2022AJ....163...43H

Query : 2022AJ....163...43H

2022AJ....163...43H - Astron. J., 163, 43-43 (2022/February-0)

Systematic KMTNet planetary anomaly search. II. Six new q < 2 x 10–4 mass-ratio planets.

HWANG K.-H., ZANG W., GOULD A., UDALSKI A., BOND I.A., YANG H., MAO S. (The Lead Authors), ALBROW M.D., CHUNG S.-J., HAN C., JUNG Y.K., RYU Y.-H., SHIN I.-G., SHVARTZVALD Y., YEE J.C., 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., POLESKI R., SKOWRON J., SZYMANSKI M.K., SOSZYNSKI I., PIETRUKOWICZ P., KOZLOWSKI S., ULACZYK K., RYBICKI K.A., IWANEK P., WRONA M., GROMADZKI M. (The OGLE Collaboration), ABE F., BARRY R., BENNETT D.P., BHATTACHARYA A., FUJII H., FUKUI A., HIRAO Y., ITOW Y., KIRIKAWA R., KONDO I., KOSHIMOTO N., MUNFORD B., MATSUBARA Y., MIYAZAKI S., MURAKI Y., OLMSCHENK G., RANC C., RATTENBURY N.J., SATOH Y.K., SHOJI H., ISHITANI SILVA S., SUMI T., SUZUKI D., TRISTRAM P.J., YONEHARA A. (The MOA Collaboration), ZHANG X., ZHU W., PENNY M.T., FOUQUE P. (The Tsinghua and CFHT Microlensing Group)

Abstract (from CDS):

We apply the automated AnomalyFinder algorithm of Paper I to 2018-2019 light curves from the ≃13 deg2 covered by the six KMTNet prime fields, with cadences Γ >= 2 hr–1. We find a total of 11 planets with mass ratios q < 2 x 10–4, including 6 newly discovered planets, 1 planet that was reported in Paper I, and recovery of 4 previously discovered planets. One of the new planets, OGLE-2018-BLG-0977Lb, is in a planetary caustic event, while the other five (OGLE-2018-BLG-0506Lb, OGLE-2018-BLG-0516Lb, OGLE-2019-BLG-1492Lb, KMT-2019-BLG-0253, and KMT-2019-BLG-0953) are revealed by a "dip" in the light curve as the source crosses the host-planet axis on the opposite side of the planet. These subtle signals were missed in previous by-eye searches. The planet-host separations (scaled to the Einstein radius), s, and planet-host mass ratios, q, are, respectively, (s, q x 105) = (0.88, 4.1), (0.96 ± 0.10, 8.3), (0.94 ± 0.07, 13), (0.97 ± 0.07, 18), (0.97 ± 0.04, 4.1), and (0.74, 18), where the " ± " indicates a discrete degeneracy. The 11 planets are spread out over the range -5< logq< -3.7. Together with the two planets previously reported with q ∼ 10–5 from the 2018-2019 nonprime KMT fields, this result suggests that planets toward the bottom of this mass-ratio range may be more common than previously believed.

Abstract Copyright: © 2022. 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/163/43): f1kmta02.dat f1kmta42.dat f1kmtc02.dat f1kmtc42.dat f1kmts02.dat f1kmts42.dat f1ogle.dat f1moa.dat f3kmta01.dat f3kmta41.dat f3kmtc01.dat f3kmtc41.dat f3kmts01.dat f3kmts41.dat f3ogle.dat f4kmta01.dat f4kmtc01.dat f4kmts01.dat f4ogle.dat f4moa.dat f5kmta03.dat f5kmta43.dat f5kmtc03.dat f5kmtc43.dat f5kmts03.dat f5kmts43.dat f5ogle.dat f5moa.dat f6kmta01.dat f6kmtc01.dat f6kmts01.dat f6ogle.dat cfht.dat f7kmta02.dat f7kmta03.dat f7kmta42.dat f7kmta43.dat f7kmtc02.dat f7kmtc03.dat f7kmtc42.dat f7kmtc43.dat f7kmts02.dat f7kmts03.dat f7kmts42.dat f7ogle.dat>

