Han CJung YKBond IAGould AAlbrow MDChung S-JHwang K-HLee C-URyu Y-HShin I-GShvartzvald YYang HYee JCZang WCha S-MKim DKim D-JKim S-LLee D-JLee YPark B-GPogge RWAbe FBarry RBennett DPBhattacharya AFujii HFukui AHamada RHirao YSilva SIItow YKirikawa RKoshimoto NMatsubara YMiyazaki SMuraki YOlmschenk GRanc CRattenbury NJSatoh YSumi TSuzuki DTomoyoshi MTristram PJVandorou AYama HYamashita K2024-10-212024-10-212024-03-12Han C, Jung YK, Bond IA, Gould A, Albrow MD, Chung SJ, Hwang KH, Lee CU, Ryu YH, Shin IG, Shvartzvald Y, Yang H, Yee JC, Zang W, Cha SM, Kim D, Kim DJ, Kim SL, Lee DJ, Lee Y, Park BG, Pogge RW, Abe F, Barry R, Bennett DP, Bhattacharya A, Fujii H, Fukui A, Hamada R, Hirao Y, Silva SI, Itow Y, Kirikawa R, Koshimoto N, Matsubara Y, Miyazaki S, Muraki Y, Olmschenk G, Ranc C, Rattenbury NJ, Satoh Y, Sumi T, Suzuki D, Tomoyoshi M, Tristram PJ, Vandorou A, Yama H, Yamashita K. (2024). Three sub-Jovian-mass microlensing planets: MOA-2022-BLG-563Lb, KMT-2023-BLG-0469Lb, and KMT-2023-BLG-0735Lb. Astronomy and Astrophysics. 683. A&A.0004-6361https://mro.massey.ac.nz/handle/10179/71782Aims. We analyze the anomalies appearing in the light curves of the three microlensing events MOA-2022-BLG-563, KMT-2023BLG-0469, and KMT-2023-BLG-0735. The anomalies exhibit common short-term dip features that appear near the peak. Methods. From the detailed analyses of the light curves, we find that the anomalies were produced by planets accompanied by the lenses of the events. For all three events, the estimated mass ratios between the planet and host are on the order of 10−4: q ∼ 8 × 10−4 for MOA-2022-BLG-563L, q ∼ 2.5 × 10−4 for KMT-2023-BLG-0469L, and q ∼ 1.9 × 10−4 for KMT-2023-BLG-0735L. The interpretations of the anomalies are subject to a common inner-outer degeneracy, which causes ambiguity when estimating the projected planet-host separation. Results. We estimated the planet mass, Mp, host mass, Mh, and distance, DL, to the planetary system by conducting Bayesian analyses using the observables of the events. The estimated physical parameters of the planetary systems are (Mh/M, Mp/MJ, DL/kpc) = (0.48+−00.3630, 0.40+−00.3125, 6.53+−11.1257) for MOA-2022-BLG-563L, (0.47+−00.3526, 0.124+−00.092067, 7.07−+11.1903) for KMT-2023-BLG-0469L, and (0.62+−00.3435, 0.125+−00.068070, 6.26+−11.2767) for KMT-2023-BLG-0735L. According to the estimated parameters, all planets are cold planets with projected separations that are greater than the snow lines of the planetary systems, they have masses that lie between the masses of Uranus and Jupiter of the Solar System, and the hosts of the planets are main-sequence stars that are less massive than the Sun. In all cases, the planetary systems are more likely to be in the bulge with probabilities Pbulge = 64%, 73%, and 56% for MOA-2022-BLG-563, KMT-2023-BLG-0469, and KMT-2023-BLG-0735, respectively.(c) 2024 The Author/sCC BY 4.0https://creativecommons.org/licenses/by/4.0/gravitationgravitational lensing: microplanets and satellitesdetectionJournal article10.1051/0004-6361/2023479511432-0746journal-articleA115