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Systematic KMTNet planetary anomaly search. IV. complete sample of 2019 prime-field
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(2022) Systematic KMTNet planetary anomaly search. IV. complete sample of 2019 prime-field. Monthly Notices of the Royal Astronomical Society, 515 (1). pp. 928-939. doi:10.1093/mnras/stac1883 ISSN 1365-2966.
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Official URL: https://doi.org/10.1093/mnras/stac1883
Abstract
We report the complete statistical planetary sample from the prime fields (Γ ≥ 2 hr−1) of the 2019 Korea Microlensing Telescope Network (KMTNet) microlensing survey. We develop the optimized KMTNet AnomalyFinder algorithm and apply it to the 2019 KMTNet prime fields. We find a total of 13 homogeneously selected planets and report the analysis of three planetary events, KMT-2019-BLG-(1042,1552,2974). The planet-host mass ratios, q, for the three planetary events are 6.34 × 10−4, 4.89 × 10−3 and 6.18 × 10−4, respectively. A Bayesian analysis indicates the three planets are all cold giant planets beyond the snow line of their host stars. The 13 planets are basically uniform in log q over the range −5.0 < log q < −1.5. This result suggests that the planets below qbreak = 1.7 × 10−4 proposed by the MOA-II survey may be more common than previously believed. This work is an early component of a large project to determine the KMTNet mass-ratio function, and the whole sample of 2016–2019 KMTNet events should contain about 120 planets.
Item Type: | Journal Article | |||||||||||||||||||||
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Subjects: | Q Science > QB Astronomy | |||||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||||||||
SWORD Depositor: | Library Publications Router | |||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Gravitational lenses, Planets -- Detection , Extrasolar planets -- Detection, Satellites, Astrophysics | |||||||||||||||||||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | |||||||||||||||||||||
Publisher: | Oxford University Press (OUP) | |||||||||||||||||||||
ISSN: | 1365-2966 | |||||||||||||||||||||
Official Date: | September 2022 | |||||||||||||||||||||
Dates: |
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Volume: | 515 | |||||||||||||||||||||
Number: | 1 | |||||||||||||||||||||
Page Range: | pp. 928-939 | |||||||||||||||||||||
DOI: | 10.1093/mnras/stac1883 | |||||||||||||||||||||
Status: | Peer Reviewed | |||||||||||||||||||||
Publication Status: | Published | |||||||||||||||||||||
Reuse Statement (publisher, data, author rights): | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. | |||||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||||||||
Copyright Holders: | © 2022 The Authors | |||||||||||||||||||||
Date of first compliant deposit: | 12 August 2022 | |||||||||||||||||||||
Date of first compliant Open Access: | 12 August 2022 | |||||||||||||||||||||
RIOXX Funder/Project Grant: |
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