Simbad objects: 59

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Number of rows : 59
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 KMT-2018-BLG-0029 * 17 37 52.670 -27 59 04.92           ~ 18 0
2 KMT-2018-BLG-0029b Pl? 17 37 52.670 -27 59 04.92           ~ 12 0
3 KMT-2018-BLG-1988b Pl? 17 41 07.8175833212 -35 35 40.895936221           ~ 5 0
4 OGLE-2019-BLG-0953 LP? 17 43 02.7960794615 -27 29 12.278774444           ~ 3 0
5 NAME EWS 2018-BLG-0506b Pl? 17 50 31.000 -31 55 27.00           ~ 5 0
6 OGLE-2018-BLG-0506 * 17 50 31.000 -31 55 27.00           ~ 10 0
7 KMT-2018-BLG-0748 * 17 51 29.880 -30 38 47.00           ~ 11 0
8 OGLE-2019-BLG-0410 * 17 51 32.000 -29 33 56.00           ~ 8 0
9 OGLE-2019-BLG-0954 * 17 51 39.180 -29 36 39.60           ~ 11 0
10 OGLE-2019-BLG-0825 Lev 17 52 21.62 -30 48 13.2           ~ 2 0
11 MOA 2015-BLG-379 * 17 52 38.11 -28 33 06.9           ~ 8 0
12 OGLE-2018-BLG-0962 * 17 52 41.95 -32 18 33.3           ~ 9 0
13 OGLE-2018-BLG-0932 * 17 53 24.290 -29 01 18.50           ~ 4 0
14 OGLE-2019-BLG-0505 * 17 53 32.140 -31 33 18.08           ~ 9 0
15 KMT-2019-BLG-0842b Pl? 17 53 50.030 -29 52 38.78           ~ 9 0
16 OGLE-2019-BLG-0763 * 17 53 50.030 -29 52 38.78           ~ 9 0
17 NAME EWS 2018-BLG-0977b Pl? 17 54 01.000 -30 36 17.00           ~ 6 0
18 OGLE-2018-BLG-0977 * 17 54 01.000 -30 36 17.00           ~ 6 0
19 2MASS J17544337-2844214 * 17 54 43.3746243771 -28 44 21.394424553           ~ 8 0
20 NAME EWS 2018-BLG-0677b Pl? 17 55 00.270 -32 00 59.51           ~ 8 0
21 OGLE-2018-BLG-0677 * 17 55 00.270 -32 00 59.51           ~ 15 0
22 MOA 2016-BLG-350 BD? 17 55 23.50 -30 12 26.1           ~ 41 0
23 OGLE-2018-BLG-1647 * 17 55 50.970 -31 49 01.20           ~ 5 0
24 MOA 2018-BLG-182b Pl 17 56 03.36 -29 04 58.4           ~ 3 0
25 MOA 2018-BLG-182c Pl 17 56 03.36 -29 04 58.4           ~ 3 0
26 MOA 2018-BLG-182 * 17 56 03.36 -29 04 58.4           ~ 26 0
27 OGLE-2018-BLG-0567 * 17 56 04.42 -27 59 13.6           ~ 8 0
28 MOA 2018-BLG-145 * 17 56 13.3348253400 -29 11 56.615704692           ~ 8 0
29 MOA 2018-BLG-145b Pl 17 56 13.3348253400 -29 11 56.615704692           ~ 7 0
30 KMT-2019-BLG-1953b Pl? 17 56 27.900 -28 12 04.00           ~ 3 0
31 KMT-2019-BLG-1953 * 17 56 27.900 -28 12 04.00           ~ 14 0
32 OGLE-2018-BLG-1544 * 17 56 30.920 -30 24 10.30           ~ 4 0
33 OGLE BLG504.22 34811 Lev 17 56 59.17 -27 58 31.6           ~ 3 0
34 KMT-2019-BLG-0953 * 17 57 21.26 -28 40 28.7           ~ 2 0
35 OGLE-2019-BLG-1142 Lev 17 58 22.990 -27 34 00.98           ~ 3 0
36 OGLE-2018-BLG-0516 * 17 58 34.000 -31 15 45.00           ~ 8 0
37 NAME EWS 2018-BLG-0516b Pl? 17 58 34.000 -31 15 45.00           ~ 5 0
38 OGLE-2018-BLG-1269 * 17 58 46.42 -27 37 04.6           ~ 6 0
39 OGLE-2018-BLG-1185 * 17 59 10.26 -27 50 06.3           ~ 7 0
40 NAME EWS 2018-BLG-1185b Pl? 17 59 10.26 -27 50 06.3           ~ 3 0
41 KMT-2019-BLG-3301 Lev 17 59 20.050 -29 06 05.62           ~ 2 0
42 KMT-2018-BLG-1025 * 17 59 27.940 -27 52 41.02           ~ 11 0
43 KMT-2018-BLG-1025b Pl? 17 59 27.940 -27 52 41.02           ~ 6 0
44 NAME EWS 2018-BLG-1700b Pl? 17 59 49.45 -28 31 43.1           ~ 3 0
45 OGLE-2018-BLG-1700 * 17 59 49.45 -28 31 43.1           ~ 26 0
46 NAME EWS 2018-BLG-0532b Pl? 17 59 56.02 -28 59 51.9           ~ 8 0
47 OGLE-2018-BLG-0532 * 17 59 56.02 -28 59 51.9           ~ 15 0
48 OGLE-2019-BLG-1492 * 18 00 23.000 -28 37 52.00           ~ 5 0
49 NAME EWS 2019-BLG-1492b Pl? 18 00 23.000 -28 37 52.00           ~ 5 0
50 OGLE-2019-BLG-1053 * 18 00 39.93 -27 20 29.7           ~ 12 0
51 NAME EWS 2019-BLG-1053b Pl? 18 00 39.93 -27 20 29.7           ~ 7 0
52 OGLE-2019-BLG-1190 * 18 01 29.21 -28 46 37.7           ~ 12 0
53 NAME Baade Window reg 18 03.5 -30 01           ~ 643 3
54 OGLE-2018-BLG-0100 * 18 04 52.260 -28 27 46.69           ~ 2 0
55 KMT-2020-BLG-0414 * 18 07 39.60 -28 29 06.8           ~ 24 0
56 MOA 2016-BLG-339 * 18 12 49.0702747824 -27 00 45.565682832           ~ 12 0
57 OGLE-2019-BLG-0960 * 18 16 03.43 -25 46 28.8           ~ 12 0
58 NAME EWS 2019-BLG-0960b Pl? 18 16 03.43 -25 46 28.8           ~ 10 0
59 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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