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Table · dataset · 2022

Systematic KMTNet Planetary Anomaly Search. II.

Listed in IVOA Registry (Virtual Observatory)

We apply the automated AnomalyFinder algorithm of Paper I to 2018-2019 light curves from the ~13deg^2^ covered by the six KMTNet prime fields, with cadences {Gamma}>~2/hr.

Description

We find a total of 11 planets with mass ratios q<2x10^-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,qx105)=(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.

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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.

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Where it is published

Documentation and papers

Catalogue records · 2

Topics

Stated by source
Infrared · Optical
Provenance · 1 source records, 9 field assertions
SourceKeyLast seenRaw
IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/aj/163/4313 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:infraredsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:opticalsource · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0