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  "dek": "中新网北京9月16日电 (记者 孙自法)中国科学院国家天文台9月16日发布消息说，依托“中国天眼”(500米口径球面射电望远镜，英文缩写FAST)超高探测灵敏度，国家天文台韩金林研究员领衔的FAST银道面脉冲星巡天团队，最新研究发现一颗处于紧致轨道的双中子星系统PSRJ1856-0039，这也是轨道周期极短、目前已知总质量最轻的双中子星系统。",
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