论文标题
OGLE-2016-BLG-1093LB：一个位于银河凸起
OGLE-2016-BLG-1093Lb: A Sub-Jupiter-mass Spitzer Planet Located in Galactic Bulge
论文作者
论文摘要
OGLE-2016-BLG-1093是一个行星微透镜事件，是统计$ Spitzer $ Microlens Alallax样本的一部分。该事件的Microlens视差效应的精确测量，结合有限源效应的测量，导致直接测量镜头质量和系统距离：$ M _ {\ rm host} = 0.38 $ - $ 0.57 \，M _ {\ odot} $，$ m_p = 0.59 $ - jup} $，系统位于银河凸起（$ d_l \ sim 8.1 $ kpc）。因为这是一个高磁化事件，所以我们还能够凭经验表明，“便宜的空间视差”概念Gould＆Yee（2012）以$ |π_ {\ rm e} | $产生良好的约束（且一致）的结果。这表明该概念可以扩展到许多两体镜头。最后，我们在此事件中简要探索了$ Spitzer $ Light曲线中的系统学，并表明它们的潜在影响得到了颜色约束的强烈减轻。
OGLE-2016-BLG-1093 is a planetary microlensing event that is part of the statistical $Spitzer$ microlens parallax sample. The precise measurement of the microlens parallax effect for this event, combined with the measurement of finite source effects, leads to a direct measurement of the lens masses and system distance: $M_{\rm host} = 0.38$--$0.57\, M_{\odot}$, $m_p = 0.59$--$0.87\, M_{\rm Jup}$, and the system is located at the Galactic bulge ($D_L \sim 8.1$ kpc). Because this was a high-magnification event, we are also able to empirically show that the "cheap-space parallax" concept Gould & Yee (2012) produces well-constrained (and consistent) results for $|π_{\rm E}|$. This demonstrates that this concept can be extended to many two-body lenses. Finally, we briefly explore systematics in the $Spitzer$ light curve in this event and show that their potential impact is strongly mitigated by the color-constraint.
