planet formation tagged posts

Astronomers discover ‘young Jupiter’ exoplanet

 

One of the best ways to learn how our solar system evolved is to look to younger star systems in the early stages of development. Now, a team of astronomers has discovered a Jupiter-like planet within a young system that could serve as a decoder ring for understanding how planets formed around our sun. The first planet detected by the Gemini Planet Imager is 100 light-years away but shares many of the characteristics of an early Jupiter.

The new planet, called 51 Eridani b, is the first exoplanet discovered by the Gemini Planet Imager, a new instrument operated by an international collaboration headed by  Professor Bruce Macintosh...

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Astronomers see Ring of Rocks Circling Very Young Star




These ‘pebbles’ detected for 1st time: crucial link in building planets. Since1990s, astronomers have found both disks of gas and dust, and nearly 2000 fully formed planets, but the intermediate stages of formation are harder to detect.

Dr Greaves and Dr Anita Richards from Manchester University used e-MERLIN array of radio telescopes centred on Jodrell Bank, Cheshire, and that stretches across England in an interferometer, mimicking resolution of a single large telescope. They observed the star DG Tauri, a youthful star just 2.5 million years old and 450 light years away in constellation of Taurus. Looking at radio wavelengths, they discovered a faint glow characteristic of rocks in orbit around the newly formed star.

An artist's impression of the belt of ‘pebbles’ in orbit around the star DG Tauri. The inset is a close up view of a section of the belt.

An artist’s imp...

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