SIMBAD references

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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