ALMA Catches “intruder” Redhanded In Rarely Detected Stellar Flyby Event

13/01/2022 5 min Episodio 9
ALMA Catches “intruder” Redhanded In Rarely Detected Stellar Flyby Event

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Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA) made a rare detection of a likely stellar flyby event in the Z Canis Majoris (Z CMa) star system. An intruder—not bound to the system—object came in close proximity to and interacted with the environment surrounding the binary protostar, causing the formation of chaotic, stretched-out streams of dust and gas in the disk surrounding it.