Naveen A. Reddy

The AURORA Survey: The Mass–Metallicity and Fundamental Metallicity Relations at z ∼ 2.3 Based Purely on Direct T e Metallicities

Ali Ahmad Khostovan, Ryan L. Sanders, Alice E. Shapley, Michael W. Topping et autres

Abstract We present new constraints on the mass–metallicity (MZR) and fundamental metallicity relations (FMR) using a sample of 34 galaxies at 1.38 ≤ z ≤ 3.5 (median z = 2.28). These galaxies have direct T e measurements from [O iii ]4363 Å …

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The AURORA Survey: Robust Helium Abundances at High Redshift Reveal a Subpopulation of Helium-enhanced Galaxies in the Early Universe

Danielle Berg, Ryan L. Sanders, Alice E. Shapley, Michael Topping et autres

Abstract We present the first robust helium (He) abundance measurements in star-forming galaxies at redshifts 1.6 ≲ z ≲ 3.3 using deep, moderate-resolution JWST/NIRSpec spectroscopy from the AURORA survey. We establish a high- z He sample consisting of 20 galaxies with multiple …

Stellar Populations and the ISM in the High-Redshift Universe as Revealed by JWST

Naveen A. Reddy

Abstract In this contribution, I will review a few of the key characteristics of the stellar populations and interstellar medium (ISM) of high-redshift galaxies as revealed by James Webb Space Telescope (JWST) spectroscopy. Specifically, I will discuss recent evidence for nitrogen enhancement …

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