TY - JOUR
T1 - Characterizing microlensing planetary system OGLE-2014-BLG-0676Lb with adaptive optics imaging
AU - Xie, Xiao Jia
AU - Dong, Subo
AU - Shvartzvald, Yossi
AU - Gould, Andrew
AU - Udalski, Andrzej
AU - Beaulieu, Jean Philippe
AU - Beichman, Charles
AU - Close, Laird Miller
AU - Henderson, Calen B.
AU - Males, Jared R.
AU - Marquette, Jean Baptiste
AU - Morzinski, Katie M.
AU - Gelino, Christopher R.
N1 - Publisher Copyright:
© 2021 National Astronomical Observatories, CAS and IOP Publishing Ltd..
PY - 2021/12
Y1 - 2021/12
N2 - We 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 star at a distance of kpc, where the relatively large uncertainty in angular Einstein radius measurement is the major source of uncertainty. With mass of , the planet is likely a "super Jupiter"at a projected separation of AU, and a degenerate model yields a similar at a closer separation of 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.
AB - We 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 star at a distance of kpc, where the relatively large uncertainty in angular Einstein radius measurement is the major source of uncertainty. With mass of , the planet is likely a "super Jupiter"at a projected separation of AU, and a degenerate model yields a similar at a closer separation of 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.
KW - (stars:) planetary systems
KW - gravitational lensing: micro
KW - instrumentation: adaptive optics
KW - instrumentation: high angular resolution
UR - https://www.scopus.com/pages/publications/85123521777
UR - https://www.scopus.com/pages/publications/85123521777#tab=citedBy
U2 - 10.1088/1674-4527/ac2a09
DO - 10.1088/1674-4527/ac2a09
M3 - Article
AN - SCOPUS:85123521777
SN - 1674-4527
VL - 21
JO - Research in Astronomy and Astrophysics
JF - Research in Astronomy and Astrophysics
IS - 12
M1 - 303
ER -