Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have detected gaseous water in the planet-forming disc around the star V883 Orionis. This water carries a chemical signature that explains the journey of water from star-forming gas clouds to planets, and supports the idea th
) is a partner, to measure chemical signatures of the water and its path from the star-forming cloud to planets.
This diagram illustrates how a cloud of gas collapses to form a star with a disc around it, out of which a planetary system will eventually form. Credit: ESO/L. Calçada Zooming on the young star V883 Orionis. This star is currently in outburst, which has pushed the water snow line further from the star and allowed it to be detected for the first time with ALMA.
This artist’s impression shows the planet-forming disc around the star V883 Orionis. In the outermost part of the disc water is frozen out as ice and therefore can’t be easily detected. An outburst of energy from the star heats the inner disc to a temperature where water is gaseous, enabling astronomers to detect it. Credit: ESO/L. Calçada
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