Study on Magnetic structure in Galaxies by Polarimetric Observation

1)偏振观测是揭示外星系磁结构的重要和关键。为了对星系进行系统的偏振观测，我们从UGC星表中根据星系的大小和中心亮度选择了71个星系，这影响了星系中精确的偏振探测。2)我们在冈山天体物理观测站使用了Okayama光学偏振和光谱测量系统(OOPS)进行了偏振观测。用面向对象的方法得到的CCD偏振雷达已存储在CD-ROM中，作为星系中磁场偏振研究的基础数据库。3)我们开发了一个“指南启动搜索系统”，使偏振观测比以往任何时候都更容易和更可靠。多亏了这个导航系统，我们可以对这么多星系进行偏振观测(参考文献1)。我们用夏威夷莫纳克亚的斯巴鲁望远镜进行了偏振观测能力的研究。我们展示了我们可以使用FOCAS仪器对外部星系进行偏振观测(参考文献2和3)。

1) Polarimetric Observation is important and key to reveal the magnetic structure in external galaxies. In order to conduct systematic polarimetric observation of galaxies for that purpose, we selected 71 galaxies from UGC catalog according to their sizes and central brightness in galaxies, which affect precise polarization detection in galaxies.2) We conducted polarimetric observations using Okayama Optical Polarimetry and Spectrometry system (OOPS) at Okayama Astrophysical Observatory. CCD polarimetric dara obtained with OOPS have been stored in CD-ROM as a basic data-base for polarimetric study on magnetic fileds in galaxies.3) We developped a "Guide Start Search System", which makes polarimetric observation much easier and more reliable than ever. With thanks of this guiding system, we can performed our polarimetric observation of so many galaxies (Reference #1).We performed study on capability of polarimetric observation with the SUBARU telescope at Mauna Kea, Hawaii. We show we can carry polarimetric observation of external galaxies using the FOCAS instrument (Reference _<2 and >3).