A Zero Read Noise, High Speed, High Sensitivity Photometer and Polarimeter: An Instrument for the Direct Detection of Inner Extrasolar Planets and Debris Disks

零读数噪声、高速、高灵敏度光度计和旋光计：直接探测太阳系内行星和碎片盘的仪器

• 批准号: 0352989
• 负责人: Daniel Potter
• 金额: $ 29.91万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-15 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0352989&HistoricalAwards=false
• 关键词: Zero; Read; Noise; Speed; Sensitivity

AST-0352989/Potter, U. ArizonaThe award will support the development of a photometer/polarimeter that will achieve photometric accuracies as good as one part in 100,000. This is approximately a 50 times improvement over accuracies presently available with existing panoramic solid-state detector arrays (like charge coupled devices). The instrument will allow 2 meter class telescopes to achieve sufficient photometric sensitivity to detect circumstellar debris disks around the nearest stars at a level of only ten times that of our present day solar system, and to detect intensity variations caused by the changing phases of reflected light from orbiting planets. This instrument may influence future instrument designs to make the next generation of large telescopes several orders of magnitude more sensitive and efficient photon collectors.

AST-0352989/Potter，美国亚利桑那州该奖项将支持光度计/旋光计的开发，其光度测量精度可达十万分之一。与目前现有全景固态探测器阵列（如电荷耦合器件）的精度相比，这大约提高了 50 倍。该仪器将使2米级望远镜达到足够的光度灵敏度，以探测最近恒星周围的星周碎片盘，其水平仅为当今太阳系的十倍，并探测由反射光相位变化引起的强度变化来自绕轨道运行的行星。该仪器可能会影响未来的仪器设计，使下一代大型望远镜的灵敏度和效率提高几个数量级。