Systematic KMTNet planetary anomaly search V. Complete sample of 2018 prime-field

被引：38

作者：

Gould, Andrew ^{[1
,2
]}

Han, Cheongho ^{[3
]}

Zang, Weicheng ^{[4
]}

Yang, Hongjing ^{[4
]}

Hwang, Kyu-Ha ^{[5
]}

Udalski, Andrzej ^{[6
]}

Bond, Ian A. ^{[7
]}

Albrow, Michael D. ^{[8
]}

Chung, Sun-Ju ^{[5
]}

Jung, Youn Kil ^{[5
]}

Ryu, Yoon-Hyun ^{[5
]}

Shin, In-Gu ^{[3
]}

Shvartzvald, Yossi ^{[9
]}

Yee, Jennifer C. ^{[10
]}

Cha, Sang-Mok ^{[5
,11
]}

Kim, Dong-Jin ^{[5
]}

Kim, Hyoun-Woo ^{[5
]}

Kim, Seung-Lee ^{[5
,12
]}

Lee, Chung-Uk ^{[5
]}

Lee, Dong-Joo ^{[5
]}

Lee, Yongseok ^{[5
,11
]}

Park, Byeong-Gon ^{[5
,12
]}

Pogge, Richard W. ^{[2
]}

Mroz, Przemek ^{[6
]}

Szymanski, Michal K. ^{[6
]}

Skowron, Jan ^{[6
]}

Poleski, Radek ^{[6
]}

Soszynski, Igor ^{[6
]}

Pietrukowicz, Pawel ^{[6
]}

Kozlowski, Szymon ^{[6
]}

Ulaczyk, Krzysztof ^{[13
]}

Rybicki, Krzysztof A. ^{[6
]}

Iwanek, Patryk ^{[6
]}

Wrona, Marcin ^{[6
]}

Abe, Fumio ^{[14
]}

Barry, Richard ^{[15
]}

Bennett, David P. ^{[15
,16
]}

Bhattacharya, Aparna ^{[15
,16
]}

Fujii, Hirosame ^{[14
]}

Fukui, Akihiko ^{[17
,18
]}

Hirao, Yuki ^{[19
]}

Silva, Stela Ishitani ^{[14
,15
,20
]}

Kirikawa, Rintaro ^{[19
]}

Kondo, Iona ^{[19
]}

Koshimoto, Naoki ^{[21
]}

Matsubara, Yutaka ^{[14
]}

Matsumoto, Sho ^{[19
]}

Miyazaki, Shota ^{[19
]}

Muraki, Yasushi ^{[14
]}

Okamura, Arisa ^{[19
]}

机构：

[1] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[2] Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA

[3] Chungbuk Natl Univ, Dept Phys, Cheongju 28644, South Korea

[4] Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China

[5] Korea Astron & Space Sci Inst, Daejon 34055, South Korea

[6] Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland

[7] Massey Univ, Inst Nat & Math Sci, Auckland 0745, New Zealand

[8] Univ Canterbury, Dept Phys & Astron, Private Bag 4800, Christchurch 8020, New Zealand

[9] Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel

[10] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[11] Kyung Hee Univ, Sch Space Res, Yongin 17104, Kyeonggi, South Korea

[12] Korea Univ Sci & Technol, Korea UST, 217 Gajeong Ro, Daejeon 34113, South Korea

[13] Univ Warwick, Dept Phys, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England

[14] Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi 4648601, Japan

[15] NASA, Goddard Space Flight Ctr, Code 667, Greenbelt, MD 20771 USA

[16] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[17] Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[18] Inst Astrofis Canarias, Via Lactea S-N, Tenerife 38205, Spain

[19] Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, Toyonaka, Osaka 5600043, Japan

[20] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA

[21] Univ Tokyo, Dept Astron, Grad Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[22] Sorbonne Univ, Inst Astrophys Paris, CNRS, UMR 7095, 98 Bis Bd Arago, F-75014 Paris, France

[23] Univ Auckland, Dept Phys, Private Bag 92019, Auckland, New Zealand

[24] Univ Canterbury, Mt John Observ, POB 56, Lake Tekapo 8770, New Zealand

[25] CALTECH, IPAC, Mail Code 100-22,1200 E Calif Blvd, Pasadena, CA 91125 USA

[26] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

[27] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[28] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

来源：

ASTRONOMY & ASTROPHYSICS | 2022年 / 664卷

基金：

美国国家科学基金会; 新加坡国家研究基金会;

关键词：

gravitational lensing; micro; planets and satellites; detection; GRAVITATIONAL LENSING EXPERIMENT; MAGNIFICATION MICROLENSING EVENTS; GALACTIC BULGE; BVI MAPS; MASS; PHOTOMETRY; DWARF; FREQUENCY; PARALLAX; NETWORK;

D O I：

10.1051/0004-6361/202243744

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We complete the analysis of all 2018 prime-field microlensing planets identified by the Korea Microlensing Telescope Network (KMTNet) Anomaly Finder. Among the ten previously unpublished events with clear planetary solutions, eight are either unambiguously planetary or are very likely to be planetary in nature: OGLE-2018-BLG-1126, KMT-2018-BLG-2004, OGLE-2018-BLG-1647, OGLE-2018-BLG-1367, OGLE-2018-BLG-1544, OGLE-2018-BLG-0932, OGLE-2018-BLG-1212, and KMT-2018-BLG-2718. Combined with the four previously published new Anomaly Finder events and 12 previously published (or in preparation) planets that were discovered by eye, this makes a total of 24 2018 prime-field planets discovered or recovered by Anomaly Finder. Together with a paper in preparation on 2018 subprime planets, this work lays the basis for the first statistical analysis of the planet mass-ratio function based on planets identified in KMTNet data. By systematically applying the heuristic analysis to each event, we identified the small modification in their formalism that is needed to unify the so-called close-wide and inner-outer degeneracies.

引用

页数：22

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