How does stellar convection impact the detection of small planets at high radial velocity precision ?

恒星对流如何影响高径向速度精度的小行星探测？

• 批准号: 362583642
• 负责人: Professor Dr. Ansgar Reiners
• 金额: --
• 依托单位: Institut für Astrophysik und Geophysik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/362583642?language=en
• 关键词: How; does; stellar; convection; impact

One of the driving forces in exoplanet research is the detection of smaller exoplanets using the radial velocity technique. To achieve this many new instruments will be built or have recently started operations. With the high precision that can be obtained with these instruments, stellar convective processes or stellar jitter that vary on levels of m/s, which is the precision required to detect an Earth-like planet, start to become significant. In this proposal we will make a significant step in understanding how stellar jitter impacts the detection of small exoplanets and how best to identify and mitigate its effect. The results of this work will maximise the scientific results from current and future exoplanet radial velocity surveys.

系外行星研究的驱动力之一是使用径向速度技术探测较小的系外行星。 为了实现这一目标，许多新的仪器将被建造或最近已开始运作。 随着这些仪器可以获得的高精度，恒星对流过程或恒星抖动在m/s的水平上变化，这是探测类地行星所需的精度，开始变得重要。 在这项提案中，我们将在理解恒星抖动如何影响小型系外行星的探测以及如何最好地识别和减轻其影响方面迈出重要一步。 这项工作的结果将最大限度地提高当前和未来系外行星径向速度调查的科学成果。