Thursday, July 10, 2025

Binary Stars Out of Sync: One Hosts a Giant Planet, While its Companion is Still Forming Planet

These images show the newly discovered exoplanet HD 135344 Ab with a yellow dot on the right side of the image. Astronomers measured the star four times: twice in 2019, then again in 2021 and 2022, with the VLT and its instruments. The empty purple circle with the star in the middle indicates the location of the corresponding star. This star was filtered out, first by a coronograph and further by digital post-processing. The dashed line represents the planet's orbit. Credit: Stolker et al. 2025 A&A

A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star whose planet formation has finished, while a same-aged companion star in this double star system still has a planet-forming disk.



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