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Discovery of spectacular quasar-driven superbubbles in red quasars

Quasar-driven outflows on galactic scales are a routinely invoked ingredient for galaxy formation models. We report the discovery of ionized gas nebulae surrounding three luminous red quasars at z ~ 0.4 from Gemini integral field unit observations. All these nebulae feature unprecedented pairs of “s...

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Main Authors: Shen, Lu (Author) , Liu, Guilin (Author) , He, Zhicheng (Author) , Zakamska, Nadia L. (Author) , Glikman, Eilat (Author) , Greene, Jenny E. (Author) , Hu, Weida (Author) , Mou, Guobin (Author) , Wylezalek, Dominika (Author) , Rupke, David S. N. (Author)
Format: Article (Journal)
Language:English
Published: Jul 2023
In: Science advances
Year: 2023, Volume: 9, Issue: 28, Pages: 1-13
ISSN:2375-2548
DOI:10.1126/sciadv.adg8287
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1126/sciadv.adg8287
Verlag, kostenfrei, Volltext: https://www.science.org/doi/10.1126/sciadv.adg8287
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Author Notes:Lu Shen, Guilin Liu, Zhicheng He, Nadia L. Zakamska, Eilat Glikman, Jenny E. Greene, Weida Hu, Guobin Mou, Dominika Wylezalek, David S.N. Rupke
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Summary:Quasar-driven outflows on galactic scales are a routinely invoked ingredient for galaxy formation models. We report the discovery of ionized gas nebulae surrounding three luminous red quasars at z ~ 0.4 from Gemini integral field unit observations. All these nebulae feature unprecedented pairs of “superbubbles” extending ~20 kpc in diameter, and the line-of-sight velocity difference between the red- and blueshifted bubbles reaches up to ~1200 km/s. Their spectacular dual-bubble morphology (in analogy to the galactic “Fermi bubbles”) and their kinematics provide unambiguous evidence for galaxy-wide quasar-driven outflows, in parallel with the quasi-spherical outflows similar in size from luminous type 1 and type 2 quasars at concordant redshift. These bubble pairs manifest themselves as a signpost of the short-lived superbubble “break-out” phase, when the quasar wind drives the bubbles to escape the confinement from the dense environment and plunge into the galactic halo with a high-velocity expansion.
Item Description:Online veröffentlicht: 12. Juli 2023
Gesehen am 09.10.2023
Physical Description:Online Resource
ISSN:2375-2548
DOI:10.1126/sciadv.adg8287

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