This baby exoplanet is made of different stuff than its birth cloud

[Admin]

Investigating a young exoplanet called PDS 70b in its cocoon of natal gas and dust has shown that planets don't always resemble the environments they form in.

This baby exoplanet is made of different stuff than its birth cloud : Read more

 

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"For observational astrophysicists, one widely accepted picture of planet formation was likely too simplified," team leader Chih-Chun "Dino" Hsu of Northwestern University said in a statement. "According to that simplified picture, the ratio of carbon and oxygen gases in a planet’s atmosphere should match the ratio of carbon and oxygen gases in its natal disk — assuming the planet accretes materials through gases in its disk. Instead, we found a planet with a carbon and oxygen ratio that is much lower compared to its disk. "Now, we can confirm suspicions that the picture of planet formation was too simplified."

My note. Interesting report here. Venus and Mars have largely CO2 atmospheres. PDS 70 has been in the news periodically.

Surprise! Baby exoplanets might look like Smarties candies rather than spheres, https://forums.space.com/threads/su...e-smarties-candies-rather-than-spheres.65148/

JWST observations find water for the first time in the inner disk around a young star with giant planets, https://phys.org/news/2023-07-jwst-disk-young-star-giant.html