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Anjali A. A. Piette

2 articles · 30 co-authors · latest: 2025-09-21

Carbon Giant by a Dead Star

A gas giant the size of Jupiter orbits the pulsar PSR J2322-2650b, heated to 1900°C. Its atmosphere is thick soot of carbon chains, not the usual water vapor. Carbon is a hundred times more abundant than oxygen compared to normal, and ten thousand times more than nitrogen. This doesn't fit the 'blac
arXiv:2509.04558 · 2025-09-04

Ultrahot planet hides under a gas blanket

Planet TOI-561 b orbits its star in less than a day and surprises with its lightness. Infrared observations revealed: the dayside isn't hot enough for bare rock. This means a thick gas coat holds in the heat, rewriting the rules for worlds around bright stars.
arXiv:2509.17231 · 2025-09-21