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Main Authors: Seebeck, Jerome, Dan, Kylie Yui, Veilleux, Sylvain, Rupke, David, Gonzalez-Alfonso, Eduardo, Garcia-Bernete, Ismael, Liu, Weizhe, Lutz, Dieter, Melendez, Marcio, Pereira-Santaella, Miguel, Sturm, Eckhard, Tombesi, Francesco
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2602.03836
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author Seebeck, Jerome
Dan, Kylie Yui
Veilleux, Sylvain
Rupke, David
Gonzalez-Alfonso, Eduardo
Garcia-Bernete, Ismael
Liu, Weizhe
Lutz, Dieter
Melendez, Marcio
Pereira-Santaella, Miguel
Sturm, Eckhard
Tombesi, Francesco
author_facet Seebeck, Jerome
Dan, Kylie Yui
Veilleux, Sylvain
Rupke, David
Gonzalez-Alfonso, Eduardo
Garcia-Bernete, Ismael
Liu, Weizhe
Lutz, Dieter
Melendez, Marcio
Pereira-Santaella, Miguel
Sturm, Eckhard
Tombesi, Francesco
contents Ultra-fast outflows (UFOs) are thought to be a driving mechanism of large-scale winds driven by active galactic nuclei, which cause significant galactic feedback through quenching star formation and regulating supermassive black hole growth. We present James Webb Space Telescope (JWST) Mid-Infrared Instrument Medium-Resolution Spectrometer observations of two nearby ultraluminous infrared galaxies (ULIRGs), F11119+3257 and F05189-2524, with nuclear X-ray detected UFOs and kiloparsec-scale outflow. These galaxies show remarkably similar mid-infrared continuum and emission line features, notably including a high-velocity $v_{90}$ $\sim$ 4000 km s$^{-1}$ outflow detected in highly ionized neon emission lines, e.g., \nevi. In F05189-2524, we see a slightly slower biconical outflow extending up to $\sim2$ kpc in the same neon emission lines. Both sources show evidence of AGN-driven radiative feedback through a deficit of rotational molecular hydrogen lines in the nuclear region, $<$1 kpc from the central quasar, but no clear evidence of any molecular gas entrained in the quasar-driven outflow. Energetic analysis shows that the warm ionized gas in both of these sources contributes minimally ($\sim0.1-5\%$) to the momentum outflow rate of these sources and leaves the conclusions of previous literature unchanged: the energetics of these sources are broadly consistent with a momentum-conserving outflow.
format Preprint
id arxiv_https___arxiv_org_abs_2602_03836
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle JWST Discovery of High-Velocity Mid-Infrared Ionized Outflows in Ultraluminous Infrared Galaxies F11119+3257 and F05189-2524
Seebeck, Jerome
Dan, Kylie Yui
Veilleux, Sylvain
Rupke, David
Gonzalez-Alfonso, Eduardo
Garcia-Bernete, Ismael
Liu, Weizhe
Lutz, Dieter
Melendez, Marcio
Pereira-Santaella, Miguel
Sturm, Eckhard
Tombesi, Francesco
Astrophysics of Galaxies
Ultra-fast outflows (UFOs) are thought to be a driving mechanism of large-scale winds driven by active galactic nuclei, which cause significant galactic feedback through quenching star formation and regulating supermassive black hole growth. We present James Webb Space Telescope (JWST) Mid-Infrared Instrument Medium-Resolution Spectrometer observations of two nearby ultraluminous infrared galaxies (ULIRGs), F11119+3257 and F05189-2524, with nuclear X-ray detected UFOs and kiloparsec-scale outflow. These galaxies show remarkably similar mid-infrared continuum and emission line features, notably including a high-velocity $v_{90}$ $\sim$ 4000 km s$^{-1}$ outflow detected in highly ionized neon emission lines, e.g., \nevi. In F05189-2524, we see a slightly slower biconical outflow extending up to $\sim2$ kpc in the same neon emission lines. Both sources show evidence of AGN-driven radiative feedback through a deficit of rotational molecular hydrogen lines in the nuclear region, $<$1 kpc from the central quasar, but no clear evidence of any molecular gas entrained in the quasar-driven outflow. Energetic analysis shows that the warm ionized gas in both of these sources contributes minimally ($\sim0.1-5\%$) to the momentum outflow rate of these sources and leaves the conclusions of previous literature unchanged: the energetics of these sources are broadly consistent with a momentum-conserving outflow.
title JWST Discovery of High-Velocity Mid-Infrared Ionized Outflows in Ultraluminous Infrared Galaxies F11119+3257 and F05189-2524
topic Astrophysics of Galaxies
url https://arxiv.org/abs/2602.03836