The Design and Implementation of Astronomical Multi-catalog Storage and Cross-match Based on Hadoop

摘要

With the development of astronomical observation techniques, telescopes around the world continue to release new spectral data. Due to the difference of geographical location and performance of variable telescopes, the catalog data contain different location information and different band information. In order to provide astronomers with more comprehensive astronomical information, celestial information of multi-band needs to be cross-matched. It's necessary to use distributed and parallel computing techniques to process massive astronomical data. In this paper, we propose a solution to store and cross-match multi-catalog astronomical data.