All-Sky Automated Survey for Supernovae: Big Science with Small Telescopes

全天空超新星自动巡天：小型望远镜的大科学

• 批准号: 1515927
• 负责人: Krzysztof Stanek
• 金额: $ 63万
• 依托单位: Ohio State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-15 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1515927&HistoricalAwards=false
• 关键词: Sky; Automated; Survey; Supernovae; Big; Sky; Automated; Survey; Supernovae; Big

Even in the present day, only human eyes monitor the entire night sky. There is no optical survey that frequently images and records the entire celestial sphere, seeking out the transient, variable, and sometimes violent events that occur in our Universe. The "All-Sky Automated Survey for Supernovae" (ASAS-SN) will automatically survey the entire visible sky every other night. ASAS-SN is already producing a steady stream of important discoveries. ASAS-SN will also provide a critical training ground for the next generation of time-domain astronomers, a field that will eventually be transformed by the Large Synoptic Survey Telescope.The major scientific goal of this proposal is to significantly enhance our understanding of supernovae, both core-collapse and thermonuclear. This team will complete an unbiased census of bright, nearby supernovae, and they will study these events and their hosts in detail. ASAS-SN is currently making more than 50% of all the bright (17 mag) SNe discoveries and recovering most of the rest. Bright and nearby SNe, discovered early by this high-cadence survey, are especially valuable, as they and their host galaxies are easy to study using small (1-2m) telescopes. ASAS-SN should lead to new, unbiased derivations of supernova rates and a better understanding of supernova properties as a function of stellar age and metallicity. This survey will be publicly releasing data, already including a transient list, just released "ASAS-SN CV Patrol", and future "ASAS-SN Patrols" of continuously updated light curves for other interesting classes of objects. All-sky catalogues of variable stars will be gradually released as well.

即使在今天，只有人类的眼睛监视整个夜空。 没有光学调查经常图像并记录整个天体球体，从而寻找宇宙中发生的瞬态，可变，有时是暴力事件。 “ ASAS-SN”（ASAS-SN）将每隔晚上自动调查整个可见天空。 ASAS-SN已经在产生稳定的重要发现。 ASAS-SN还将为下一代时间域天文学家提供关键的训练理由，该领域最终将通过大型的天气调查望远镜进行转化。该提议的主要科学目标是显着增强我们对超新星的理解，包括核心偏离和热核。该团队将完成一项无偏见的Supernovae的无偏人口普查，他们将详细研究这些事件及其主人。 ASAS-SN目前正在占所有明亮（17 MAG）SNE发现的50％以上，并恢复其余的大部分。通过这项高级调查提早发现的明亮和附近的SNE特别有价值，因为它们和他们的宿主星系易于使用小型（1-2M）望远镜研究。 ASAS-SN应导致超新星率的新的，公正的推导，并更好地理解超新星特性，这是恒星年龄和金属性的函数。这项调查将公开发布数据，其中包括瞬态列表，刚刚发布的“ ASAS-SN CV巡逻”以及未来的“ ASAS-SN巡逻”，该数据连续更新了其他有趣的对象类别的光曲线。可变恒星的所有天空目录也将逐渐发布。