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Author

N. Roy

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Open access Sep 2026

Lighting Up the Circumgalactic Medium: Strong, Jet-aligned Hα Emission around Radio Galaxies

A primary question is how active galactic nuclei (AGN) feedback modifies the circumgalactic medium (CGM). We present a search for faint Hα emission from the cool ionized CGM (T ∼ 104 K) around radio galaxies by stacking background-quasar spectra from Dark Energy Spectroscopic Instrument (DESI) sight lines. We take into...

N. Roy, S. Borthakur, T. Heckman et al. · 1 citation

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