Gaia22dkvLb: A Microlensing Planet Potentially Accessible to Radial-velocity Characterization

Simple item page
dc.contributor.authorWu, Zexuan
dc.contributor.authorDong, Subo
dc.contributor.authorYi, Tuan
dc.contributor.authorLiu, Zhuokai
dc.contributor.authorEl-Badry, Kareem
dc.contributor.authorGould, Andrew
dc.contributor.authorWyrzykowski, L.
dc.contributor.authorRybicki, K. A.
dc.contributor.authorBachelet, Etienne
dc.contributor.authorChristie, Grant W.
dc.contributor.authorde Almeida, L.
dc.contributor.authorMonard, L. A. G.
dc.contributor.authorMcCormick, J.
dc.contributor.authorNatusch, Tim
dc.contributor.authorZielinski, P.
dc.contributor.authorChen, Huiling
dc.contributor.authorHuang, Yang
dc.contributor.authorLiu, Chang
dc.contributor.authorMerand, A.
dc.contributor.authorMroz, Przemek
dc.contributor.authorShangguan, Jinyi
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorWoillez, J.
dc.contributor.authorZhang, Huawei
dc.contributor.authorHambsch, Franz-Josef
dc.contributor.authorMikolajczyk, P. J.
dc.contributor.authorGromadzki, M.
dc.contributor.authorRatajczak, M.
dc.contributor.authorKruszynska, Katarzyna
dc.contributor.authorIhanec, N.
dc.contributor.authorPylypenko, Uliana
dc.contributor.authorSitek, M.
dc.contributor.authorHowil, K.
dc.contributor.authorZola, Staszek
dc.contributor.authorMichniewicz, Olga
dc.contributor.authorZejmo, Michal
dc.contributor.authorLewis, Fraser
dc.contributor.authorBronikowski, Mateusz
dc.contributor.authorPotter, Stephen
dc.contributor.authorAndrzejewski, Jan
dc.contributor.authorMerc, Jaroslav
dc.contributor.authorStreet, Rachel
dc.contributor.authorFukui, Akihiko
dc.contributor.authorJaimes, R. Figuera
dc.contributor.authorBozza, V.
dc.contributor.authorRota, P.
dc.contributor.authorCassan, A.
dc.contributor.authorDominik, M.
dc.contributor.authorTsapras, Y.
dc.contributor.authorHundertmark, M.
dc.contributor.authorWambsganss, J.
dc.contributor.authorBakowska, K.
dc.contributor.authorSlowikowska, A.
dc.date.accessioned2025-01-20T16:12:52Z
dc.date.available2025-01-20T16:12:52Z
dc.date.issued2024
dc.description.abstractWe report discovering an exoplanet from following up a microlensing event alerted by Gaia. The event Gaia22dkv is toward a disk source rather than the traditional bulge microlensing fields. Our primary analysis yields a Jovian planet with Mp=0.59-0.05+0.15MJ at a projected orbital separation r perpendicular to=1.4-0.3+0.8 au, and the host is a similar to 1.1 M circle dot turnoff star at similar to 1.3 kpc. At r 'approximate to 14 , the host is far brighter than any previously discovered microlensing planet host, opening up the opportunity to test the microlensing model with radial velocity (RV) observations. RV data can be used to measure the planet's orbital period and eccentricity, and they also enable searching for inner planets of the microlensing cold Jupiter, as expected from the "inner-outer correlation" inferred from Kepler and RV discoveries. Furthermore, we show that Gaia astrometric microlensing will not only allow precise measurements of its angular Einstein radius theta E but also directly measure the microlens parallax vector and unambiguously break a geometric light-curve degeneracy, leading to the definitive characterization of the lens system.
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-3881/ad5203
dc.identifier.eissn1538-3881
dc.identifier.issn0004-6256
dc.identifier.urihttps://doi.org/10.3847/1538-3881/ad5203
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90359
dc.identifier.wosidWOS:001268473400001
dc.issue.numero2
dc.language.isoen
dc.revistaAstronomical journal
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleGaia22dkvLb: A Microlensing Planet Potentially Accessible to Radial-velocity Characterization
dc.typeartículo
dc.volumen168
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas