arXiv 1809.010482018-09astro-ph.EP

HATS-60 b- HATS-69 b：来自HAT南的十颗凌日行星

HATS-60b - HATS-69b: Ten Transiting Planets From HATSouth

J. D. Hartman, G. A. Bakos, D. Bayliss, J. Bento, W. Bhatti, R. Brahm, Z. Csubry, N. Espinoza, Th. Henning, A. Jordán, L. Mancini, K. Penev, M. Rabus, P. Sarkis… 展开作者

J. D. Hartman, G. A. Bakos, D. Bayliss, J. Bento, W. Bhatti, R. Brahm, Z. Csubry, N. Espinoza, Th. Henning, A. Jordán, L. Mancini, K. Penev, M. Rabus, P. Sarkis, V. Suc, M. de Val-Borro, G. Zhou, B. Addison, P. Arriagada, R. P. Butler, J. Crane, S. Durkan, S. Shectman, T. G. Tan, I. Thompson, C. G. Tinney, D. J. Wright, J. Lázár, I. Papp, P. Sári

备注：: Replaced with version accepted for publication in AJ, some changes to parameter values compared to previous version, 41 pages, 12 figures, 19 Tables
DOI：: 10.3847/1538-3881/aaf8b6

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摘要：

我们报告了10个过境太阳系外行星的发现HATSouth调查。这些行星的质量范围从超级海王星HATS-62 b（含$M_{p} < 0.179 M_{J}$）到超级木星HATS-66 b（含$M_{p} = 5.33 M_{J}$），大小范围从土星HATS-69 b（含$R_{p} = 0.94 R_{J}$）到膨胀的木星HATS-67 b（含$R_{p} = 1.69 R_{J}$）。这些行星的轨道周期在1.6092天（HATS-67 b）和7.8180天（HATS-61 b）之间。主星是矮星，质量从$0.89 M_{\odot}$（HATS-69）到$1.56 M_{\odot}$（HATS-64）不等，视星等介于$V = 12.276 \pm 0.020$等（HATS-68）和$V = 14.095 \pm 0.030$等（HATS-66）之间。超级海王星HATS-62 b是迄今为止发现的质量最小的行星，半径大于木星。主要基于盖亚DR 2的距离和宽带测光，我们确定了三个系统（HATS-62，-64和-65）可能有未解决的双星同伴。我们详细讨论了我们的方法，将盖亚DR 2观测到我们的系统参数建模，并到我们的混合分析程序。

英文摘要：

We report the discovery of ten transiting extrasolar planets by the HATSouth survey. The planets range in mass from the Super-Neptune HATS-62b, with $M_{p} < 0.179 M_{J}$, to the Super-Jupiter HATS-66b, with $M_{p} = 5.33 M_{J}$, and in size from the Saturn HATS-69b, with $R_{p} = 0.94 R_{J}$, to the inflated Jupiter HATS-67b, with $R_{p} = 1.69 R_{J}$. The planets have orbital periods between 1.6092 days (HATS-67b) and 7.8180 days (HATS-61b). The hosts are dwarf stars with masses ranging from $0.89 M_{\odot}$ (HATS-69) to $1.56 M_{\odot}$ (HATS-64), and have apparent magnitudes between $V = 12.276 \pm 0.020$ mag (HATS-68) and $V = 14.095 \pm 0.030$ mag (HATS-66). The Super-Neptune HATS-62b is the least massive planet discovered to date with a radius larger than Jupiter. Based largely on the Gaia DR2 distances and broad-band photometry, we identify three systems (HATS-62, -64, and -65) as having possible unresolved binary star companions. We discuss in detail our methods for incorporating the Gaia DR2 observations into our modeling of the system parameters, and into our blend analysis procedures.

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