The Astronomical Journal (Jan 2023)
Systematic KMTNet Planetary Anomaly Search. VIII. Complete Sample of 2019 Subprime Field Planets
- Youn Kil Jung,
- Weicheng Zang,
- Hanyue Wang,
- Cheongho Han,
- Andrew Gould,
- Andrzej Udalski,
- Lead Authors,
- Michael D. Albrow,
- Sun-Ju Chung,
- Kyu-Ha Hwang,
- Yoon-Hyun Ryu,
- In-Gu Shin,
- Yossi Shvartzvald,
- Hongjing Yang,
- Jennifer C. Yee,
- Sang-Mok Cha,
- Dong-Jin Kim,
- Seung-Lee Kim,
- Chung-Uk Lee,
- Dong-Joo Lee,
- Yongseok Lee,
- Byeong-Gon Park,
- Richard W. Pogge,
- The KMTNet Collaboration,
- Michał K. Szymański,
- Jan Skowron,
- Radek Poleski,
- Igor Soszyński,
- Paweł Pietrukowicz,
- Szymon Kozłowski,
- Krzysztof Ulaczyk,
- Krzysztof A. Rybicki,
- Patryk Iwanek,
- Marcin Wrona,
- The OGLE Collaboration,
- Jonathan Green,
- Steve Hennerley,
- Andrew Marmont,
- Shude Mao,
- Dan Maoz,
- Jennie McCormick,
- Tim Natusch,
- Matthew T. Penny,
- Ian Porritt,
- Wei Zhu,
- The Tsinghua and FUN Follow-Up Teams
Affiliations
- Youn Kil Jung
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea; Korea University of Science and Technology , Korea, (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
- Weicheng Zang
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People’s Republic of China; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Hanyue Wang
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Cheongho Han
- ORCiD
- Department of Physics, Chungbuk National University , Cheongju 28644, Republic of Korea
- Andrew Gould
- Max-Planck-Institute for Astronomy , Königstuhl 17, D-69117 Heidelberg, Germany; Department of Astronomy, Ohio State University , 140 W. 18th Avenue, Columbus, OH 43210, USA
- Andrzej Udalski
- ORCiD
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, 00-478 Warszawa, Poland
- Lead Authors
- Michael D. Albrow
- ORCiD
- University of Canterbury , Department of Physics and Astronomy, Private Bag 4800, Christchurch 8020, New Zealand
- Sun-Ju Chung
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Kyu-Ha Hwang
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Yoon-Hyun Ryu
- ORCiD
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- In-Gu Shin
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Yossi Shvartzvald
- ORCiD
- Department of Particle Physics and Astrophysics, Weizmann Institute of Science , Rehovot 76100, Israel
- Hongjing Yang
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People’s Republic of China
- Jennifer C. Yee
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Sang-Mok Cha
- 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
- 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
- Korea Astronomy and Space Science Institute , Daejeon 34055, Republic of Korea
- Yongseok Lee
- 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; Korea University of Science and Technology , Korea, (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
- Richard W. Pogge
- ORCiD
- Department of Astronomy, Ohio State University , 140 W. 18th Avenue, Columbus, OH 43210, USA
- The KMTNet Collaboration
- 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
- Radek Poleski
- 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 Road, Coventry, CV4 7AL, UK
- Krzysztof A. Rybicki
- 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
- The OGLE Collaboration
- Jonathan Green
- Kumeu Observatory , Kumeu, New Zealand
- Steve Hennerley
- Kumeu Observatory , Kumeu, New Zealand
- Andrew Marmont
- Kumeu Observatory , Kumeu, New Zealand
- Shude Mao
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People’s Republic of China
- Dan Maoz
- ORCiD
- School of Physics and Astronomy, Tel-Aviv University , Tel-Aviv 6997801, Israel
- Jennie McCormick
- Farm Cove Observatory, Centre for Backyard Astrophysics , Pakuranga, Auckland, New Zealand
- Tim Natusch
- Auckland Observatory , Auckland, New Zealand; Institute for Radio Astronomy and Space Research (IRASR), AUT University , Auckland, New Zealand
- Matthew T. Penny
- ORCiD
- Department of Physics and Astronomy, Louisiana State University , Baton Rouge, LA 70803, USA
- Ian Porritt
- Turitea Observatory , Palmerston, New Zealand
- Wei Zhu
- ORCiD
- Department of Astronomy, Tsinghua University , Beijing 100084, People’s Republic of China
- The Tsinghua and FUN Follow-Up Teams
- DOI
- https://doi.org/10.3847/1538-3881/accb8f
- Journal volume & issue
-
Vol. 165,
no. 6
p. 226
Abstract
We complete the publication of all microlensing planets (and “possible planets”) identified by the uniform approach of the KMT AnomalyFinder system in the 21 KMT subprime fields during the 2019 observing season, namely, KMT-2019-BLG-0298, KMT-2019-BLG-1216, KMT-2019-BLG-2783, OGLE-2019-BLG-0249, and OGLE-2019-BLG-0679 (planets), as well as OGLE-2019-BLG-0344 and KMT-2019-BLG-0304 (possible planets). The five planets have mean log mass ratio measurements of (−2.6, −3.6, −2.5, −2.2, −2.3), median mass estimates of (1.81, 0.094, 1.16, 7.12, 3.34) M _Jup , and median distance estimates of (6.7, 2.7, 5.9, 6.4, 5.6) kpc, respectively. The main scientific interest of these planets is that they complete the AnomalyFinder sample for 2019, which has a total of 25 planets that are likely to enter the statistical sample. We find statistical consistency with the previously published 33 planets from the 2018 AnomalyFinder analysis according to an ensemble of five tests. Of the 58 planets from 2018–2019, 23 were newly discovered by AnomalyFinder. Within statistical precision, half of the planets have caustic crossings, while half do not; an equal number of detected planets result from major- and minor-image light-curve perturbations; and an equal number come from KMT prime fields versus subprime fields.
Keywords
- Exoplanet detection methods
- Gravitational microlensing
- Gravitational microlensing exoplanet detection
