2023AJ....165..103Z

Query : 2023AJ....165..103Z

2023AJ....165..103Z - Astron. J., 165, 103 (2023/March-0)

Systematic KMTNet Planetary Anomaly Search. VII. Complete Sample of q < 10–4 Planets from the First 4 yr Survey.

ZANG W., JUNG Y.K., YANG H., ZHANG X., UDALSKI A., YEE J.C., GOULD A., MAO S. (The Leading Authors), ALBROW M.D., CHUNG S.-J., HAN C., HWANG K.-H., RYU Y.-H., SHIN I.-G., SHVARTZVALD Y., CHA S.-M., KIM D.-J., KIM H.-W., KIM S.-L., LEE C.-U., LEE D.-J., LEE Y., PARK B.-G., POGGE R.W. (The KMTNet Collaboration), MROZ P., SKOWRON J., POLESKI R., SZYMANSKI M.K., SOSZYNSKI I., PIETRUKOWICZ P., KOZLOWSKI S., ULACZYK K., RYBICKI K.A., IWANEK P., WRONA M., GROMADZKI M. (The OGLE Collaboration), WANG H., ZHANG J., ZHU W. (The MAP Collaboration)

Abstract (from CDS):

We present the analysis of seven microlensing planetary events with planet/host mass ratios q < 10–4: KMT-2017-BLG-1194, KMT-2017-BLG-0428, KMT-2019-BLG-1806, KMT-2017-BLG-1003, KMT-2019-BLG-1367, OGLE-2017-BLG-1806, and KMT-2016-BLG-1105. They were identified by applying the Korea Microlensing Telescope Network (KMTNet) AnomalyFinder algorithm to 2016-2019 KMTNet events. A Bayesian analysis indicates that all the lens systems consist of a cold super-Earth orbiting an M or K dwarf. Together with 17 previously published and three that will be published elsewhere, AnomalyFinder has found a total of 27 planets that have solutions with q < 10–4 from 2016-2019 KMTNet events, which lays the foundation for the first statistical analysis of the planetary mass-ratio function based on KMTNet data. By reviewing the 27 planets, we find that the missing planetary caustics problem in the KMTNet planetary sample has been solved by AnomalyFinder. We also find a desert of high-magnification planetary signals (A ≳ 65), and a follow-up project for KMTNet high-magnification events could detect at least two more q < 10–4 planets per year and form an independent statistical sample.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Gravitational microlensing exoplanet detection

VizieR on-line data: <Available at CDS (J/AJ/165/103): table1.dat fig1.dat fig4.dat fig5.dat fig6.dat fig7.dat fig8.dat fig10.dat>

Simbad objects: 45

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Number of rows : 45
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 OGLE BLG654.31 22909 * 17 34 22.54 -29 17 05.0           ~ 7 0
2 KMT-2018-BLG-0029 * 17 37 52.670 -27 59 04.92           ~ 18 0
3 KMT-2018-BLG-1988 LM* 17 41 07.8175833212 -35 35 40.895936221           ~ 4 0
4 KMT-2017-BLG-0849 * 17 41 26.270 -25 16 52.39           ~ 2 0
5 KMT-2017-BLG-1003 Lev 17 41 38.760 -24 22 26.18           ~ 4 0
6 KMT-2017-BLG-1057 * 17 41 56.640 -22 20 06.40           ~ 2 0
7 KMT-2016-BLG-1105 Lev 17 45 47.340 -26 15 58.93           ~ 6 0
8 OGLE-2017-BLG-1806 Lev 17 46 29.580 -24 16 20.17           ~ 7 0
9 MOA 2009-BLG-266b Pl 17 48 05.950 -35 00 19.48           ~ 16 1
10 OGLE-2018-BLG-0506 * 17 50 31.000 -31 55 27.00           ~ 10 0
11 OGLE-2019-BLG-0410 * 17 51 32.000 -29 33 56.00           ~ 8 0
12 NAME EWS 2017-BLG-0173b Pl 17 51 52.95 -29 16 16.9           ~ 9 0
13 OGLE-2017-BLG-0173 * 17 51 52.95 -29 16 16.9           ~ 21 0
14 OGLE BLG535.21 11771 * 17 52 00.19 -32 12 38.7           ~ 4 0
15 NAME MOA 2013-BLG-260Bb Pl 17 52 07.49 -29 50 46.0           ~ 19 0
16 MOA 2015-BLG-379 * 17 52 38.11 -28 33 06.9           ~ 8 0
17 OGLE-2017-BLG-1434 * 17 53 07.29 -30 14 44.6           ~ 9 0
18 OGLE-2018-BLG-1126 * 17 53 25.410 -31 43 28.99           ~ 6 0
19 OGLE-2016-BLG-0007 Lev 17 53 25.45 -29 38 32.1           ~ 6 0
20 KMT-2016-BLG-0212b Pl 17 53 45.420 -29 05 12.80           ~ 3 0
21 KMT-2016-BLG-0212 * 17 53 45.420 -29 05 12.80           ~ 12 0
22 OGLE-2019-BLG-0763 * 17 53 50.030 -29 52 38.78           ~ 9 0
23 OGLE-2018-BLG-0977 * 17 54 01.000 -30 36 17.00           ~ 6 0
24 NAME EWS 2005-BLG-390b Pl 17 54 19.2 -30 22 38           ~ 80 1
25 KMT-2017-BLG-0090 Lev 17 54 40.47 -31 01 54.9           ~ 8 0
26 MOA 2016-BLG-350 BD? 17 55 23.50 -30 12 26.1           ~ 41 0
27 MOA 2007-BLG-308b Pl 17 56 25.96 -32 14 14.7           ~ 15 1
28 KMT-2019-BLG-1953b Pl? 17 56 27.900 -28 12 04.00           ~ 3 0
29 KMT-2021-BLG-0171 Lev 17 56 58.180 -30 05 34.58           ~ 9 0
30 KMT-2022-BLG-0440 Lev 17 58 20.060 -32 17 43.12           ~ 6 0
31 OGLE-2018-BLG-1185 * 17 59 10.26 -27 50 06.3           ~ 7 0
32 KMT-2018-BLG-1025 * 17 59 27.940 -27 52 41.02           ~ 11 0
33 OGLE-2018-BLG-0532 * 17 59 56.02 -28 59 51.9           ~ 15 0
34 OGLE-2019-BLG-1053 * 18 00 39.93 -27 20 29.7           ~ 12 0
35 NAME EWS 2019-BLG-1053b Pl? 18 00 39.93 -27 20 29.7           ~ 7 0
36 OGLE-2019-BLG-1250 Lev 18 02 09.010 -29 24 53.60           ~ 5 0
37 KMT-2017-BLG-0428 Lev 18 05 32.460 -28 29 25.01           ~ 4 0
38 KMT-2016-BLG-0625 Lev 18 05 39.660 -27 13 36.70           ~ 4 0
39 NAME EWS 2005-BLG-169b Pl 18 06 05.32 -30 43 57.5           ~ 42 1
40 OGLE-2005-BLG-169 * 18 06 05.32 -30 43 57.5     20.4     ~ 68 1
41 MOA 2012-BLG-527 * 18 08 04.62 -29 43 53.7           ~ 28 0
42 KMT-2019-BLG-1367 Lev 18 09 53.120 -29 45 43.96           ~ 4 0
43 OGLE-2019-BLG-0960 * 18 16 03.43 -25 46 28.8           ~ 12 0
44 KMT-2017-BLG-1194 Lev 18 17 17.310 -25 19 26.18           ~ 5 0
45 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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