OGLE-2013-BLG-0132Lb和OGLE-2013-BLG-1721Lb：在M型矮星周围发现的两颗土星质量行星
地球与行星天体物理
2017-11-08 v2
摘要
我们报告了由两个由M型矮星环绕的土星质量行星组成的行星系统的发现，它们是在微引力透镜暗事件OGLE-2013-BLG-0132和OGLE-2013-BLG-1721中探测到的。行星异常由OGLE和MOA测光巡天以高节奏覆盖。光变曲线建模表明行星与宿主质量比分别为和。两个事件都太短且太暗而无法测量可靠的视差信号并进而确定透镜质量。因此我们采用贝叶斯分析估计了两颗行星的质量：（OGLE-2013-BLG-0132Lb）和（OGLE-2013-BLG-1721Lb）。得益于高相对自行，OGLE-2013-BLG-0132是高分辨率成像后续观测的有力候选。两颗行星都属于围绕M型矮星在雪线之外运行的亚木星质量行星的不断增加样本。
引用
@article{arxiv.1705.01058,
title = {OGLE-2013-BLG-0132Lb and OGLE-2013-BLG-1721Lb: Two Saturn-mass Planets Discovered around M-dwarfs},
author = {Przemek Mroz and A. Udalski and I. A. Bond and J. Skowron and T. Sumi and C. Han and M. K. Szymanski and I. Soszynski and R. Poleski and P. Pietrukowicz and S. Kozlowski and L. Wyrzykowski and K. Ulaczyk and F. Abe and Y. Asakura and R. K. Barry and D. P. Bennett and A. Bhattacharya and M. Donachie and P. Evans and A. Fukui and Y. Hirao and Y. Itow and N. Koshimoto and M. C. A. Li and C. H. Ling and K. Masuda and Y. Matsubara and Y. Muraki and M. Nagakane and K. Ohnishi and C. Ranc and N. J. Rattenbury and To. Saito and A. Sharan and D. J. Sullivan and D. Suzuki and P. J. Tristram and T. Yamada and T. Yamada and A. Yonehara},
journal= {arXiv preprint arXiv:1705.01058},
year = {2017}
}
备注
Accepted to AJ