Endeavor for the detection of Oort Cloud objects

Abstract

The Oort Cloud,the origin of long-period comets,distributes spherically with a semi-major axis of tens of thousands of AU,but is not confirmed through observations. We attempt the detection of Oort Cloud objects approaching the planetary region. Our estimations suggest that one such object can be detected per 14 square degree. We developed a method of analysis to efficiently pick up moving objects,and have searched through the archived data taken with Suprime-Cam on the Subaru Telescope. New moving objects,distant from the ecliptic plane were detected,and their orbital elements are discussed.