OGLE-2011-BLG-0265Lb: A JOVIAN MICROLENSING PLANET ORBITING AN M DWARF

OGLE-2011-BLG-0265Lb: A JOVIAN MICROLENSING PLANET ORBITING AN M DWARF
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OGLE-2011-BLG-0265Lb:一颗围绕 M 矮星运行的木星微透镜行星

DOI:
10.1088/0004-637x/804/1/33
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发表时间:
2015
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
Skowron J
Skowron J
中科院分区:
--
文献类型:
--
作者:
Skowron J

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我们报告发现了一颗绕 M 矮星运行的木星质量行星,该行星引发了微透镜事件 OGLE-2011-BLG-0265。这样的系统在已知的行星系统中非常罕见,因此这一发现对于行星形成和演化的理论研究具有重要意义。行星信号的高节奏时间覆盖,加上整个事件的扩展观测,使我们能够准确地模拟观测到的光变曲线。然而,最终的微透镜解决方案仍然是简并的,产生了行星和主恒星的两种可能的配置。在首选解的情况下,行星的质量为 ${{M} _ {{\rm p}}}= 0.9\pm 0.3\{{M} _ {{\rm J}}} $
We report the discovery of a Jupiter-mass planet orbiting an M-dwarf star that gave rise to the microlensing event OGLE-2011-BLG-0265. Such a system is very rare among known planetary systems and thus the discovery is important for theoretical studies of planetary formation and evolution. High-cadence temporal coverage of the planetary signal, combined with extended observations throughout the event, allows us to accurately model the observed light curve. However, the final microlensing solution remains degenerate, yielding two possible configurations of the planet and the host star. In the case of the preferred solution, the mass of the planet is ${{M} _ {{\rm p}}}= 0.9\pm 0.3\{{M} _ {{\rm J}}} $
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