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Systematic KMTNet planetary anomaly search. VIII. Complete sample of 2019 subprime field planets
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The Tsinghua and FUN Follow-Up Teams, The OGLE Collaboration, The KMTNet Collaboration (Including:
). (2023) Systematic KMTNet planetary anomaly search. VIII. Complete sample of 2019 subprime field planets. The Astronomical Journal, 165 (6). 226. doi:10.3847/1538-3881/accb8f ISSN 1538-3881.
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Official URL: https://doi.org/10.3847/1538-3881/accb8f
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.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
SWORD Depositor: | Library Publications Router | ||||||
Journal or Publication Title: | The Astronomical Journal | ||||||
Publisher: | The American Astronomical Society | ||||||
ISSN: | 1538-3881 | ||||||
Official Date: | 4 May 2023 | ||||||
Dates: |
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Volume: | 165 | ||||||
Number: | 6 | ||||||
Article Number: | 226 | ||||||
DOI: | 10.3847/1538-3881/accb8f | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 31 May 2023 | ||||||
Date of first compliant Open Access: | 31 May 2023 | ||||||
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