Deep Rest-UV JWST/NIRSpec Spectroscopy of Early Galaxies: The Demographics of C  iv  and N-emitters in the Reionization Era

Topping, Michael W.; Stark, Dan; Senchyna, Peter; Chen, Zuyi; Zitrin, Adi; Endsley, Ryan; Charlot, S.; Furtak, Lukas J.; Maseda, Michael V.; Plat, Adèle; Smit, Renske; Mainali, Ramesh; Chevallard, Jacopo; Molyneux, Stephen; Rigby, Jane R.

doi:10.3847/1538-4357/ada95c

articleThe Astrophysical JournalFeb 18, 2025GOLD OA

Deep Rest-UV JWST/NIRSpec Spectroscopy of Early Galaxies: The Demographics of C iv and N-emitters in the Reionization Era

MWMichael W. Topping DSDan Stark PSPeter Senchyna ZCZuyi Chen AZAdi Zitrin

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Abstract

Abstract JWST has recently discovered a subset of reionization era galaxies with ionized gas that is metal-poor in oxygen and carbon but heavily enriched in nitrogen. This abundance pattern is almost never seen in lower-redshift galaxies but is commonly observed in globular cluster stars. We have recently demonstrated that this peculiar abundance pattern appears in a compact (≃20 pc) metal-poor galaxy undergoing a strong burst of star formation. This galaxy was originally selected based on strong C iv emission, indicating a hard radiation field rarely seen locally. In this paper, we present JWST/NIRSpec observations of another reionization-era galaxy known to power strong C iv emission, the z = 7.04…

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Keywords

Reionization
Physics
Galaxy
Astrophysics
Intergalactic medium
Globular cluster
Astronomy
Spectroscopy

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