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

作     者：解小佳 东苏勃 Yossi Shvartzvald Andrew Gould Andrzej Udalski Jean-Philippe Beaulieu Charles Beichman Laird Miller Close Calen B.Henderson Jared R.Males Jean-Baptiste Marquette Katie M.Morzinski Christopher R.Gelino Xiao-Jia Xie;Subo Dong;Yossi Shvartzvald;Andrew Gould;Andrzej Udalski;Jean-Philippe Beaulieu;Charles Beichman;Laird Miller Close;Calen BHenderson;Jared RMales;Jean-Baptiste Marquette;Katie MMorzinski;Christopher RGelino

作者机构：Kavli Institute for Astronomy and AstrophysicsPeking UniversityBeijing 100871China Department of AstronomyPeking UniversityBeijing 100871China Department of Particle Physics and AstrophysicsWeizmann Institute of ScienceRehovot 76100Israel Department of AstronomyOhio State University140 W.18th AvenueColumbusOH 43210USA Max-Planck-Institute for AstronomyKoigstuhl 17D-69117 HeidelbergGermany Astronomical ObservatoryUniversity of WarsawAl.Ujazdowskie 400-478 WarszawaPoland School of Natural SciencesUniversity of TasmaniaPrivate Bag 37 HobartTasmania 7001Australia Sorbonne UniversiteUPMC Universite Paris 6 et CNRSUMR 7095Institut d'Astrophysique de Paris98 bis Bd AragoF-75014 ParisFrance Jet Propulsion LaboratoryCalifornia Institute of Technology4800 Oak Grove DrivePasadenaCA 91109USA Caltech/IPAC-NASA Exoplanet Science Institute770 S.Wilson AvePasadenaCA 91106USA Steward ObservatoryUniversity of ArizonaTucsonAZ 85721USA IPACMail Code 100-22Caltech1200 East California BoulevardPasadenaCA 91125USA Laboratoire d'Astrophysique de BordeauxUniv.BordeauxCNRSB18Nallee Geoffroy Saint-HilaireF-33615 FessacFrance 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2021年第21卷第12期

页      面：357-364页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：the support by National Key R&D Program of China(No.2019YFA0405100) the China Manned Space Project with NO.CMS-CSST-2021-A11 and Project 11573003 supported by the National Natural Science Foundation of China(NSFC) supported by a NASA Keck PI Data Award possible by the generous financial support of the W.M.Keck Foundation funding from the National Science Centre,Poland,grant MAESTRO 2014/14/A/ST9/00121 to AU the financial support of the ANR COLD WORLDS(ANR-18-CE31-0002) supported by the NASA Exoplanets Research Program(XRP)by cooperative agreement NNX16AD44G supported by the University of Tasmania through the UTAS Foundation and the endowed Warren Chair in Astronomy 

主　　题：gravitational lensing:micro instrumentation:adaptive optics instrumentation:high angular resolution (stars:)planetary systems 

摘      要：We constrain the host-star flux of the microlensing planet OGLE-2014-BLG-0676 Lb using adaptive optics(AO)images taken by the Magellan and Keck *** 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 *** that the blend is the lens star,we find that the host is a 0.73_(-0.29)^(+0.14)M_(⊙)star at a distance of2.67_(-1.41)^(+0.77)kpc,where the relatively large uncertainty in angular Einstein radius measurement is the major source of *** mass of M_(p)=3.68_(-1.44)^(+0.69)M_J,the planet is likely asuper Jupiterat a projected separation of r_(⊥)=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_(⊥)=2.56_(-1.41)^(+0.84)*** estimates are consistent with the previous Bayesian analysis based on a Galactic ***-2014-BLG-0676 Lb belongs to a sample of planets discovered in asecondgenerationplanetary microlensing survey and we attempt to systematically constrain host properties of this sample with high-resolution imaging to study the distribution of planets.