Bright [CII] and dust emission in three z>6.6 quasar host galaxies observed by ALMA

Abstract

We present ALMA detections of the [CII] 158 micron emission line and the underlying far-infrared continuum of three quasars at 6.6<z<6.9 selected from the VIKING survey. The [CII] line fluxes range between 1.6-3.4 Jy km/s ([CII] luminosities ~(1.9-3.9)x10^9 L_sun). We measure continuum flux densities of 0.56-3.29 mJy around 158 micron (rest-frame), with implied far-infrared luminosities between (0.6-7.5)x10^12 L_sun and dust masses M_d=(0.7-24)x10^8 M_sun. In one quasar we derive a dust temperature of 30^+12_-9 K from the continuum slope, below the canonical value of 47 K. Assuming that the [CII] and continuum emission are powered by star formation, we find star-formation rates from 100-1600 M_sun/yr based on local scaling relations. The L_[CII]/L_FIR ratios in the quasar hosts span a wide range from (0.3-4.6)x10^-3, including one quasar with a ratio that is consistent with local star-forming galaxies. We find that the strength of the L_[CII] and 158 micron continuum emission in z>~6 quasar hosts correlate with the quasar's bolometric luminosity. In one quasar, the [CII] line is significantly redshifted by ~1700 km/s with respect to the MgII broad emission line. Comparing to values in the literature, we find that, on average, the MgII is blueshifted by 480 km/s (with a standard deviation of 630 km/s) with respect to the host galaxy redshift, i.e. one of our quasars is an extreme outlier. Through modeling we can rule out a flat rotation curve for our brightest [CII] emitter. Finally, we find that the ratio of black hole mass to host galaxy (dynamical) mass is higher by a factor 3-4 (with significant scatter) than local relations.

16 pages, 12 figures. Accepted for publication in ApJ

References in corpus (24)

• Cosmic Star Formation History
• A luminous quasar at a redshift of z = 7.085
• Dust Masses, PAH Abundances, and Starlight Intensities in the SINGS Galaxy Sample
• 350 Micron Dust Emission from High Redshift Quasars
• A Kiloparsec-Scale Hyper-Starburst in a Quasar Host Less than 1 Gigayear after the Big Bang
• Gemini Near-infrared Spectroscopy of Luminous z~6 Quasars: Chemical Abundances, Black Hole Masses, and MgII Absorption
• The Massive Hosts of Radio Galaxies Across Cosmic Time
• Black hole masses and enrichment of z ~ 6 SDSS quasars
• ALMA Imaging of Gas and Dust in a Galaxy Protocluster at Redshift 5.3: [CII] Emission in "Typical" Galaxies and Dusty Starbursts ~1 Billion Years after the Big Bang
• [CII] 158 $\mu$m Emission as a Star Formation Tracer
• The nature of the [CII] emission in dusty star-forming galaxies from the SPT survey
• The identification of z-dropouts in Pan-STARRS1: three quasars at 6.5<z<6.7
• Thermal Emission from Warm Dust in the Most Distant Quasars
• Kinematic modelling of disk galaxies I. A new method to fit tilted rings to data cubes
• Star formation rate and dynamical mass of 10^8 solar mass black hole host galaxies at redshift 6
• ALMA constraints on the faint millimetre source number counts and their contribution to the cosmic infrared background
• High-redshift quasars host galaxies: is there a stellar mass crisis?
• Strong C+ emission in galaxies at z~1-2: Evidence for cold flow accretion powered star formation in the early Universe
• A Census of Gas Outflows in Type 2 Active Galactic Nuclei
• The CO Tully-Fisher Relation and Implications for the Host Galaxies of High-Redshift Quasars
• Star Formation Rates from [CII] 158 um and Mid Infrared Emission Lines for Starbursts and AGN
• Bright [CII] 158$\mu$m emission in a quasar host galaxy at $z=6.54$
• [C II] emission from galactic nuclei in the presence of X-rays
• The spectral energy distribution of the redshift 7.1 quasar ULAS J1120+0641

Cited by in corpus (154)

