The Evryscope: the first full-sky gigapixel-scale telescope

Evryscope：第一台全天空十亿像素级望远镜

• 批准号: 1407589
• 负责人: Nicholas Law
• 金额: $ 46.25万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-08-15 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1407589&HistoricalAwards=false
• 关键词: Evryscope; first; full; sky; gigapixel

Astronomy traditionally deals with precise and detailed observations of celestial objects taken one at a time. A complementary approach is becoming more important, which is to patrol large areas of sky over substantial intervals of time, and a wide range of important science is enabled by this approach. The "Evryscope" robotic telescope being built under this project covers a very wide field of view on the sky, using an array of twenty-three individual apertures of 7 cm diameter, each outfitted with large-format detectors. This telescope will produce a complete record of Northern sky events, and will be able to monitor the light output from all Northern stars, down to significantly faint levels. By these observations, sensitive searches for planets around other stars will be carried out, as well as studies of stellar outbursts and activity. The system will also be sensitive to the famous gamma-ray burst (GRB) sources, nearby supernovae, and possible counterparts to any gravitational wave detections that might be made by gravitational wave observatories now in operation.Evryscope utilizes 29 Megapixel imagers on each individual telescope, and each covers 394 square degrees of field. The design sensitivity is such that Northern sky events down to 19th magnitude will be monitored. Light curves of better than 1% precision, with high cadence and many years' duration, will be obtained for every Northern star brighter than 16th magnitude. The system will be capable of detecting transiting exoplanets around every solar-type star brighter than 12th magnitude, providing at least few-millimagnitude photometric precision in long-term light curves. Around the brightest and closest stars it is expected to double the known number of transiting hot Jupiters. The Evryscope will also search for small planets transiting nearby M-dwarfs, for planetary occultations of white dwarfs, and will perform eclipse-timing searches for exoplanets around exotic stellar systems inaccessible to other planet-finding methods.This project will integrate undergraduates into the research program, and plans an innovative collaboration with planetariums to create zoom-able images of the sky that will involve the general public in astronomical research.Funding for this project is being provided by NSF's Division of Astronomical Sciences through its Advanced Technologies and Instrumentation program.

传统上，天文学处理一次对天体物体的精确和详细的观察。 一种互补的方法变得越来越重要，即在大量的时间间隔内巡逻大面积的天空，这种方法可以实现广泛的重要科学。 在此项目下建造的“ Evryscope”机器人望远镜覆盖了天空的广阔视野，使用了23个单独的孔径为7厘米，每个孔径为7厘米，每个孔都配备了大型探测器。 该望远镜将产生北方天空事件的完整记录，并能够监视所有北部恒星的光输出，从而达到明显微弱的水平。 通过这些观察，将对其他恒星周围的行星进行敏感搜索，并研究出色的爆发和活动。 该系统还将对著名的伽马射线爆发（GRB）来源，附近的超新星敏感，并且可能与现在正在操作中的引力波观测器所做的任何引力波检测相对应。Evryscope.evryscope。 设计敏感性使得将监视北方天空事件，以下至19级。 每个北极星的光曲线高于1％的精度，高节奏且持续很多年，比16级要获得的光曲线将获得。 该系统将能够检测到每个太阳能恒星周围的传输外行星比12级明亮，从而在长期光曲线中至少提供至少毫米型光度的光度学精度。在最亮，最接近的恒星周围，预计它将是已知的过境热木星数量的两倍。 evryscope还将寻找在附近M-dwarfs的小星球，以进行白色矮人的行星掩体，并将在围绕异国情调的恒星系统周围进行日食的搜索，无法与其他行星捕捞方法相关联。 NSF的天文学科学部通过其先进的技术和仪器计划提供了该项目的资金。