Atmospheric heating in low-mass solar-like stars: A Multi-wavelength study of stellar atmospheres using ASTROSAT and TIGRE

低质量类太阳恒星的大气加热：使用 ASTROSAT 和 TIGRE 对恒星大气进行多波长研究

• 批准号: 323617461
• 负责人: Professor Dr. Jürgen H.M.M. Schmitt
• 金额: --
• 依托单位: Hamburger Sternwarte
• 依托单位国家: 德国
• 项目类别: Research Grants
• 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/323617461?language=en
• 关键词: Atmospheric; heating; low; mass; solar

In response to the call for collaborative activities between Indian and German investigators by The Department of Science and Technology (DST) and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) we propose to start a collaboration between astronomers at the Indian Institute for Astrophysics (IAA) in Bengaluru and at the Tata Institute for Fundamental Research and at Hamburg Observatory to pursue multiwavelength observations of solar-like late-type stars with the Indian X-ray satellite ASTROSAT and the robotic TIGRE telescope operated by Hamburg Observatory. We specifically want to start a sample of nearby, solar-like, but rapidly rotating stars in order to characterize their chromospheric and coronal properties by conducting simultaneous X-ray and optical observations. We further want to study archival X-ray data of these sample source and compare those with the ASTROSAT data and explore the science possibilities to conduct joint eROSITA and ASTROSAT observations and carry out simulations of possible observing programs.

为了响应科学技术部（DST）和德国研究基金会（DFG，德国研究基金会）对印度和德国研究人员之间开展合作活动的号召，我们建议班加罗尔的印度天体物理研究所（IAA）、塔塔基础研究所和汉堡天文台的天文学家之间开始合作，以追求多波长 利用印度 X 射线卫星 ASTROSAT 和汉堡天文台运行的机器人 TIGRE 望远镜对类太阳晚型恒星进行了观测。 我们特别想要开始采集附近类似太阳但快速旋转的恒星样本，以便通过同时进行 X 射线和光学观测来表征它们的色球层和日冕特性。 我们还希望研究这些样本源的档案 X 射线数据，并将其与 ASTROSAT 数据进行比较，探索进行 eROSITA 和 ASTROSAT 联合观测的科学可能性，并对可能的观测计划进行模拟。