• An 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5
• The Pan-STARRS1 distant z>5.6 quasar survey: more than 100 quasars within the first Gyr of the universe
• The realm of the galaxy protoclusters
• Physical properties of 15 quasars at $z\gtrsim 6.5$
• An ALMA [CII] survey of 27 quasars at z>5.94
• Galaxy growth in a massive halo in the first billion years of cosmic history
• Subaru high-z exploration of low-luminosity quasars (SHELLQs). I. Discovery of 15 quasars and bright galaxies at 5.7 < z < 6.9
• Correcting CIV-Based Virial Black Hole Masses
• Gemini GNIRS near-infrared spectroscopy of 50 quasars at z>~5.7
• A Significantly Neutral Intergalactic Medium Around the Luminous z=7 Quasar J0252-0503
• Kiloparsec-scale ALMA Imaging of [CII] and Dust Continuum Emission of 27 Quasar Host Galaxies at z~6
• ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift Supermassive Black Holes
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). VI. Black Hole Mass Measurements of Six Quasars at 6.1<z<6.7
• [CII] emission in z ~ 6 strongly lensed, star-forming galaxies
• Molecular gas in the Herschel-selected strongly lensed submillimeter galaxies at z~2-4 as probed by multi-J CO lines
• Copious Amounts of Dust and Gas in a z=7.5 Quasar Host Galaxy
• The Kinematics of z ~ 6 Quasar Host Galaxies
• The hierarchical assembly of galaxies and black holes in the first billion years: predictions for the era of gravitational wave astronomy
• The compact, ~1 kpc host galaxy of a quasar at z=7.1
• Widespread QSO-driven outflows in the early Universe
• The X-shooter/ALMA Sample of Quasars in the Epoch of Reionization. II. Black Hole Masses, Eddington Ratios, and the Formation of the First Quasars
• The REQUIEM Survey I: A Search for Extended Ly-Alpha Nebular Emission Around 31 z>5.7 Quasars
• The X-SHOOTER/ALMA sample of Quasars in the Epoch of Reionization. I. NIR spectral modeling, iron enrichment and broad emission line properties
• Three new VHS-DES Quasars at 6.7 < z < 6.9 and Emission Line Properties at z > 6.5
• EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $z\gtrsim 6$
• Jekyll & Hyde: quiescence and extreme obscuration in a pair of massive galaxies 1.5 Gyr after the Big Bang
• ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Search for [CII] line and dust emission in 6<z<8 galaxies
• Dust emission in an accretion-rate-limited sample of z>6 quasars
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) VIII. A less biased view of the early co-evolution of black holes and host galaxies
• The X-ray properties of $z>6$ quasars: no evident evolution of accretion physics in the first Gyr of the Universe
• Detecting and Characterizing Young Quasars I: Systemic Redshifts and Proximity Zones Measurements
• Probing the interstellar medium and star formation of the Most Luminous Quasar at z=6.3
• A wide dispersion in star formation rate and dynamical mass of 10^8 solar mass black hole host galaxies at redshift 6
• A merger in the dusty, $z=7.5$ galaxy A1689-zD1?
• The Most Massive Galaxies and Black Holes Allowed by $\Lambda$CDM
• Molecular gas in three z~7 quasar host galaxies
• The ALMA view of the high-redshift relation between supermassive black holes and their host galaxies
• Supermassive Star Formation via Super Competitive Accretion in Slightly Metal-enriched Clouds
• 400 pc Imaging of a Massive Quasar Host Galaxy at a Redshift of 6.6
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XIII. Large-scale Feedback and Star Formation in a Low-Luminosity Quasar at z = 7.07 on the Local Black Hole to Host Mass Relation
• On the formation of the first quasars
• Evidence for Low Radiative Efficiency or Highly Obscured Growth of $z>7$ Quasars
• XQR-30: the ultimate XSHOOTER quasar sample at the reionization epoch
• The Dramatic Size and Kinematic Evolution of Massive Early-Type Galaxies
• Radiation hydrodynamics simulations of the formation of direct-collapse supermassive stellar systems
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) III. Star formation properties of the host galaxies at $z\gtrsim 6$ studied with ALMA
• Spatially Resolved Interstellar Medium and Highly-Excited Dense Molecular Gas in the Most Luminous Quasar at z=6.327
• The WISSH QSOs project IX. Cold gas content and environment of luminous QSOs at z~2.4-4.7
• Resolved [CII] Emission from z>6 Quasar Host -- Companion Galaxy Pairs
• No overdensity of Lyman Alpha Emitting Galaxies around a quasar at z~5.7
• Revealing the Accretion Physics of Supermassive Black Holes at Redshift z~7 with Chandra and Infrared Observations
• GA-NIFS: Black hole and host galaxy properties of two z$\simeq$6.8 quasars from the NIRSpec IFU
