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Long-term transit timing monitoring and homogenous study of WASP-32
Sun LL(孙磊磊)1,2,4; Gu SH(顾盛宏)1,2; Wang XB(王晓彬)1,2; Cameron, AC3; Cao DT(曹东涛)1; Wang YB(王夷博)1; Xiang Y(项越)1,4; Hui, HK5; Kwok, CT5; Yeung, B6; Leung, KC6
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2015-01
Volume15Issue:1Pages:117-126
DOI10.1088/1674-4527/15/1/011
Contribution Rank第1完成单位
Indexed BySCI
KeywordTechniques: Photometric Transiting Exoplanetary System Individual: Wasp-32
Abstract

We report new photometric observations of the transiting exoplanetary system WASP-32 made by using CCD cameras at Yunnan Observatories and Ho Koon Nature Education cum Astronomical Centre, China from 2010 to 2012. Following our usual procedure, the observed data are corrected for systematic errors according to the coarse decorrelation and SYSREM algorithms so as to enhance the signal of the transit events. Combined with radial velocity data presented in the literature, our newly observed data and earlier photometric data in the literature are simultaneously analyzed to derive the physical parameters describing the system by employing the Markov chain Monte Carlo technique. The derived parameters are consistent with the result published in the original paper about WASP-32b, but the uncertainties of the new parameters are smaller than those in the original paper. Moreover, our modeling result supports a circular orbit for WASP-32b. Through the analysis of all available mid-transit times, we have refined the orbital period of WASP-32b; no evident transit timing variation is found in these transit events.

Funding ProjectNational Natural Science Foundation of China[10873031] ; Chinese Academy of Sciences[KJCXZ-YW-T24]
Funding OrganizationNational Natural Science Foundation of China[10873031] ; Chinese Academy of Sciences[KJCXZ-YW-T24]
Language英语
Subject Area天文学 ; 天体物理学 ; 实测天体物理学 ; 恒星与银河系 ; 恒星天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
Archive Date2015-04-07
WOS IDWOS:000347962000011
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordLIGHT CURVES ; EXTRASOLAR PLANETS ; Y-2 ISOCHRONES ; GIANT PLANET ; PARAMETERS ; STELLAR ; SYSTEM ; RADII ; STAR ; MASS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6813
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 650011, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
3.School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK
4.University of Chinese Academy of Sciences, Beijing 100049, China
5.Ho Koon Nature Education cum Astronomical Centre, Sik Sik Yuen, Hong Kong, China
6.Hong Kong Astronomical Society, Hong Kong, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Sun LL,Gu SH,Wang XB,et al. Long-term transit timing monitoring and homogenous study of WASP-32[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(1):117-126.
APA Sun LL.,Gu SH.,Wang XB.,Cameron, AC.,Cao DT.,...&Leung, KC.(2015).Long-term transit timing monitoring and homogenous study of WASP-32.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(1),117-126.
MLA Sun LL,et al."Long-term transit timing monitoring and homogenous study of WASP-32".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.1(2015):117-126.
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