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Faint-source-star planetary microlensing: the discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb

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dc.abstract.enWe report the discovery of a planet - OGLE-2014-BLG-0676Lb- via gravitational microlensing. Observations for the lensing event were made by the following groups: Microlensing Observations in Astrophysics; Optical Gravitational Lensing Experiment; Wise Observatory; RoboNET/Las Cumbres Observatory Global Telescope; Microlensing Network for the Detection of Small Terrestrial Exoplanets; and μ-FUN. All analyses of the light-curve data favour a lens system comprising a planetary mass orbiting a host star. The most-favoured binary lens model has a mass ratio between the two lens masses of (4.78 ± 0.13) × 10<SUP>-3</SUP>. Subject to some important assumptions, a Bayesian probability density analysis suggests the lens system comprises a 3.09_{-1.12}^{+1.02} M<SUB>J</SUB> planet orbiting a 0.62_{-0.22}^{+0.20} M<SUB>☉</SUB> host star at a deprojected orbital separation of 4.40_{-1.46}^{+2.16} au. The distance to the lens system is 2.22_{-0.83}^{+0.96} kpc. Planet OGLE-2014-BLG-0676Lb provides additional data to the growing number of cool planets discovered using gravitational microlensing against which planetary formation theories may be tested. Most of the light in the baseline of this event is expected to come from the lens and thus high-resolution imaging observations could confirm our planetary model interpretation.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorKozłowski, Szymon
dc.contributor.authorSoszyński, Igor
dc.contributor.authorSzymański, Michał
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorSkowron, Jan
dc.contributor.authorWyrzykowski, Łukasz
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorJuncher, D.
dc.contributor.authorHundertmark, M.
dc.contributor.authorMancini, L.
dc.contributor.authorKorhonen, H.
dc.contributor.authorKerins, E.
dc.contributor.authorKains, N.
dc.contributor.authorRahvar, S.
dc.contributor.authorSteele, I. A.
dc.contributor.authorRabus, M.
dc.contributor.authorMathiasen, M.
dc.contributor.authorMartin, R.
dc.contributor.authorHarpsøe, K.
dc.contributor.authorHardis, S.
dc.contributor.authorGiannini, E.
dc.contributor.authorElyiv, A.
dc.contributor.authorLiebig, C.
dc.contributor.authorHinse, T. C.
dc.contributor.authorBramich, D. M.
dc.contributor.authorBachelet, E.
dc.contributor.authorD'Ago, G.
dc.contributor.authorWilliams, A.
dc.contributor.authorFriedmann, M.
dc.contributor.authorSchmidt, R.
dc.contributor.authorMenzies, J.
dc.contributor.authorHorne, K.
dc.contributor.authorJaimes, R. Figuera
dc.contributor.authorAndersen, J. M.
dc.contributor.authorBrowne, P.
dc.contributor.authorAlsubai, K.
dc.contributor.authorKaspi, S.
dc.contributor.authorDiehl, C.
dc.contributor.authorDamerdji, Y.
dc.contributor.authorNovati, S. Calchi
dc.contributor.authorBozza, V.
dc.contributor.authorDreizler, S.
dc.contributor.authorSuzuki, D.
dc.contributor.authorSullivan, D. J.
dc.contributor.authorSharan, A.
dc.contributor.authorUlaczyk, K.
dc.contributor.authorYonehara, A.
dc.contributor.authorTristram, P. J.
dc.contributor.authorKoshimoto, N.
dc.contributor.authorMasuda, K.
dc.contributor.authorLing, C. H.
dc.contributor.authorLi, M. C. A.
dc.contributor.authorItow, Y.
dc.contributor.authorOhnishi, K.
dc.contributor.authorNagakane, M.
dc.contributor.authorMuraki, Y.
dc.contributor.authorMatsubara, Y.
dc.contributor.authorSaito, To.
dc.contributor.authorOyokawa, H.
dc.contributor.authorDonachie, M.
dc.contributor.authorBhattacharya, A.
dc.contributor.authorMróz, Przemysław
dc.contributor.authorHirao, Y.
dc.contributor.authorWambsganss, J.
dc.contributor.authorFukui, A.
dc.contributor.authorVilela, C.
dc.contributor.authorFreeman, M.
dc.contributor.authorEvans, P.
dc.contributor.authorMaoz, D.
dc.contributor.authorShvartzvald, Y.
dc.contributor.authorBond, I. A.
dc.contributor.authorTsapras, Y.
dc.contributor.authorStreet, R. A.
dc.contributor.authorDominik, M.
dc.contributor.authorJørgensen, U. G.
dc.contributor.authorBarry, R.
dc.contributor.authorAsakura, Y.
dc.contributor.authorAbe, F.
dc.contributor.authorScarpetta, G.
dc.contributor.authorTaylor, J.
dc.contributor.authorSurdej, J.
dc.contributor.authorSnodgrass, C.
dc.contributor.authorSkottfelt, J.
dc.contributor.authorSumi, T.
dc.contributor.authorPoleski, Radosław
dc.contributor.authorBennett, D. P.
dc.contributor.authorRattenbury, N. J.
dc.contributor.authorTregloan-Reed, J.
dc.date.accessioned2024-01-25T00:15:35Z
dc.date.available2024-01-25T00:15:35Z
dc.date.copyright2016-12-12
dc.date.issued2017
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number3
dc.description.versionORIGINAL_AUTHOR
dc.description.volume466
dc.identifier.doi10.1093/MNRAS/STW3185
dc.identifier.issn0035-8711
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/106938
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2017MNRAS.466.2710R
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.pages2710-2717
dc.rightsOther
dc.sciencecloudnosend
dc.titleFaint-source-star planetary microlensing: the discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb
dc.typeJournalArticle
dspace.entity.typePublication