2024MNRAS.528...11Y

Query : 2024MNRAS.528...11Y

2024MNRAS.528...11Y - Mon. Not. R. Astron. Soc., 528, 11-27 (2024/February-2)

Systematic reanalysis of KMTNet microlensing events, paper I: Updates of the photometry pipeline and a new planet candidate.

YANG H., YEE J.C., HWANG K.-H., QIAN Q., BOND I.A., GOULD A., HU Z., ZHANG J., MAO S., ZHU W., ALBROW M.D., CHUNG S.-J., KIM S.-L., PARK B.-G., HAN C., JUNG Y.K., RYU Y.-H., SHIN I.-G., SHVARTZVALD Y., CHA S.-M., KIM D.-J., KIM H.-W., LEE C.-U., LEE D.-J., LEE Y., POGGE R.W., ZANG W., ABE F., BARRY R., BENNETT D.P., BHATTACHARYA A., DONACHIE M., FUJII H., FUKUI A., HIRAO Y., ITOW Y., KIRIKAWA R., KONDO I., KOSHIMOTO N., ISHITANI SILVA S., LI M.C.A., MATSUBARA Y., MURAKI Y., SUZUKI D., TRISTRAM P.J., YONEHARA A., RANC C., MIYAZAKI S., OLMSCHENK G., RATTENBURY N.J., SATOH Y., SHOJI H., SUMI T., TANAKA Y. and YAMAWAKI T.

Abstract (from CDS):

In this work, we update and develop algorithms for KMTNet tender-love care (TLC) photometry in order to create a new, mostly automated, TLC pipeline. We then start a project to systematically apply the new TLC pipeline to the historic KMTNet microlensing events, and search for buried planetary signals. We report the discovery of such a planet candidate in the microlensing event MOA-2019-BLG-421/KMT-2019-BLG-2991. The anomalous signal can be explained by either a planet around the lens star or the orbital motion of the source star. For the planetary interpretation, despite many degenerate solutions, the planet is most likely to be a Jovian planet orbiting an M or K dwarf, which is a typical microlensing planet. The discovery proves that the project can indeed increase the sensitivity of historic events and find previously undiscovered signals.

Abstract Copyright: © The Author(s) 2023. Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): gravitational lensing: micro - techniques: photometric - planets and satellites: detection

Simbad objects: 30

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Number of rows : 30
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-2022-BLG-1013 Lev 17 38 50.220 -28 21 20.41           K2V 3 0
2 KMT-2022-BLG-0371 Lev 17 41 26.860 -34 41 55.21           G4V 4 0
3 OGLE-2019-BLG-0249 Lev 17 41 36.840 -34 42 06.30           ~ 2 0
4 KMT-2017-BLG-1003 Lev 17 41 38.760 -24 22 26.18           ~ 4 0
5 OGLE-2019-BLG-0679 Lev 17 42 57.700 -27 46 22.37           ~ 3 0
6 KMT-2016-BLG-1105 Lev 17 45 47.340 -26 15 58.93           ~ 6 0
7 OGLE-2017-BLG-1806 Lev 17 46 29.580 -24 16 20.17           ~ 7 0
8 KMT-2016-BLG-1855 Lev 17 50 13.250 -29 12 26.39           ~ 4 0
9 KMT-2021-BLG-0192 Lev 17 52 25.190 -30 00 31.28           ~ 2 0
10 KMT-2016-BLG-1751 Lev 17 53 28.620 -32 09 06.52           ~ 5 0
11 OGLE-2016-BLG-1635 Lev 17 54 01.220 -30 46 38.10           ~ 4 0
12 MOA 2016-BLG-350 BD? 17 55 23.50 -30 12 26.1           ~ 41 0
13 KMT-2022-BLG-0874 Lev 17 55 27.730 -28 18 21.82           ~ 3 0
14 KMT-2021-BLG-0171b Pl? 17 56 58.180 -30 05 34.58           ~ 3 0
15 OGLE-2016-BLG-1749 Lev 17 57 44.180 -29 06 25.60           ~ 3 0
16 KMT-2022-BLG-0440b Pl? 17 58 20.060 -32 17 43.12           ~ 2 0
17 KMT-2022-BLG-0440 Lev 17 58 20.060 -32 17 43.12           ~ 6 0
18 KMT-2021-BLG-0912 * 17 59 17.080 -31 59 51.50           K 4 0
19 KMT-2021-BLG-2294 Lev 18 00 14.980 -28 36 44.78           ~ 3 0
20 OGLE-2019-BLG-1250 Lev 18 02 09.010 -29 24 53.60           ~ 5 0
21 KMT-2022-BLG-2397 Lev 18 02 19.730 -26 53 28.10           ~ 3 0
22 KMT-2021-BLG-1391 Lev 18 02 44.060 -28 03 37.80           ~ 11 0
23 NAME Baade Window reg 18 03.5 -30 01           ~ 643 3
24 KMT-2017-BLG-0428 Lev 18 05 32.460 -28 29 25.01           ~ 4 0
25 KMT-2019-BLG-2991 Lev 18 06 10.910 -27 29 07.69           ~ 3 0
26 KMT-2020-BLG-0414b Pl? 18 07 39.60 -28 29 06.8           ~ 12 0
27 KMT-2019-BLG-1367 Lev 18 09 53.120 -29 45 43.96           ~ 4 0
28 KMT-2021-BLG-0119 Lev 18 16 00.130 -29 44 38.00           ~ 2 0
29 KMT-2017-BLG-1194 Lev 18 17 17.310 -25 19 26.18           ~ 5 0
30 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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