论文标题

empol:基于EMCCD的光学成像偏光仪

EMPOL: an EMCCD based optical imaging polarimeter

论文作者

Ganesh, Shashikiran, Rai, Archita, K, Aravind, Singh, Alka, Prajapati, Prachi Vinod, Mishra, Ashish, Kasarla, Prashanth, Sarkar, Deekshya Roy, Patwal, Pitamber Singh, Uppal, Namita, Chandra, Sunil, Mathur, Satyanarain, Shah, Amish B, Baliyan, Kiran S, Joshi, U C

论文摘要

Andor 1K $ \ times $ 1K EMCCD检测器已用于开发光学成像偏振仪,以在PRL的1.2 m望远镜的Cassegrain焦点上使用。光学元件源自较旧的单元素检测器仪器,由旋转的半波板作为调节器和寄养棱镜作为分析仪组成。该仪器的视野为3 $ \ times $ 3平方英尺。我们描述了本文档中的仪器和观察方法。该仪器涵盖了各种各样的来源,已经进行了广泛的观察结果。接近地球的小行星,彗星,leynds黑星云,开放群集和agn(例如Blazars)。在当前的通信中,我们讨论了初始校准运行的一些结果,而其他结果将在其他地方呈现。

An Andor 1K $\times$ 1K EMCCD detector has been used to develop an optical imaging polarimeter for use at the Cassegrain focus of 1.2 m telescope of PRL. The optics is derived from an older single-element detector instrument and consists of a rotating half-wave plate as modulator and a Foster prism as an analyser. The field of view of the instrument is 3 $\times$ 3 sq arcmin. We describe the instrument and the observational methodology in this document. Extensive observations have been carried out with this instrument covering a large variety of sources e.g. near-Earth asteroids, comets, Lynds dark nebulae, open clusters and AGN such as blazars. In the current communication, we discuss some results from the initial calibration runs while the other results will be presented elsewhere.

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