论文标题

基于锣仪器的小型化的紧凑型全盘太阳能磁力仪

A Compact Full-disk Solar Magnetograph based on miniaturization of GONG instrument

论文作者

Gosain, Sanjay, Harvey, Jack, Martinez-Pillet, Valentin, Woods, Tom, Hill, Frank

论文摘要

设计紧凑的仪器是较小的航天器(例如Cupesats或Deep Space Missions)进行科学探索的关键。这样的任务需要紧凑的仪器设计才能具有最小的仪器质量。在这里,我们提供了全球振荡网络组锣工具的小型化概念证明。 Gong仪器通常使用Ni 676 nm吸收系列获得太阳能光球的太阳能全磁盘多普勒和磁场图。锣光学设计小型化的一个关键概念是用窄带干扰滤波器替换笨重的Lyot滤波器,并降低进料望远镜的长度。我们通过数值建模以及概念观察证明对概念进行了验证。

Designing compact instruments is the key for the scientific exploration by smaller spacecrafts such as cubesats or by deep space missions. Such missions require compact instrument designs to have minimal instrument mass. Here we present a proof of concept for miniaturization of the Global Oscillation Network Group GONG instrument. GONG instrument routinely obtains solar full disk Doppler and magnetic field maps of the solar photosphere using Ni 676 nm absorption line. A key concept for miniaturization of GONG optical design is to replace the bulky Lyot filter with a narrow-band interference filter and reduce the length of feed telescope. We present validation of the concept via numerical modeling as well as by proof of concept observations.

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