Exploring spatially resolved metallicities, dynamics, and outflows in low-mass galaxies at z ∼ 7.6
Lucy R. Ivey; J. Scholtz; A. Lola Danhaive; Sophie Koudmani; Gareth C. Jones; R. Maiolino; Mirko Curti; Francesco D’Eugenio · 2026 · Monthly Notices of the Royal Astronomical Society
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Abstract
ABSTRACT A majority of JWST/NIRSpec integral field unit (IFU) studies at high redshifts to date have focused on UV-bright or massive objects, while our understanding of low-mass galaxies at early cosmic times remains limited. In this work, we present NIRSpec/IFU high-resolution observations of two low-mass ($M_*< 10^9 \ \mathrm{ M}_\odot$), low-metallicity ($[12+\log (\mathrm{O/H})]< 8$) galaxies at $z\sim 7.66$, one of which we identify as hosting a Type-II active galactic nucleus (AGN). We measure flat strong-line metallicity gradients, suggestive of interstellar medium redistribution by out
Abstract by Lucy R. Ivey; J. Scholtz; A. Lola Danhaive; Sophie Koudmani; Gareth C. Jones; R. Maiolino; Mirko Curti; Francesco D’Eugenio, Monthly Notices of the Royal Astronomical Society (2026) — licensed CC BY 4.0.
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Metadata source: OpenAlex · DOI 10.1093/mnras/stag094