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Self-consistent Predictions for LIER-like Emission Lines from Post-AGB Stars

Byler, Nell; Dalcanton, Julianne; Conroy, Charlie; Johnson, Benjamin D.; Choi, Jieun; Dotter, Aaron; Rosenfield, Philip

Description

Early-type galaxies (ETGs) frequently show emission from warm ionized gas. These low-ionization emission regions (LIERs) were originally attributed to a central, low-luminosity active galactic nucleus. However, the recent discovery of spatially extended LIER emission suggests ionization by both a central source and an extended component that follows a stellar-like radial distribution. For passively evolving galaxies with old stellar populations, hot post-asymptotic giant branch (AGB) stars...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
URI: http://hdl.handle.net/1885/210580
Source: The Astronomical Journal
DOI: 10.3847/1538-3881/ab1b70

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