Dwarf Galaxies Show Little ISM Evolution from z ∼ 1 to z ∼ 0: A Spectroscopic Study of Metallicity, Star Formation, and Electron Density

John Pharo; Yicheng Guo; Guillermo Barro Calvo; Teja Teppala; Fuyan Bian; Timothy Carleton; Sandra Faber; Puragra Guhathakurta; David C. Koo

doi:10.3847/1538-4357/ad0134

The Astrophysical Journal (Jan 2023)

Dwarf Galaxies Show Little ISM Evolution from z ∼ 1 to z ∼ 0: A Spectroscopic Study of Metallicity, Star Formation, and Electron Density

John Pharo,
Yicheng Guo,
Guillermo Barro Calvo,
Teja Teppala,
Fuyan Bian,
Timothy Carleton,
Sandra Faber,
Puragra Guhathakurta,
David C. Koo

Affiliations

John Pharo: Leibniz-Institut für Astrophysik Potsdam (AIP) , An der Sternwarte 16, D-14482 Potsdam, Germany ; [email protected]; Department of Physics and Astronomy, University of Missouri , Columbia, MO 65211, USA
Yicheng Guo: ORCiD; Department of Physics and Astronomy, University of Missouri , Columbia, MO 65211, USA
Guillermo Barro Calvo: University of the Pacific , Stockton, CA, USA
Teja Teppala: Department of Physics and Astronomy, University of Missouri , Columbia, MO 65211, USA
Fuyan Bian: ORCiD; European Southern Observatory , Alonso de Córdova 3107, Casilla 19001, Vitacura, Santiago 19, Chile
Timothy Carleton: ORCiD; School of Earth and Space Exploration, Arizona State University , Phoenix, AZ, USA
Sandra Faber: UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California Santa Cruz , Santa Cruz, CA, USA
Puragra Guhathakurta: ORCiD; University of California Santa Cruz , Santa Cruz, CA, USA
David C. Koo: ORCiD; UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California Santa Cruz , Santa Cruz, CA, USA

DOI: https://doi.org/10.3847/1538-4357/ad0134
Journal volume & issue: Vol. 959, no. 1
p. 48

Abstract

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We present gas-phase metallicity measurements for 583 emission line galaxies at 0.3 1. These results all suggest that there is little evolution in star-forming interstellar medium conditions from z ∼ 1 to z = 0, confirmed with a more complete sample of low-mass galaxies than has previously been available in this redshift range.

Published in The Astrophysical Journal

ISSN: 1538-4357 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy: Astrophysics
Website: https://iopscience.iop.org/journal/0004-637X

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