Does this Exoplanet have a “Sibling” Sharing the Same Orbit? | ESO

Does this Exoplanet have a “Sibling” Sharing the Same Orbit? | ESO

ESOcast 263 Light: Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have found  the possible ‘sibling’ of a planet orbiting a distant star. This video summarizes the discovery. The system features a star at its center, around which the planet PDS 70b (highlighted with a solid yellow circle) is orbiting. On the same orbit as PDS 70b, indicated by a solid yellow ellipse, astronomers have detected a cloud of debris (circled by a yellow dotted line) that could be the building blocks of a new planet or the remnants of one already formed. The ring-like structure that dominates the image is a circumstellar disc of material, out of which planets are forming. There is in fact another planet in this system: PDS 70c, seen at 3 o’clock right next to the inner rim of the disc.

Credit: European Southern Observatory (ESO)

Directed by: Angelos Tsaousis and Martin Wallner.

Editing: Angelos Tsaousis.

Web and technical support: Gurvan Bazin and Raquel Yumi Shida.

Written by: Claudia Sciarma and Tom Howarth.

Footage and photos: ESO / L. Calçada, M. Kornmesser, Angelos Tsaousis, C. Malin ( christophmalin.com ), ALMA (ESO/NAOJ/NRAO)/UHD Team/Balsalobre-Ruza et al.

Scientific consultant: Paola Amico, Mariya Lyubenova.

Duration: 1 minute, 28 seconds

Release Date: July 19, 2023

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