论文标题
GAIA DR3和多普勒数据的系外行驶轨道的联合限制
Joint Constraints on Exoplanetary Orbits from Gaia DR3 and Doppler Data
论文作者
论文摘要
第三个GAIA数据发布包括通过星体运动标识的系外行星和系外行星候选者的目录。本文报告了Gaia两体轨道溶液和精确多普勒速度之间一致性的测试，目前可以进行这种比较。对于BD 17-0063，HD 81040和HD 132406，发现Gaia Orbital溶液和多普勒数据是一致的，并共同拟合以获得对行星轨道和质量的最佳约束。发现了4颗星的不一致：HD 111232，可能是由于未包括在天文模型中的其他行星。 HD 175167和HR 810，可能是由于对Gaia轨道溶液中非高斯不确定性的治疗不准确； and HIP 66074, for unknown reasons.还针对HD 114762进行了一致性测试，该测试在1989年据报道具有棕色矮人或系外行星，但此后已被证明是二进制恒星。联合GAIA多普勒分析表明，次级质量为0.215 +/- 0.013 MSUN，轨道倾斜度为3.63 +/- 0.06度。
The third Gaia data release includes a catalog of exoplanets and exoplanet candidates identified via the star's astrometric motion. This paper reports on tests for consistency between the Gaia two-body orbital solutions and precise Doppler velocities, for the stars currently amenable to such a comparison. For BD 17-0063, HD 81040, and HD 132406, the Gaia orbital solution and the Doppler data were found to be consistent, and were fitted jointly to obtain the best possible constraints on the planets' orbits and masses. Inconsistencies were found for 4 stars: HD 111232, probably due to additional planets that were not included in the astrometric model; HD 175167 and HR 810, possibly due to inaccurate treatment of non-Gaussian uncertainties in the Gaia orbital solutions; and HIP 66074, for unknown reasons. Consistency tests were also performed for HD 114762, which was reported in 1989 to have a brown dwarf or exoplanet but has since been shown to be binary star. The joint Gaia-Doppler analysis shows the secondary mass to be 0.215 +/- 0.013 Msun and the orbital inclination to be 3.63 +/- 0.06 degrees.
