论文标题

轨道倾斜度和系外行星候选人的质量

Orbital inclination and mass of the exoplanet candidate Proxima c

论文作者

Kervella, Pierre, Arenou, Frédéric, Schneider, Jean

论文摘要

我们分析了Damasso等人最近发现的系外行星候选Proxima C的轨道参数。 (2020)使用其光谱轨道参数和GAIA DR2的合并适当的运动异常。我们获得了$ i = 152 \ pm 14°$的轨道倾斜度,对应于$ m_c = 12^{+12} _ { - 5} \ m_ \ oplus $的行星质量,可与王国或赤脉相当。虽然派生的轨道参数太不确定了,无法准确预测给定时期的行星位置,但我们在未来几年中介绍了其与其母星相对与母体相对的概率的地图。

We analyse the orbital parameters of the exoplanet candidate Proxima c recently discovered by Damasso et al. (2020) using a combination of its spectroscopic orbital parameters and Gaia DR2 proper motion anomaly. We obtain an orbital inclination of $i = 152 \pm 14 °$ for the prograde solution, corresponding to a planet mass of $m_c = 12^{+12}_{-5}\ M_\oplus$, comparable to Uranus or Neptune. While the derived orbital parameters are too uncertain to predict accurately the position of the planet for a given epoch, we present a map of its probability of presence relatively to its parent star in the coming years.

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