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总结
多家外媒报道,天文学家首次对一颗“流浪行星”(不绕恒星运行的自由漂浮行星)同时测得质量与距离。该天体大小接近土星,位于距地球约1万光年的银河系区域。研究团队通过对观测数据的联合分析,在以往多只能推断其存在或仅估算部分参数的情况下,给出了更可核验的物理量。成果有助于改进对流浪行星形成机制与数量分布的认识,并为后续大规模巡天中识别此类罕见目标提供标定参考。
正文
Astronomers measure both mass and distance of a rogue planet for the first time Phys.org Scientists Just Clocked a 'Rogue' Planet the Size of Saturn Scientific American Astronomers detect rare 'free floating' exoplanet 10,000 light-years from Earth Space Rare Saturn-sized rogue planet is first to have its mass measured New Scientist Astronomers measure mass and distance of free-floating planet Astronomy Magazine
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