• Significant Dust-Obscured Star Formation in Luminous Lyman-break Galaxies at $z$$\sim$$7$$-$$8$
• Quasar outflows at $z\ge 6$: the impact on the host galaxies
• Gas dynamics of a luminous $z$ = 6.13 quasar ULAS J1319$+$0950 revealed by ALMA high resolution observations
• First Spectroscopic Study of a Young Quasar
• Three Lyman-alpha emitting galaxies within a quasar proximity zone at z=5.8
• Mapping the Lyman-Alpha Emission Around a z~6.6 QSO with MUSE: Extended Emission and a Companion at Close Separation
• Detecting and Characterizing Young Quasars II: Four Quasars at $z\sim 6$ with Lifetimes $<10^4$ years
• Galactic Scale Feedback Observed in the 3C 298 Quasar Host Galaxy
• ALMA Confirmation of an Obscured Hyperluminous Radio-Loud AGN at $z=6.853$ Associated with a Dusty Starburst in the 1.5 deg${}^2$ COSMOS Field
• ALMA 200 pc imaging of a z~7 quasar reveals a compact, disk-like host galaxy
• Far-Infrared Properties of the Bright, Gravitationally Lensed Quasar J0439+1634 at z=6.5
• Large Scale Environment of a $z=6.61$ Luminous Quasar Probed by Ly$\alpha$ Emitters and Lyman Break Galaxies
• Dynamical Characterization of Galaxies at z~4-6 via Tilted Ring Fitting to ALMA [CII] Observations
• Host galaxies of high-redshift quasars: supermassive black hole growth and feedback
• No Redshift Evolution in the Broad Line Region Metallicity up to z=7.54: Deep NIR Spectroscopy of ULAS J1342+0928
• A metal-poor damped Ly-alpha system at redshift 6.4
• Low star formation efficiency in typical galaxies at z=5-6
• The dense molecular gas in the $\mathrm{z}\sim 6$ QSO SDSS J231038.88+185519.7 resolved by ALMA
• Physical properties of the first quasars
• Probing the Nature of High Redshift Weak Emission Line Quasars: A Young Quasar with a Starburst Host Galaxy
• HYPerluminous quasars at the Epoch of ReionizatION (HYPERION). A new regime for the X-ray nuclear properties of the first quasars
• Discovery of 24 radio-bright quasars at $4.9\le z\le 6.6$ using low-frequency radio observations
• Infrared emission of $z\sim 6$ galaxies: AGN imprints
• Estimating the effective lifetime of the $z\sim 6$ quasar population from the composite proximity zone profile
• The z=7.54 Quasar ULAS J1342+0928 Is Hosted by a Galaxy Merger
• The 500 ks Chandra observation of the z = 6.31 QSO SDSS J1030+0524
• Detections of [OIII] 88 $\mu$m in Two Quasars in the Reionization Epoch
• The mass assembly of high-redshift black holes
• An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Identifying candidate z~4.5 [CII] emitters
• Kinematics and Star Formation of High-Redshift Hot Dust-Obscured Quasars as Seen by ALMA
• Rapid Black Hole Growth at the Dawn of the Universe: A Super-Eddington Quasar at z=6.6
• Molecular gas in distant galaxies from ALMA studies
• Constraining galaxy overdensities around three z~6.5 quasars with ALMA and MUSE
• A quasar-galaxy merger at $z\sim 6.2$: black hole mass and quasar properties from the NIRSpec spectrum
• The Near and Mid-infrared photometric properties of known redshift $z\ge 5$ Quasars
• A spectral stacking analysis to search for faint outflow signatures in z~6 quasars
• No Evidence for Millimeter Continuum Source Overdensities in the Environments of $z\gtrsim 6$ Quasars
• ALMA Observations of Quasar Host Galaxies at $z\simeq 4.8$
• Radio and Far-IR Emission Associated with a Massive Star-forming Galaxy Candidate at z$\simeq$6.8: A Radio-Loud AGN in the Reionization Era?
• The WISSH quasars project V. ALMA reveals the assembly of a giant galaxy around a z=4.4 hyper-luminous QSO
• The interstellar medium distribution, gas kinematics, and system dynamics of the far-infrared luminous quasar SDSS J2310+1855 at $z=6.0$
• The host galaxies of z=7 quasars: predictions from the BlueTides simulation
• Bright Extragalactic ALMA Redshift Survey (BEARS) III: Detailed study of emission lines from 71 Herschel targets
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) XII. Extended [C II] Structure (Merger or Outflow) in a z = 6.72 Red Quasar
• Black versus Dark: Rapid Growth of Supermassive Black Holes in Dark Matter Halos at z ~ 6
• Probing Cosmic Origins with CO and [CII] Emission Lines
• Spectral Energy Distributions of Companion Galaxies to z$\sim$6 Quasars
• Black hole -- galaxy scaling relations in FIRE: the importance of black hole location and mergers
• On the Connection between Supermassive Black Hole and Galaxy Growth in the Reionization Epoch
• Chandra and Magellan/FIRE follow-up observations of PSO167-13: an X-ray weak QSO at $z=6.515$
• Resolving the Interstellar Medium in Ultraluminous Infrared QSO Hosts with ALMA
• The black hole and host galaxy growth in an isolated $z\sim 6$ QSO observed with ALMA
• The rapid transition from star-formation to AGN dominated rest-frame UV light at z ~ 4
