The Astronomical Journal (Jan 2024)
Systematic KMTNet Planetary Anomaly Search. XII. Complete Sample of 2017 Subprime Field Planets
- Yuqian Gui,
- Weicheng Zang,
- Ruocheng Zhai,
- Yoon-Hyun Ryu,
- Andrzej Udalski,
- Hongjing Yang,
- Cheongho Han,
- Shude Mao,
- Leading Authors,
- Michael D. Albrow,
- Sun-Ju Chung,
- Andrew Gould,
- Kyu-Ha Hwang,
- Youn Kil Jung,
- In-Gu Shin,
- Yossi Shvartzvald,
- Jennifer C. Yee,
- Sang-Mok Cha,
- Dong-Jin Kim,
- Hyoun-Woo Kim,
- Seung-Lee Kim,
- Chung-Uk Lee,
- Dong-Joo Lee,
- Yongseok Lee,
- Byeong-Gon Park,
- Richard W. Pogge,
- The KMTNet Collaboration,
- Przemek Mróz,
- Michał K. Szymański,
- Jan Skowron,
- Radosław Poleski,
- Igor Soszyński,
- Paweł Pietrukowicz,
- Szymon Kozłowski,
- Krzysztof Ulaczyk,
- Krzysztof A. Rybicki,
- Patryk Iwanek,
- Marcin Wrona,
- Mariusz Gromadzki,
- The OGLE Collaboration,
- Hanyue Wang,
- Jiyuan Zhang,
- Renkun Kuang,
- Qiyue Qian,
- Wei Zhu,
- The MAP Collaboration
Affiliations
- Yuqian Gui
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Weicheng Zang
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA
- Ruocheng Zhai
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Yoon-Hyun Ryu
- ORCiD
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
- Andrzej Udalski
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Hongjing Yang
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Cheongho Han
- ORCiD
- Department of Physics, Chungbuk National University , Cheongju 28644, Republic of Korea
- Shude Mao
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]; National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China
- Leading Authors
- Michael D. Albrow
- ORCiD
- University of Canterbury , School of Physical and Chemical Sciences, Private Bag 4800, Christchurch 8020, New Zealand
- Sun-Ju Chung
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Andrew Gould
- Max-Planck-Institute for Astronomy , Königstuhl 17, 69117 Heidelberg, Germany; Department of Astronomy, Ohio State University , 140 W. 18th Ave., Columbus, OH 43210, USA
- Kyu-Ha Hwang
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Youn Kil Jung
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea; National University of Science and Technology (UST) , Daejeon 34113, Republic of Korea
- In-Gu Shin
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA
- Yossi Shvartzvald
- ORCiD
- Department of Particle Physics and Astrophysics, Weizmann Institute of Science , Rehovot 7610001, Israel
- Jennifer C. Yee
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA
- Sang-Mok Cha
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea; School of Space Research, Kyung Hee University , Yongin, Kyeonggi 17104, Republic of Korea
- Dong-Jin Kim
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Hyoun-Woo Kim
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Seung-Lee Kim
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Chung-Uk Lee
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Dong-Joo Lee
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Yongseok Lee
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea; School of Space Research, Kyung Hee University , Yongin, Kyeonggi 17104, Republic of Korea
- Byeong-Gon Park
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Richard W. Pogge
- ORCiD
- Department of Astronomy, Ohio State University , 140 West 18th Ave., Columbus, OH 43210, USA; Center for Cosmology and AstroParticle Physics, Ohio State University , 191 West Woodruff Ave., Columbus, OH 43210, USA
- The KMTNet Collaboration
- Przemek Mróz
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Michał K. Szymański
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Jan Skowron
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Radosław Poleski
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Igor Soszyński
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Paweł Pietrukowicz
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Szymon Kozłowski
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Krzysztof Ulaczyk
- ORCiD
- Department of Physics, University of Warwick , Gibbet Hill Rd., Coventry CV4 7AL, UK
- Krzysztof A. Rybicki
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland; Department of Particle Physics and Astrophysics, Weizmann Institute of Science , Rehovot 76100, Israel
- Patryk Iwanek
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Marcin Wrona
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Mariusz Gromadzki
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- The OGLE Collaboration
- Hanyue Wang
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA
- Jiyuan Zhang
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Renkun Kuang
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]; Department of Engineering Physics, Tsinghua University , Beijing 100084, People's Republic of China
- Qiyue Qian
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- Wei Zhu
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People's Republic of China ; [email protected]
- The MAP Collaboration
- DOI
- https://doi.org/10.3847/1538-3881/ad4ce5
- Journal volume & issue
-
Vol. 168,
no. 2
p. 49
Abstract
We report the analysis of four unambiguous planets and one possible planet from the subprime fields (Γ ≤ 1 hr ^−1 ) of the 2017 Korea Microlensing Telescope Network (KMTNet) microlensing survey, to complete the KMTNet AnomalyFinder planetary sample for the 2017 subprime fields. They are KMT-2017-BLG-0849, KMT-2017-BLG-1057, OGLE-2017-BLG-0364, and KMT-2017-BLG-2331 (unambiguous), as well as KMT-2017-BLG-0958 (possible). For the four unambiguous planets, the mean planet–host mass ratios, q , are (1.0, 1.2, 4.6, 13) × 10 ^−4 , the median planetary masses are (6.4, 24, 76, 171) M _⊕ , and the median host masses are (0.19, 0.57, 0.49, 0.40) M _⊙ , respectively, found from a Bayesian analysis. We have completed the Anomaly Finder planetary sample from the first 4 yr of KMTNet data (2016–2019), with 112 unambiguous planets in total, which nearly tripled the microlensing planetary sample. The “sub-Saturn desert” ( $\mathrm{log}q=\left[-3.6,-3.0\right]$ ) found in the 2018 and 2019 KMTNet samples is confirmed by the 2016 and 2017 KMTNet samples.
Keywords
