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中国科学院国家天文台科研人员利用ALMA数据揭示高红移引力透镜星系的恒星形成尺度和速度结构（图）
中国科学院国家天文台 ALMA数据 高红移 引力透镜 星系 恒星形成尺度 速度结构
2020/6/16
近日，国家天文台中智天文联合研究中心程诚和计算宇宙学团组曹潇月领导的合作研究团队对ALMA望远镜观测到的一个高红移被引力透镜化的极亮红外星系 (Ultraluminous infrared galaxy, ULIRG)进行分析，发现这个高红移星系正经历着剧烈的恒星形成过程。借助引力透镜建模，研究者利用星系的[NII]谱线和远红外连续谱的ALMA观测数据重构出该星系远红外波段的形态和速度分布，发现其...
ALMA reveals planet-forming potential of protoplanetary disk
ALMA planet-forming potential protoplanetary disk
2016/2/23
Astronomers struggle to understand how planets form in binary star systems. Early models suggested that the gravitational tug-of-war between two stellar bodies would send young planets into eccentric ...
ALMA finds best evidence yet for galactic merger in distant protocluster（图）
ALMA galactic merger distant protocluster
2014/12/1
Nestled among a triplet of young galaxies more than 12.5 billion light-years away is a cosmic powerhouse: a galaxy that is producing stars nearly 1,000 times faster than our own Milky Way. This energe...
Planet-forming lifeline discovered in a binary star system: ALMA examines ezekiel-like 'wheel in a wheel' of dust and gas（图）
dust gas
2014/12/1
Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected a streamer of dust and gas flowing from a massive outer disk toward the inner reaches of a binary star system. Th...