Basic Study on the System of Optical Camera Arrays with Wide Field of View for Transient Astronomical Objects

本研究的主要目的是研制一套大视场光学望远镜阵列的基本系统。该望远镜阵列可以连续监测地面大范围的天空。因此，该系统可以检测出外观一般不可预测的瞬变物体。为了实现这一系统，我们需要进行以下三个方面的工作：(1)研制大视场光学望远镜；(2)研制作为力面探测器的大探测面积CCD；(3)研制海量成像数据处理软件。这项有限的资助是为了研制一台大视场光学望远镜，而我们只使用了传统的CCD和软件，我们已经研制出了5度视场、直径20厘米的折射光学望远镜。到目前为止，还没有实现过如此宽广的望远镜视野。我们首先在实验室对该望远镜进行了基本测试，然后在山顶的野外进行了第二次测试。我们观察到…更疏散的星系团，M45(或“斯巴鲁”)。我们在10秒的曝光时间内以0.1等的精度探测到了一颗12等的恒星。噪声级别对应于60E，但现在已改进为30E。任何天空图像都可以在没有机械移动系统的情况下拍摄，但焦平面上的天空图像可以通过LCD的电子系统进行跟踪，5度以内的图像是清晰的湖泊，精度为几角秒。在CCD驱动系统中，我们开发了一套基于TDI的驱动系统。这样，我们就可以在没有望远镜移动系统的情况下，在野外拍摄到清晰的图像。现在的光学望远镜有一套新系统。因此，我们提出了一项通用专利。如果我们将来制造一个由100个或更多望远镜组成的望远镜阵列，我们可以监测一个天体的天空。虽然我们已经达到了要开发的主要目标，但我们还需要开发另外两个项目来进行未来的研究，即(1)大视场的CCD和(2)处理海量成像数据的软件。较少

The main object of this research is to develop a basic system of the optical telescope array with wide field of view. This telescope array can monitor wide field of sky on the ground continuously. Therefore, this system can detect the transient objects whose appearance are not predictable in general. We have to develop three items in order to realize this system as follows ; that is, (1) to develop an optical telescope with wide field of view, (2) to develop a CCD with large detection area as a forcal plane detector and (3) to develop the software for processing mass imaging data. This limited grant is to develop an optical telescope with wide field of view, while we used only conventional CCD and software.We have develop the refractive optical telescope with a field of 5 degrees and 20 cm in diameter. Such wide field of telescope has not been realized so far. We have done basic tests of this telescope firstly in the laboratory and secondary in the fields on Mt.Yatsugatake. We observed … More an open cluster, M45 (or "Subaru"). We detected a 12 magnitude star with a precision of 0.1 magnitude in 10 second exposure time. The noise level corresponded to 60e, but now it has been improved to be 30e. Any sky image can be taken without mechanical moving system, but the sky image on the focal plane can be followed with electronics system of CCD.The image within 5 degrees are lake clearly with a precision of a few arc seconds. We have developed a driving system with TDI in the CCD driving system. Thus we could take a clear image in the fields without moving system for the telescope. The present optical telescope has a new system. Therefore we have proposed a patent for general usage. if we make a telescope array consisting of 100 telescopes or more in future, we can monitor the sky of one steradian.Although we have achieved the main object to be developed, we have to develop other two items for futute study ; that is, (1) CCD with a wide field of view and (2) software for processing mass imaging data. Less