论文标题
使用抛光式偏振计的十年线性和圆极光计
A Decade of Linear and Circular Polarimetry with the POLISH2 Polarimeter
论文作者
论文摘要
自2011年以来，Polish2光学仪表仪一直在Lick天文台3-M Shane望远镜上运行，并于2016年在Gemini North 8-M上进行了委托。该仪器主要针对外型球形，小行星和蟹豆脉冲星，但它也用于多种星球，银河系和超级诺夫河科学。 Polish2的光弹性调节器代替旋转波动板或铁电液晶调节剂，具有前所未有的能力，可以实现1 ppm（0.0001％）的灵敏度和准确性，而常规极性仪很难获得。此外，PORIS2同时测量强度（Stokes I），线性极化（Stokes Q和U）和圆极化（Stokes V），该圆极化（Stokes V）充分描述了入射光的极化状态。我们记录了我们的实验室和天上校准方法，我们的档案数据库，并证明了对某些物体的循环极化的结论性检测。
The POLISH2 optical polarimeter has been in operation at the Lick Observatory 3-m Shane telescope since 2011, and it was commissioned at the Gemini North 8-m in 2016. This instrument primarily targets exoplanets, asteroids, and the Crab pulsar, but it has also been used for a wide variety of planetary, galactic, and supernova science. POLISH2's photoelastic modulators, employed instead of rotating waveplates or ferro-electric liquid crystal modulators, offer the unprecedented ability to achieve sensitivity and accuracy of order 1 ppm (0.0001%), which are difficult to obtain with conventional polarimeters. Additionally, POLISH2 simultaneously measures intensity (Stokes I), linear polarization (Stokes Q and U), and circular polarization (Stokes V), which fully describe the polarization state of incident light. We document our laboratory and on-sky calibration methodology, our archival on-sky database, and we demonstrate conclusive detection of circular polarization of certain objects.
