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Characterizing microlensing planetary system OGLE-2014-BLG-0676Lb with adaptive optics imaging

dc.contributor.authorXIE, Xiao-Jia
dc.contributor.authorDONG, Subo
dc.contributor.authorSHVARTZVALD, Yossi
dc.contributor.authorGOULD, Andrew
dc.contributor.authorUDALSKI, Andrzej
hal.structure.identifierInstitut d'Astrophysique de Paris [IAP]
dc.contributor.authorBEAULIEU, Jean-Philippe
dc.contributor.authorBEICHMAN, Charles
dc.contributor.authorCLOSE, Laird Miller
dc.contributor.authorB. HENDERSON, Calen
dc.contributor.authorR. MALES, Jared
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorMARQUETTE, Jean-Baptiste
dc.contributor.authorM. MORZINSKI, Katie
dc.contributor.authorR. GELINO, Christopher
dc.date.issued2021
dc.identifier.issn1674-4527
dc.description.abstractEnWe constrain the host-star flux of the microlensing planet OGLE-2014-BLG-0676Lb using adaptive optics (AO) images taken by the Magellan and Keck telescopes. We measure the flux of the light blended with the microlensed source to be K = 16.79 ± 0.04 mag and J = 17.76 ± 0.03 mag. Assuming that the blend is the lens star, we find that the host is a ${0.73}_{-0.29}^{+0.14}{M}_{\odot }$ star at a distance of ${2.67}_{-1.41}^{+0.77}$ kpc, where the relatively large uncertainty in angular Einstein radius measurement is the major source of uncertainty. With mass of ${M}_{p}={3.68}_{-1.44}^{+0.69}{M}_{J}$ , the planet is likely a "super Jupiter" at a projected separation of ${r}_{\perp }={4.53}_{-2.50}^{+1.49}$ AU, and a degenerate model yields a similar ${M}_{p}={3.73}_{-1.47}^{+0.73}{M}_{J}$ at a closer separation of ${r}_{\perp }={2.56}_{-1.41}^{+0.84}$ AU. Our estimates are consistent with the previous Bayesian analysis based on a Galactic model. OGLE-2014-BLG-0676Lb belongs to a sample of planets discovered in a "second-generation" planetary microlensing survey and we attempt to systematically constrain host properties of this sample with high-resolution imaging to study the distribution of planets. *This paper includes data gathered with the 6.5m Magellan Clay Telescope at Las Campanas Observatory, Chile.
dc.description.sponsorshipStatistiques des planètes proches de leur lieu de formation et leur distribution dans le disque et la barre de notre Galaxie - ANR-18-CE31-0002
dc.language.isoen
dc.publisherIOP Publishing
dc.subject.engravitational lensing: micro
dc.subject.eninstrumentation: adaptive optics
dc.subject.eninstrumentation: high angular resolution
dc.subject.en(stars:) planetary systems
dc.subject.enAstrophysics - Earth and Planetary Astrophysics
dc.subject.enAstrophysics - Astrophysics of Galaxies
dc.subject.enAstrophysics - Solar and Stellar Astrophysics
dc.title.enCharacterizing microlensing planetary system OGLE-2014-BLG-0676Lb with adaptive optics imaging
dc.typeArticle de revue
dc.identifier.doi10.1088/1674-4527/ac2a09
dc.subject.halPlanète et Univers [physics]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv2112.08030
bordeaux.journalResearch in Astronomy and Astrophysics
bordeaux.volume21
bordeaux.peerReviewedoui
hal.identifierinsu-03678875
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//insu-03678875v1
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