【摘要】 虚拟天文台是在望远镜和探测器的研制技术、计算机网络技术取得突破性进展的条件下产生的,与最新的信息技术紧密结合成为其发展最鲜明的特点。用可扩展标记语言(简称XML)技术封装天文数据,把虚拟天文台建立在网格的体系结构之上是当今虚拟天文台技术发展的主流。按照目前虚拟天文台最具代表性的层次式体系结构分层介绍各个层次的相关技术,同时提出充分利用现有资源优势实施中国虚拟天文台计划的设想。更多还原

【Abstract】 The project of Virtual Observatory (VO) is the result of breakthroughs in telescope, detector, computer and Internet technologies. The combination with the new information technology is the major characteristic of the VO development. Extensible markup language (XML) and Grid as two trends of information technology will be adopted widely in the VO. XML and the related technologies are used for information storage and exchanging within the VO. The VO architecture is based upon the standard layered architecture of Grid. In the paper, technologies related in each layer of the VO architecture are introduced. The global virtual observatory provides new chances for Chinese astronomy. Using the abundant resources in the Internet and chances provided by open-source software, Chinese astronomers should cooperate with national IT experts and push the virtual observatory projects of China as soon as possible.更多还原