Direct Images of CO2 Absorption in the Atmosphere of a Super-Jupiter: Enhanced Metallicity Suggestive of Formation in a Disk

It is unclear how directly imaged substellar companions with masses near the deuterium burning limit form, because these objects are rare and their bulk properties are not diagnostic of their formation. In this Letter, we revisit this problem using JWST/NIRCam coronagraphic images of the 29 Cygni (=...

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Hlavní autoři:	William O. Balmer, Laurent Pueyo, Ashley Messier, Evelyn Bruinsma, Jeremy Jones, Klara Matuszewska, Marshall D. Perrin, Julien H. Girard, Jarron M. Leisenring, Kellen Lawson, Roeland P. van der Marel, Jens Kammerer, Aarynn Carter, Mathilde Mâlin, Kimberly Ward-Duong, Kielan K. W. Hoch, Emily Rickman, Sara Seager
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	IOP Publishing 2026-01-01
Edice:	The Astrophysical Journal Letters
Témata:	Direct imaging High contrast techniques Coronagraphic imaging Carbon dioxide Exoplanet formation
On-line přístup:	https://doi.org/10.3847/2041-8213/ae374a
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