The Carbon-to-oxygen Ratio in Cool Brown Dwarfs and Giant Exoplanets. I. The Benchmark Late-T Dwarfs GJ 570D, HD 3651B, and Ross 458C

The Carbon-to-oxygen Ratio in Cool Brown Dwarfs and Giant Exoplanets. I. The Benchmark Late-T Dwarfs GJ 570D, HD 3651B, and Ross 458C

Measurements of the C/O ratio in brown dwarfs are lacking, in part due to past models adopting solar C/O only. We have expanded the ATMO 2020 atmosphere model grid to include nonsolar metallicities and C/O ratios in the T dwarf regime. We change the C/O ratio by altering either the carbon or oxygen...

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Bibliographic Details
Main Authors: Mark W. Phillips, Michael C. Liu, Zhoujian Zhang
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal
Subjects:
Brown dwarfs
T dwarfs
Spectroscopy
Near infrared astronomy
Exoplanet atmospheres
Online Access:https://doi.org/10.3847/1538-4357/ad06ba

Internet

https://doi.org/10.3847/1538-4357/ad06ba

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