论文标题

OGLE III和GAIA目录的交叉匹配:黑镜微透镜候选者的研究

Cross-Matching of OGLE III and GAIA catalogues: Investigation of Dark-lens microlensing candidates

论文作者

Dehghani, Amirhosein, Rahvar, Sohrab

论文摘要

在这项工作中,我们使用$ 13 $的微透镜候选者,带有来自Ogle III目录\ Cite {2016Mnras.458.3012W}的深色镜头,并与Gaia目录进行了交叉匹配。我们通过比较恒星的坐标和幅度,并使用源恒星的正确运动和视差参数来识别GAIA目录中的微透镜源星。与微晶光曲线以及微透析视差效应结合在一起,我们确定了镜头与地球的距离。我们得出的结论是,大规模镜头的这组微透镜事件的镜头是黑孔,而小型镜头是中子/白矮人候选者。

In this work, we use $13$ microlensing candidates with dark lenses from OGLE III catalogue \cite{2016MNRAS.458.3012W} and cross-match them with the GAIA catalogue. We identify the microlensing source stars in the GAIA catalogue by comparing the coordinate and the magnitude of stars and using the proper motion and the parallax parameters of the source stars. Combining with the microlensing light curves as well as the microlensing parallax effect, we determine the mass and the distance of lenses from Earth. We conclude that the lens for this set of microlensing events for the massive lenses are blackholes and for the small lenses are neutron/white dwarf candidates.

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