NAOC Open IR
KMT-2018-BLG-0029LB: A VERY LOW MASS-RATIO Spitzer MICROLENS PLANET
Gould, Andrew1,2; Ryu, Yoon-Hyun3; Novati, Sebastiano Calchi4; Zang, Weicheng5,6; Albrow, Michael D.7; Chung, Sun-Ju3,8; Han, Cheongho9; Hwang, Kyu-Ha3; Jung, Youn Kil3; Shin, In-Gu3; Shvartzvald, Yossi4; Yee, Jennifer C.10; Cha, Sang-Mok3,11; Kim, Dong-Jin3; Kim, Hyoun-Woo3; Kim, Seung-Lee3,8; Lee, Chung-Uk3,8; Lee, Dong-Joo3; Lee, Yongseok3,11; Park, Byeong-Gon3,8; Pogge, Richard W.2; Beichman, Charles12; Bryden, Geoff4; Carey, Sean13; Gaud, B. Scott2; Henderson, Calen B.4; Zhu, Wei14; Fouque, Pascal15,16; Penny, Matthew T.2; Petric, Andreea15; Burdullis, Todd15; Mao, Shude6,17,18
2020-02-01
Source PublicationJOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY
ISSN1225-4614
Volume53Issue:1Pages:9-26
AbstractAt q = 1.81 +/- 0.20 x 10 KMT-2018-BLG-0029Lb has the lowest planet-host mass ratio q of any microlensing planet to date by more than a factor of two. Hence, it is the first planet that probes below the apparent "pile-up" at q = 5-10 x 10(-5) The event was observed by Spitzer, yielding a microlens-parallax pi(E) measurement. Combined with a measurement of the Einstein radius theta(E) from finite-source effects during the caustic crossings, these measurements imply masses of the host M-host = 1.14(-0.12)(+0.10) M-circle dot and planet M-planet = 7.59(-0.69)(+0.75) M-circle plus system distance D-L = 3.38(-0.26)(+0.22) kpc and projected separation a(perpendicular to) = 4.27(-0.23)(+0.21) AU. The blended light, which is substantially brighter than the microlensed source, is plausibly due to the lens and could be observed at high resolution immediately.
Keywordgravitational lensing: micro planetary systems
Funding OrganizationUS NSF ; US NSF ; JPL grant ; JPL grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Foundation of China ; National Science Foundation of China ; NASA ; NASA ; Thomas Jefferson Chair for Discovery and Space Exploration ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; US NSF ; US NSF ; JPL grant ; JPL grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Foundation of China ; National Science Foundation of China ; NASA ; NASA ; Thomas Jefferson Chair for Discovery and Space Exploration ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; US NSF ; US NSF ; JPL grant ; JPL grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Foundation of China ; National Science Foundation of China ; NASA ; NASA ; Thomas Jefferson Chair for Discovery and Space Exploration ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; US NSF ; US NSF ; JPL grant ; JPL grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Foundation of China ; National Science Foundation of China ; NASA ; NASA ; Thomas Jefferson Chair for Discovery and Space Exploration ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance
DOI10.5303/JKAS.2020.53.1.9
WOS KeywordGRAVITATIONAL LENSING EXPERIMENT ; JUPITER/SATURN ANALOG ; PHOTOMETRY ; SYSTEMS ; EVENTS ; STARS
Language英语
Funding ProjectUS NSF[AST-1516842] ; JPL grant[1500811] ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant[321035] ; National Research Foundation of Korea[2017R1A4A1015178] ; National Science Foundation of China[11821303] ; National Science Foundation of China[11761131004] ; NASA[NNX14AF63G] ; NASA[NNG16PJ32C] ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance
Funding OrganizationUS NSF ; US NSF ; JPL grant ; JPL grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Foundation of China ; National Science Foundation of China ; NASA ; NASA ; Thomas Jefferson Chair for Discovery and Space Exploration ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; US NSF ; US NSF ; JPL grant ; JPL grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Foundation of China ; National Science Foundation of China ; NASA ; NASA ; Thomas Jefferson Chair for Discovery and Space Exploration ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; US NSF ; US NSF ; JPL grant ; JPL grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Foundation of China ; National Science Foundation of China ; NASA ; NASA ; Thomas Jefferson Chair for Discovery and Space Exploration ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; US NSF ; US NSF ; JPL grant ; JPL grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; European Research Council under the European Unions Seventh Framework Programme (FP 7) ERC Grant ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Foundation of China ; National Science Foundation of China ; NASA ; NASA ; Thomas Jefferson Chair for Discovery and Space Exploration ; Thomas Jefferson Chair for Discovery and Space Exploration ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000517825400002
PublisherKOREAN ASTRONOMICAL SOCIETY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/54285
Collection中国科学院国家天文台
Corresponding AuthorGould, Andrew
Affiliation1.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany
2.Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA
3.Korea Astron & Space Sci Inst, Daejon 34055, South Korea
4.CALTECH, IPAC, Mail Code 100-22,1200 E Calif Blvd, Pasadena, CA 91125 USA
5.Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China
6.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China
7.Univ Canterbury, Dept Phys & Astron, Private Bag 4800, Christchurch 8020, New Zealand
8.Univ Sci & Technol Korea UST Gajeong Ro, Daejeon 34113, South Korea
9.Chungbuk Natl Univ, Dept Phys, Cheongju 28644, South Korea
10.Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
11.Kyung Hee Univ, Sch Space Res, Yongin 17104, Kyeonggi, South Korea
12.CALTECH, NASA Exoplanet Sci Inst, Pasadena, CA 91125 USA
13.CALTECH, Spitzer Sci Ctr, MS 220-6, Pasadena, CA 91125 USA
14.Univ Toronto, Canadian Inst Theoret Astrophys, 60 St George St, Toronto, ON M5S 3H8, Canada
15.CFHT Corp, 65-1238 Mamalahoa Hwy, Kamuela, HI 96743 USA
16.Univ Toulouse, IRAP, UPS OMP, Toulouse, France
17.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China
18.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Gould, Andrew,Ryu, Yoon-Hyun,Novati, Sebastiano Calchi,et al. KMT-2018-BLG-0029LB: A VERY LOW MASS-RATIO Spitzer MICROLENS PLANET[J]. JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY,2020,53(1):9-26.
APA Gould, Andrew.,Ryu, Yoon-Hyun.,Novati, Sebastiano Calchi.,Zang, Weicheng.,Albrow, Michael D..,...&Mao, Shude.(2020).KMT-2018-BLG-0029LB: A VERY LOW MASS-RATIO Spitzer MICROLENS PLANET.JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY,53(1),9-26.
MLA Gould, Andrew,et al."KMT-2018-BLG-0029LB: A VERY LOW MASS-RATIO Spitzer MICROLENS PLANET".JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY 53.1(2020):9-26.
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