Systematic KMTNet Planetary Anomaly Search. XII. Complete Sample of 2017 Subprime Field Planets

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-...

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Published in:The Astronomical journal 2024-08, Vol.168 (2), p.49
Main Authors: Gui, Yuqian, Zang, Weicheng, Zhai, Ruocheng, Ryu, Yoon-Hyun, Udalski, Andrzej, Yang, Hongjing, Han, Cheongho, Mao, Shude, Albrow, Michael D., Chung, Sun-Ju, Gould, Andrew, Hwang, Kyu-Ha, Jung, Youn Kil, Shin, In-Gu, Shvartzvald, Yossi, Yee, Jennifer C., Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Chung-Uk, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Mróz, Przemek, Szymański, Michał K., Skowron, Jan, Poleski, Radosław, Soszyński, Igor, Pietrukowicz, Paweł, Kozłowski, Szymon, Ulaczyk, Krzysztof, Rybicki, Krzysztof A., Iwanek, Patryk, Wrona, Marcin, Gromadzki, Mariusz, Wang, Hanyue, Zhang, Jiyuan, Kuang, Renkun, Qian, Qiyue, Zhu, Wei
Format: Article
Language:English
Subjects:
Bayesian analysis
Gravitational microlensing
Gravitational microlensing exoplanet detection
Mass ratios
Microlenses
Planets
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container_issue 2
container_start_page 49
container_title The Astronomical journal
container_volume 168
creator Gui, Yuqian
Zang, Weicheng
Zhai, Ruocheng
Ryu, Yoon-Hyun
Udalski, Andrzej
Yang, Hongjing
Han, Cheongho
Mao, Shude
Albrow, Michael D.
Chung, Sun-Ju
Gould, Andrew
Hwang, Kyu-Ha
Jung, Youn Kil
Shin, In-Gu
Shvartzvald, Yossi
Yee, Jennifer C.
Cha, Sang-Mok
Kim, Dong-Jin
Kim, Hyoun-Woo
Kim, Seung-Lee
Lee, Chung-Uk
Lee, Dong-Joo
Lee, Yongseok
Park, Byeong-Gon
Pogge, Richard W.
Mróz, Przemek
Szymański, Michał K.
Skowron, Jan
Poleski, Radosław
Soszyński, Igor
Pietrukowicz, Paweł
Kozłowski, Szymon
Ulaczyk, Krzysztof
Rybicki, Krzysztof A.
Iwanek, Patryk
Wrona, Marcin
Gromadzki, Mariusz
Wang, Hanyue
Zhang, Jiyuan
Kuang, Renkun
Qian, Qiyue
Zhu, Wei
description 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” ( log q = − 3.6 , − 3.0 ) found in the 2018 and 2019 KMTNet samples is confirmed by the 2016 and 2017 KMTNet samples.
doi_str_mv 10.3847/1538-3881/ad4ce5
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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. 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Complete Sample of 2017 Subprime Field Planets</title><author>Gui, Yuqian ; Zang, Weicheng ; Zhai, Ruocheng ; Ryu, Yoon-Hyun ; Udalski, Andrzej ; Yang, Hongjing ; Han, Cheongho ; Mao, Shude ; Albrow, Michael D. ; Chung, Sun-Ju ; Gould, Andrew ; Hwang, Kyu-Ha ; Jung, Youn Kil ; Shin, In-Gu ; Shvartzvald, Yossi ; Yee, Jennifer C. ; Cha, Sang-Mok ; Kim, Dong-Jin ; Kim, Hyoun-Woo ; Kim, Seung-Lee ; Lee, Chung-Uk ; Lee, Dong-Joo ; Lee, Yongseok ; Park, Byeong-Gon ; Pogge, Richard W. ; Mróz, Przemek ; Szymański, Michał K. ; Skowron, Jan ; Poleski, Radosław ; Soszyński, Igor ; Pietrukowicz, Paweł ; Kozłowski, Szymon ; Ulaczyk, Krzysztof ; Rybicki, Krzysztof A. ; Iwanek, Patryk ; Wrona, Marcin ; Gromadzki, Mariusz ; Wang, Hanyue ; Zhang, Jiyuan ; Kuang, Renkun ; Qian, Qiyue ; Zhu, Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c285t-e013712155be021a977e1efe4a696fee447fc83dce7aba64a12f71f6aea1dae3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Bayesian analysis</topic><topic>Gravitational microlensing</topic><topic>Gravitational microlensing exoplanet detection</topic><topic>Mass ratios</topic><topic>Microlenses</topic><topic>Planets</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gui, Yuqian</creatorcontrib><creatorcontrib>Zang, Weicheng</creatorcontrib><creatorcontrib>Zhai, Ruocheng</creatorcontrib><creatorcontrib>Ryu, Yoon-Hyun</creatorcontrib><creatorcontrib>Udalski, Andrzej</creatorcontrib><creatorcontrib>Yang, Hongjing</creatorcontrib><creatorcontrib>Han, Cheongho</creatorcontrib><creatorcontrib>Mao, Shude</creatorcontrib><creatorcontrib>Albrow, Michael D.</creatorcontrib><creatorcontrib>Chung, Sun-Ju</creatorcontrib><creatorcontrib>Gould, Andrew</creatorcontrib><creatorcontrib>Hwang, Kyu-Ha</creatorcontrib><creatorcontrib>Jung, Youn Kil</creatorcontrib><creatorcontrib>Shin, In-Gu</creatorcontrib><creatorcontrib>Shvartzvald, Yossi</creatorcontrib><creatorcontrib>Yee, Jennifer C.</creatorcontrib><creatorcontrib>Cha, Sang-Mok</creatorcontrib><creatorcontrib>Kim, Dong-Jin</creatorcontrib><creatorcontrib>Kim, Hyoun-Woo</creatorcontrib><creatorcontrib>Kim, Seung-Lee</creatorcontrib><creatorcontrib>Lee, Chung-Uk</creatorcontrib><creatorcontrib>Lee, Dong-Joo</creatorcontrib><creatorcontrib>Lee, Yongseok</creatorcontrib><creatorcontrib>Park, Byeong-Gon</creatorcontrib><creatorcontrib>Pogge, Richard W.