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

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dc.citation.issue1
dc.citation.volume528
dc.contributor.authorYang H
dc.contributor.authorYee JC
dc.contributor.authorHwang K-H
dc.contributor.authorQian Q
dc.contributor.authorBond IA
dc.contributor.authorGould A
dc.contributor.authorHu Z
dc.contributor.authorZhang J
dc.contributor.authorMao S
dc.contributor.authorZhu W
dc.contributor.authorAlbrow MD
dc.contributor.authorChung S-J
dc.contributor.authorKim S-L
dc.contributor.authorPark B-G
dc.contributor.authorHan C
dc.contributor.authorJung YK
dc.contributor.authorRyu Y-H
dc.contributor.authorShin I-G
dc.contributor.authorShvartzvald Y
dc.contributor.authorCha S-M
dc.contributor.authorKim D-J
dc.contributor.authorKim H-W
dc.contributor.authorLee C-U
dc.contributor.authorLee D-J
dc.contributor.authorLee Y
dc.contributor.authorPogge RW
dc.contributor.authorZang W
dc.contributor.authorAbe F
dc.contributor.authorBarry R
dc.contributor.authorBennett DP
dc.contributor.authorBhattacharya A
dc.contributor.authorDonachie M
dc.contributor.authorFujii H
dc.contributor.authorFukui A
dc.contributor.authorHirao Y
dc.contributor.authorItow Y
dc.contributor.authorKirikawa R
dc.contributor.authorKondo I
dc.contributor.authorKoshimoto N
dc.contributor.authorSilva SI
dc.contributor.authorLi MCA
dc.contributor.authorMatsubara Y
dc.contributor.authorMuraki Y
dc.contributor.authorSuzuki D
dc.contributor.authorTristram PJ
dc.contributor.authorYonehara A
dc.contributor.authorRanc C
dc.contributor.authorMiyazaki S
dc.contributor.authorOlmschenk G
dc.contributor.authorRattenbury NJ
dc.contributor.authorSatoh Y
dc.contributor.authorShoji H
dc.contributor.authorSumi T
dc.contributor.authorTanaka Y
dc.contributor.authorYamawaki T
dc.date.accessioned2024-09-08T21:22:52Z
dc.date.available2024-09-08T21:22:52Z
dc.date.issued2024-02-01
dc.description.abstractIn 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.
dc.description.confidentialfalse
dc.edition.editionFebruary 2024
dc.format.pagination11-27
dc.identifier.citationYang H, Yee JC, Hwang KH, Qian Q, Bond IA, Gould A, Hu Z, Zhang J, Mao S, Zhu W, Albrow MD, Chung SJ, Kim SL, Park BG, Han C, Jung YK, Ryu YH, Shin IG, Shvartzvald Y, Cha SM, Kim DJ, Kim HW, Lee CU, Lee DJ, Lee Y, Pogge RW, Zang W, Abe F, Barry R, Bennett DP, Bhattacharya A, Donachie M, Fujii H, Fukui A, Hirao Y, Itow Y, Kirikawa R, Kondo I, Koshimoto N, Silva SI, Li MCA, Matsubara Y, Muraki Y, Suzuki D, Tristram PJ, Yonehara A, Ranc C, Miyazaki S, Olmschenk G, Rattenbury NJ, Satoh Y, Shoji H, Sumi T, Tanaka Y, Yamawaki T. (2024). Systematic reanalysis of KMTNet microlensing events, paper I: Updates of the photometry pipeline and a new planet candidate. Monthly Notices of the Royal Astronomical Society. 528. 1. (pp. 11-27).
dc.identifier.doi10.1093/mnras/stad3672
dc.identifier.eissn1365-2966
dc.identifier.elements-typejournal-article
dc.identifier.issn0035-8711
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71426
dc.languageEnglish
dc.publisherOxford University Press on behalf of the Royal Astronomical Society.
dc.publisher.urihttps://academic.oup.com/mnras/article/528/1/11/7452891
dc.relation.isPartOfMonthly Notices of the Royal Astronomical Society
dc.rights(c) The author/sen
dc.rights.licenseCC BYen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectgravitational lensing: micro
dc.subjecttechniques: photometric
dc.subjectplanets and satellites: detection
dc.titleSystematic reanalysis of KMTNet microlensing events, paper I: Updates of the photometry pipeline and a new planet candidate
dc.typeJournal article
pubs.elements-id485777
pubs.organisational-groupOther
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