Molecular Outflows in z > 6 QSO Hosts Driven by Star Formation

Abstract

Feedback and outflows in galaxies that are associated with a quasar phase are expected to be pivotal in quenching the most massive galaxies. However, observations targeting the molecular outflow phase, which dominates both the mass and momentum and removes the immediate fuel for star formation, are limited in high-z QSO hosts. Massive quiescent galaxies found at z ~ 4 are predicted to have already quenched star formation by z ~ 5 and undergone their most intense growth at z > 6. Here, we present two ALMA detections of molecular outflows, traced by blue-shifted absorption of the OH 119 micron doublet, from a sample of three z > 6 infrared luminous QSO hosts: J2310+1855 and P183+05. OH 119 micron is also detected in emission in P183+05, and tentatively in the third source: P036+03. Using similar assumptions as for high-z Dusty Star-Forming Galaxy outflows, we find that our QSOs drive molecular outflows with comparable mass outflow rates, and that are comparably energetic except for J2310+1855's significantly lower outflow energy flux. We do not find evidence, nor require additional input from the central AGN to drive the molecular outflow in J2310+1855 but can not rule out an AGN contribution in P183+05 if a significant AGN contribution to L_FIR is assumed and/or if the outflow covering fraction is high (> 53%), which evidence from the literature suggests is unlikely in these sources. Differences observed in the blue-shifted absorption spectral properties may instead be caused by the QSO hosts' more compact dust continuum, limiting observations to lower altitude and more central regions of the outflow.

Erratum: 4 pages, 3 figures, 1 table Original: 19 pages, 7 figures, 3 tables

References in corpus (34)

• Massive molecular outflows and negative feedback in ULIRGs observed by Herschel-PACS
• The Final SDSS High-Redshift Quasar Sample of 52 Quasars at z>5.7
• Physical properties of 15 quasars at $z\gtrsim 6.5$
• Very extended cold gas, star formation and outflows in the halo of a bright QSO at z>6
• The ALPINE-ALMA [CII] survey: Star-formation-driven outflows and circumgalactic enrichment in the early Universe
• The identification of z-dropouts in Pan-STARRS1: three quasars at 6.5<z<6.7
• Molecular outflows in local ULIRGs: energetics from multi-transition OH analysis
• Kiloparsec-scale ALMA Imaging of [CII] and Dust Continuum Emission of 27 Quasar Host Galaxies at z~6
• The Kinematics of z ~ 6 Quasar Host Galaxies
• A Review of Recent Observations of Galactic Winds Driven by Star Formation
• The Massive Ancient Galaxies At $z>3$ NEar-infrared (MAGAZ3NE) Survey: Confirmation of Extremely Rapid Star-Formation and Quenching Timescales for Massive Galaxies in the Early Universe
• Large turbulent reservoirs of cold molecular gas around high-redshift starburst galaxies
• A kiloparsec view of a typical star-forming galaxy when the Universe was ~1 Gyr old. Part I. Outflow, halo, and interstellar medium properties
• The WISSH quasars Project: II. Giant star nurseries in hyper-luminous quasars
• No evidence for [CII] halos or high-velocity outflows in z>6 quasar host galaxies
• Widespread, strong outflows in XQR-30 quasars at the Reionisation epoch
• First CO(17-16) emission line detected in a z > 6 quasar
• Bright [CII] 158$\mu$m emission in a quasar host galaxy at $z=6.54$
• CLEAR II: Evidence for Early Formation of the Most Compact Quiescent Galaxies at High Redshift
• Physical constraints on the extended interstellar medium of the z=6.42 quasar J1148+5251: [CII] 158um, [NII] 205um and [OI] 146um observations
• Ubiquitous Molecular Outflows in z > 4 Massive, Dusty Galaxies I. Sample Overview and Clumpy Structure in Molecular Outflows on 500pc Scales
• Molecular gas in z~6 quasar host galaxies
• Ubiquitous Molecular Outflows in z > 4 Massive, Dusty Galaxies II. Momentum-Driven Winds Powered by Star Formation in the Early Universe
• Star Formation and ISM Properties in Host Galaxies of Three Far-infrared Luminous Quasars at $z\sim 6$
• Probing the full CO spectral line energy distribution (SLED) in the nuclear region of a quasar-starburst system at $z=6.003$
• The rocky road to quiescence: compaction and quenching of quasar host galaxies at z~2
• Close-up view of a luminous star-forming galaxy at z=2.95
• The interstellar medium distribution, gas kinematics, and system dynamics of the far-infrared luminous quasar SDSS J2310+1855 at $z=6.0$
• Molecular Gas Inflows and Outflows in Ultraluminous Infrared Galaxies at $z\sim 0.2$ and one QSO at $z=6.1$
• The GADOT Galaxy Survey: Dense Gas and Feedback in Herschel-Selected Starburst Galaxies at Redshifts 2 to 6
• The black hole and host galaxy growth in an isolated $z\sim 6$ QSO observed with ALMA
• Where do quasar hosts lie with respect to the size-mass relation of galaxies?
• $Herschel$/PACS OH Spectroscopy of Seyfert, LINER, and Starburst Galaxies
• The Impact of Powerful Jets on the Far-infrared Emission of an Extreme Radio Quasar at z~6

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• Not gone with the Wind: Survival of High-Velocity Molecular Clouds in the Galactic center
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• High-Redshift Galactic Outflows: Orientation Effects, Kinematics, and Metallicity in TNG50 and SERRA