• A Multiwavelength Study of ELAN Environments (AMUSE${}^2$). Mass budget, satellites spin alignment and gas infall in a massive $z\sim 3$ quasar host halo
• The spectral energy distribution of the hyperluminous, hot dust-obscured galaxy W2246$-$0526
• GA-NIFS and EIGER: A merging quasar host at z=7 with an overmassive black hole
• Resolving the interstellar medium in the nuclear region of two z=5.78 quasar host galaxies with ALMA
• Accurate dust temperature and star formation rate in the most luminous $z>6$ quasar in the HYPerluminous quasars at the Epoch of ReionizatION (HYPERION) sample
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). IX. Identification of Two Red Quasars at z > 5.6
• A tiny host galaxy for the first giant black hole: $z=7.5$ quasar in BlueTides
• FIR-luminous [CII] emitters in the ALMA-SCUBA-2 COSMOS survey (AS2COSMOS): The nature of submillimeter galaxies in a 10 comoving Mpc-scale structure at z~4.6
• HYPERION. Coevolution of supermassive black holes and galaxies at $z>6$ and the build-up of massive galaxies
• SCUBA2 High Redshift Bright Quasar Survey: Far-infrared Properties and Weak-line Features
• SMM J04135+10277: A distant QSO-starburst system caught by ALMA
• The Infrared Medium-deep Survey. IV. Low Eddington Ratio of A Faint Quasar at $z\sim 6$: Not Every Supermassive Black Hole is Growing Fast in the Early Universe
• The dust attenuation law in $z\sim 6$ quasars
• Evidence of Pop~III stars' chemical signature in neutral gas at z~6. A study based on the E-XQR-30 spectroscopic sample
• Conditions for direct black hole seed collapse near a radio-loud quasar 1 Gyr after the Big Bang
• APEX at the QSO MUSEUM: molecular gas reservoirs associated with $z\sim$3 quasars and their link to the extended Ly$\alpha$ emission
• What do observations tell us about the highest-redshift supermassive black holes?
• The cold molecular gas in z$\gtrsim$6 quasar host galaxies
• Unveiling the weak radio quasar population at z $\ge$ 4
• A lack of LAEs within 5Mpc of a luminous quasar in an overdensity at z=6.9: potential evidence of quasar negative feedback at protocluster scales
• Constraints On Duty Cycles Of Quasars At Z $\sim$ 6
• Testing the paradigm: First spectroscopic evidence of a quasar-galaxy Mpc-scale association at cosmic dawn
• [CI], [CII] and CO emission lines as a probe for alpha variations at low and high redshifts
• A Spatially-Resolved Survey of Distant Quasar Host Galaxies: II. Photoionization and Kinematics of the ISM
• ALMA 300 pc resolution imaging of a z=6.79 quasar: no evidence for supermassive black hole influence on the [C II] kinematics
• An X-ray fading, UV brightening QSO at $z\approx 6$
• ALMA Lensing Cluster Survey: A spectral stacking analysis of [CII] in lensed $z\sim 6$ galaxies
• The host galaxies of radio-loud quasars at z>5 with ALMA
• Possible evolution of the circum-galactic medium around QSOs with QSO age and cosmic time revealed by Ly$\alpha$ halos
• High Star Formation Rates of Low Eddington Ratio Quasars at $z\gtrsim 6$
• Effects of the Hubble Parameter on the Cosmic Growth of the First Quasars
• Fast-growing SMBHs in Fast-growing Galaxies, at High Redshifts: the Role of Major Mergers as Revealed by ALMA
• A Closer Look at Two of the Most Luminous Quasars in the Universe
• The Decoupled Kinematics of high-z QSO Host Galaxies and their Lya halos
• Optical and near-infrared spectroscopy of quasars at $z>6.5$: public data release and composite spectrum
• A Systematic Search for Reddest Far-infrared and Sub-millimeter Galaxies: revealing dust-embedded starbursts at high redshifts
• ALMA 360 pc high-frequency observations reveal warm dust in the center of a $z=6.9$ quasar
• A Multi-messenger view of Cosmic Dawn: Conquering the Final Frontier
• VLA detects CO(1-0) emission in the z=3.65 quasar SDSS J160705+533558
• Galaxies into the Dark Ages
• Unravelling the formation of the first supermassive black holes with the SKA pulsar timing array
• Primordial black hole detection through diffractive microlensing
• A luminous molecular gas pair beyond redshift 7
• X-ray stacking reveals average SMBH accretion properties of star-forming galaxies and their cosmic evolution over 4 <~ z <~ 7
• A scaling relation in [C II]-detected galaxies and its likely application in cosmology
• It is Feasible to Directly Measure Black Hole Masses in the First Galaxies
• The Impact of Powerful Jets on the Far-infrared Emission of an Extreme Radio Quasar at z~6
• A quasar shedding its dust cocoon at redshift 2
• ALMA Observations of the Sub-kpc Structure of the Host Galaxy of a z= 6.5 Lensed Quasar: A Rotationally-Supported Hyper-Starburst System at the Epoch of Reionization