Explaining the emission lines in early-type galaxies

2025/03/14 by G. Stasińska, Stasińska, Grażyna
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #Electrical and Electromagnetic Research #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena

paper · pdf · doi:10.48550/arxiv.2503.11415

openalex publication_date 2025/03/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We explore the hypothesis that the weak emission lines observed in some early-type galaxies (ETGs) are due to ionization by hot low-mass evolved stars (HOLMES) and analyze the pros and cons.

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