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Survival of Massive Star-forming Galaxies in Cluster Cores Drives Gas-phase Metallicity Gradients: The Effects of Ram Pressure Stripping

Gupta, Anshu; Yuan, Tiantian; Martizzi, Davide; Tran, Kim-Vy; Kewley, Lisa


Recent observations of galaxies in a cluster at z = 0.35 show that their integrated gas-phase metallicities increase with decreasing cluster-centric distance. To test whether ram pressure stripping (RPS) is the underlying cause, we use a semianalytic model to quantify the "observational bias" that RPS introduces into the aperture-based metallicity measurements. We take integral field spectroscopy of local galaxies, remove gas from their outer galactic disks via RPS, and then conduct mock slit...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aa74ea


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