</creatorcontrib><creatorcontrib>Mróz, Przemek</creatorcontrib><creatorcontrib>Szymański, Michał K.</creatorcontrib><creatorcontrib>Skowron, Jan</creatorcontrib><creatorcontrib>Poleski, Radosław</creatorcontrib><creatorcontrib>Soszyński, Igor</creatorcontrib><creatorcontrib>Pietrukowicz, Paweł</creatorcontrib><creatorcontrib>Kozłowski, Szymon</creatorcontrib><creatorcontrib>Ulaczyk, Krzysztof</creatorcontrib><creatorcontrib>Rybicki, Krzysztof A.</creatorcontrib><creatorcontrib>Iwanek, Patryk</creatorcontrib><creatorcontrib>Wrona, Marcin</creatorcontrib><creatorcontrib>Gromadzki, Mariusz</creatorcontrib><creatorcontrib>Wang, Hanyue</creatorcontrib><creatorcontrib>Zhang, Jiyuan</creatorcontrib><creatorcontrib>Kuang, Renkun</creatorcontrib><creatorcontrib>Qian, Qiyue</creatorcontrib><creatorcontrib>Zhu, Wei</creatorcontrib><creatorcontrib>Leading Authors</creatorcontrib><creatorcontrib>The KMTNet Collaboration</creatorcontrib><creatorcontrib>The OGLE Collaboration</creatorcontrib><creatorcontrib>The MAP Collaboration</creatorcontrib><collection>IOP Publishing Free Content</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Meteorological &amp; 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XII. Complete Sample of 2017 Subprime Field Planets</atitle><jtitle>The Astronomical journal</jtitle><stitle>AJ</stitle><addtitle>Astron. J</addtitle><date>2024-08-01</date><risdate>2024</risdate><volume>168</volume><issue>2</issue><spage>49</spage><pages>49-</pages><issn>0004-6256</issn><eissn>1538-3881</eissn><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” ( log q = − 3.6 , − 3.0 ) found in the 2018 and 2019 KMTNet samples is confirmed by the 2016 and 2017 KMTNet samples.</abstract><cop>Madison</cop><pub>The American Astronomical Society</pub><doi>10.3847/1538-3881/ad4ce5</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0001-8263-1006</orcidid><orcidid>https://orcid.org/0000-0001-7016-1692</orcidid><orcidid>https://orcid.org/0000-0002-2641-9964</orcidid><orcidid>https://orcid.org/0000-0001-6000-3463</orcidid><orcidid>https://orcid.org/0000-0001-6364-408X</orcidid><orcidid>https://orcid.org/0000-0003-1525-5041</orcidid><orcidid>https://orcid.org/0000-0003-3316-4012</orcidid><orcidid>https://orcid.org/0000-0001-9481-7123</orcidid><orcidid>https://orcid.org/0000-0002-2339-5899</orcidid><orcidid>https://orcid.org/0009-0004-1650-3494</orcidid><orcidid>https://orcid.org/0000-0001-6285-4528</orcidid><orcidid>https://orcid.org/0000-0002-3051-274X</orcidid><orcidid>https://orcid.org/0000-0003-0626-8465</orcidid><orcidid>https://orcid.org/0000-0001-8317-2788</orcidid><orcidid>https://orcid.org/0000-0003-0562-5643</orcidid><orcidid>https://orcid.org/0000-0001-7594-8072</orcidid><orcidid>https://orcid.org/0000-0002-7777-0842</orcidid><orcidid>https://orcid.org/0000-0002-9241-4117</orcidid><orcidid>https://orcid.org/0000-0003-4084-880X</orcidid><orcidid>https://orcid.org/0000-0002-4355-9838</orcidid><orcidid>https://orcid.org/0000-0002-0548-8995</orcidid><orcidid>https://orcid.org/0000-0003-2337-0533</orcidid><orcidid>https://orcid.org/0000-0001-9823-2907</orcidid><orcidid>https://orcid.org/0000-0001-5207-5619</orcidid><orcidid>https://orcid.org/0000-0003-1435-3053</orcidid><orcidid>https://orcid.org/0000-0002-9326-9329</orcidid><orcidid>https://orcid.org/0000-0003-0043-3925</orcidid><orcidid>https://orcid.org/0000-0002-7511-2950</orcidid><orcidid>https://orcid.org/0000-0002-1650-1518</orcidid><orcidid>https://orcid.org/0000-0002-0314-6000</orcidid><orcidid>https://orcid.org/0009-0000-5737-0908</orcidid><orcidid>https://orcid.org/0000-0002-6212-7221</orcidid><orcidid>https://orcid.org/0009-0007-9365-9806</orcidid><orcidid>https://orcid.org/0000-0002-9245-6368</orcidid><orcidid>https://orcid.org/0000-0003-4027-4711</orcidid><orcidid>https://orcid.org/0000-0002-6982-7722</orcidid><orcidid>https://orcid.org/0000-0002-2335-1730</orcidid><oa>free_for_read</oa></addata></record>
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subjects Bayesian analysis
Gravitational microlensing
Gravitational microlensing exoplanet detection
Mass ratios
Microlenses
Planets
title Systematic KMTNet Planetary Anomaly Search. XII. Complete Sample of 2017 Subprime Field Planets
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