Stellar Rotation with ZTF and Rubin

首席调查人员(PI)安格斯和柯蒂斯正在研究冷矮星，这是银河系中最常见、最鲜为人知的恒星。他们将使用兹维基瞬变设备(ZTF)的数据来测量大约10万颗恒星的自转周期，以了解恒星的自转历史和演化。在M矮星的自转周期分布上有一个神秘的缺口，他们希望能阐明它的起源。它可能是由恒星结构或磁性的变化引起的，也可能是由于当地恒星形成的历史造成的。他们将创建和分发一个恒星自转目录，该目录将提供适合于校准恒星年龄-自转关系的数据。这为未来利用维拉·C·鲁宾天文台的数据进行调查奠定了基础，该天文台有可能确定数十亿颗恒星的年龄。PI将与六名天文学家和六名艺术家合作，开发关于ZTF和鲁宾天文台的科学故事。这些故事将作为美国自然历史博物馆SCICAFE公共项目的一部分在线提供。PI将分析ZTF观测到的100万颗恒星的数据，他们将发布大约10万颗FGKM矮星的自转周期目录，距离3Kpc。这个星表将把场M矮星自转周期的数量增加两个数量级。PIS将提供开源软件，用于光曲线创建、多波段旋转周期检测，以及适用于ZTF和鲁宾天文台数据的验证工具。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

Principal Investigators (PIs) Angus and Curtis are studying cool dwarf stars, the most common and most poorly understood stars in the Galaxy. They will measure the rotation periods for approximately 100,000 stars using data from the Zwicky Transient Facility (ZTF) to understand the rotation history and evolution of the stars. There is a mysterious gap in the rotation period distribution of M dwarf stars and they hope to shed light on its origin. It could be caused by a change in the stellar structure or magnetism or due to the local star formation history. They will create and distribute a stellar rotation catalog which will provide data suitable for calibrating the stellar age-rotation relation. This lays the groundwork for future surveys using data from the Vera C. Rubin Observatory which has the potential to determine the ages of billions of stars. The PIs will collaborate with six astronomers and six artists to develop science stories about the ZTF and the Rubin Observatory. The stories will be available online as part of the American Museum of Natural History’s SciCafe Public Program.The PIs will analyze data for 1 million stars observed by the ZTF and they will publish a catalog of the rotation periods for approximately 100,000 FGKM dwarfs out to distances of 3 kpc. This catalog will increase the number of field M dwarf rotation periods by two orders of magnitude. The PIs will provide open-source software for light curve creation, multi-band rotation period detection, and validation tools applicable to data from both the ZTF and the Rubin Observatory.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.