APA Sun LL,Ioannidis, P.,Gu SH,Schmitt, J. H. M. M.,Wang XB,&Kouwenhoven, M. B. N..(2019).Kepler-411: a four-planet system with an active host star.ASTRONOMY & ASTROPHYSICS,624,11.
MLA Sun LL,et al."Kepler-411: a four-planet system with an active host star".ASTRONOMY & ASTROPHYSICS 624(2019):11.
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