Stellar stream in Gaia DR2 discovery

We report the discovery of a large, dynamically cold, coeval stellar stream that is currently traversing the immediate solar neighborhood at a distance of only 100pc. The...本研究报道了一个大型、动力学冷（dynamically cold）、同龄（coeval）恒星流（stellar stream）的发现，该恒星流目前正以仅100秒差距（parsec，pc）的距离穿越紧邻的太阳邻域（solar neighborhood）。该……