Research related to detection of exo-Earth by Terra Hunting Experiment

泰拉狩猎实验探测地外相关研究

• 批准号: 1641620
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1641620
• 关键词: Research; related; detection; exo; Earth

In the past two decades we have acquired a wealth of knowledge about the structure and the occurrence of planetary systems. Despite this large success, no Earth "twin" has yet been detected. The challenge in exploring Earth-twin regime is obviously related to the technical difficulty to reach the adequate precision. To make progress we are installing a fully dedicated facility equipped with a state-of-the art precise spectrograph (HARPS-3) on the Isaac Newton telescope (INT). To reach the goal of the experiment, new developments are needed on detector calibration, analysis of the radial velocity and correction of the stellar noise. The first work of the PhD student will be first to setup a calibration bench to measure its detailed geometric structure. Then his work will be directed towards preparatory work about data interpretation , stellar correction and target selection. In addition the first light of the instrument is expected in less than 3 years, providing a chance to the PhD student to take an active part in the commissioning and early science results.

在过去的二十年里，我们获得了关于行星系统的结构和发生的丰富知识。尽管取得了巨大的成功，但还没有探测到地球的“孪生兄弟”。探索地球孪生体系的挑战显然与达到足够精度的技术难度有关。为了取得进展，我们正在艾萨克·牛顿望远镜(INT)上安装一个完全专用的设施，配备了最先进的精密光谱仪(HARPS-3)。为了达到实验目标，需要在探测器定标、径向速度分析和恒星噪声校正等方面取得新的进展。这位博士生的第一项工作将是首先建立一个校准平台来测量其详细的几何结构。然后，他的工作将针对数据解释、恒星校正和目标选择的准备工作。此外，该仪器预计在不到3年内首次亮相，为博士生提供一个积极参与调试和早期科学成果的机会。

项目成果

On the Feasibility of Intense Radial Velocity Surveys for Earth-Twin Discoveries

关于孪生地球发现的密集径向速度调查的可行性

• DOI: 10.1093/mnras/sty1464
• 发表时间: 2018
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Hall R