Systematic KMTNet Planetary Anomaly Search. IV. Complete Sample of 2019 Prime-Field
| العنوان: | Systematic KMTNet Planetary Anomaly Search. IV. Complete Sample of 2019 Prime-Field |
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| المؤلفون: | Weicheng Zang, Hongjing Yang, Cheongho Han, Chung-Uk Lee, Andrzej Udalski, Andrew Gould, Shude Mao, Xiangyu Zhang, Wei Zhu, Michael D Albrow, Sun-Ju Chung, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C Yee, Sang-Mok Cha, Dong-Jin Kim, Hyoun-Woo Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W Pogge, Przemek Mróz, Jan Skowron, Radoslaw Poleski, Michał K Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A Rybicki, Patryk Iwanek, Marcin Wrona, Mariusz Gromadzki |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Earth and Planetary Astrophysics (astro-ph.EP), Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, QB, Astrophysics - Earth and Planetary Astrophysics |
| الوصف: | We report the complete statistical planetary sample from the prime fields ($Γ\geq 2~{\rm hr}^{-1}$) 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 14 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 $6.34 \times 10^{-4}, 4.89 \times 10^{-3}$ and $6.18 \times 10^{-4}$, 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 $q_{\rm break} = 1.7 \times 10^{-4}$ 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. Accepted by MNRAS |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1365-2966 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3018afd1b97573b22e9fc343e87143bf http://arxiv.org/abs/2204.02017 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....3018afd1b97573b22e9fc343e87143bf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652966 |
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