The Atacama Large Millimeter/submillimeter Array (ALMA) has made the first ever resolved observation of a water snow line within a protoplanetary disc. This line marks where the temperature in the disc surrounding a young star drops sufficiently low for snow to form. A dramatic increase in the brightness of the young star V883 Orionis flash heated the inner portion of the disc, pushing the water snow line out to a far greater distance than is normal for a protostar, and making it possible to observe it for the first time. The results are published in the journal Nature on 14 July 2016.
Le communiqué, les images et les vidéos sont disponibles sur :
http://www.eso.org/public/news/eso1626/
Amicalement,
Le service Education et Diffusion de la Culture Scientifique de l'ESO
13 juillet 2016
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