Combination of cosmic processes shapes the size and location of sub-Neptunes
Credit: Abigail Minnich.

Combination of cosmic processes shapes the size and location of sub-Neptunes

Alvin Lieberman Alvin Lieberman

Alvin Lieberman

CHIEF SYSTEMS ENGINEER | PE | ENGR, MSEE, BEE | NASA,FAA,IBM,NRL,USAF,USN,SSPO | S&T | RDT&E | AIAA,IEEE,NSPE,INCOSE,SPIE,ION,ANS,NDIA |

发布日期: 2025年3月18日
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Using a newly developed tool to sift through data from the NASA’s Transiting Exoplanet Survey Satellite, a team led by a Penn State astronomer has identified young sub-Neptune planets close to their stars and found that a variety of cosmic process may have shaped their size and location. In this hypothetical planetary system depicted over time, the planets b through f are depicted at three distinct stages: 10 to 100 million years (Myr) in the top panel, 100 Myr to 1 billion years (Gyr) in the middle panel and more than 1 Gyr in the bottom panel. This progression highlights key processes shaping the system, such as atmospheric mass loss and compositional evolution driven by stellar radiation and planetary interactions.?... Gail McCormick

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