Dust in the Very Metal-poor Galaxy Sextans A with JWST. I. Characterizing the Evolved Stellar Population of Sextans A Based on JWST Observations and Stellar Evolution Models

The nearby star-forming dwarf galaxy Sextans A offers a unique window into galaxy evolution in the early Universe, owing to its extremely low metallicity (∼0.01–0.07 Z _⊙ ). Recent JWST imaging of Sextans A spanning 1–21  μ m enables a detailed characterization of its dusty stellar populations and i...

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Hauptverfasser:	C. Gavetti, F. Dell’Agli, E. Tarantino, M. L. Boyer, I. McDonald, J. Th. van Loon, D. A. García-Hernández, M. A. T. Groenewegen, A. Nanni, J. A. D. L. Blommaert, R. D. Gehrz, L. M. Gerlach, S. Goldman, M. Marengo, K. B. W. McQuinn, J. M. Oliveira, J. Roman-Duval, R. Sahai, E. D. Skillman, B. F. Williams, A. Javadi, O. C. Jones, F. Kemper, F. La Franca, G. C. Sloan
Format:	Artigo
Sprache:	Inglês
Veröffentlicht:	IOP Publishing 2026-01-01
Schriftenreihe:	The Astrophysical Journal
Schlagworte:	James Webb Space Telescope Asymptotic giant branch Carbon stars Circumstellar dust Dwarf galaxies
Online-Zugang:	https://doi.org/10.3847/1538-4357/ae7bee
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