Black versus Dark: Rapid Growth of Supermassive Black Holes in Dark Matter Halos at z ~ 6

Abstract

We report on the relation between the mass of supermassive black holes (SMBHs; M_BH) and that of hosting dark matter halos (M_h) for 49 z ~ 6 quasi-stellar objects (QSOs) with [CII]158um velocity-width measurements. Here, we estimate M_h assuming that the rotation velocity from FWHM_CII is equal to the circular velocity of the halo; we have tested this procedure using z ~ 3 QSOs that also have clustering-based M_h estimates. We find that a vast majority of the z ~ 6 SMBHs are more massive than expected from the local M_BH - M_h relation, with one-third of the sample by factors >~ 10^2. The median mass ratio of the sample, M_BH/M_h = 6 x 10^{-4}, means that 0.4% of the baryons in halos are locked up in SMBHs. The mass growth rates of our SMBHs amount to ~ 10% of the SFRs, or ~ 1% of the mean baryon accretion rates, of the hosting galaxies. A large fraction of the hosting galaxies are consistent with average galaxies in terms of SFR and perhaps of stellar mass and size. Our study indicates that the growth of SMBHs (M_BH ~ 10^{8-10} Msun) in luminous z ~ 6 QSOs greatly precedes that of hosting halos owing to efficient gas accretion even under normal star formation activities, although we cannot rule out the possibility that undetected SMBHs have local M_BH/M_h ratios. This preceding growth is in contrast to much milder evolution of the stellar-to-halo mass ratio.

arXiv comment9 pages, 6 figures, 1 table. Published in ApJ Letters

References in corpus (46)

• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• Star Formation in the Milky Way and Nearby Galaxies
• The Average Star Formation Histories of Galaxies in Dark Matter Halos from z=0-8
• In the Beginning: The First Sources of Light and the Reionization of the Universe
• UniverseMachine: The Correlation between Galaxy Growth and Dark Matter Halo Assembly from z=0-10
• The Merger Rates and Mass Assembly Histories of Dark Matter Haloes in the Two Millennium Simulations
• Beyond the Bulge: a Fundamental Relation Between Supermassive Black Holes and Dark Matter Halos
• Star Formation and Gas Kinematics of Quasar Host Galaxies at z~6: New insights from ALMA
• Physical properties of 15 quasars at $z\gtrsim 6.5$
• An ALMA [CII] survey of 27 quasars at z>5.94
• Feedback from Central Black Holes in Elliptical Galaxies: Two-dimensional Models Compared to One-dimensional Models
• A Kiloparsec-Scale Hyper-Starburst in a Quasar Host Less than 1 Gigayear after the Big Bang
• Quasar Clustering from SDSS DR5: Dependences on Physical Properties
• Bright [CII] and dust emission in three z>6.6 quasar host galaxies observed by ALMA
• Size--luminosity relations and UV luminosity functions at $z=6-9$ simultaneously derived from the complete Hubble Frontier Fields data
• The identification of z-dropouts in Pan-STARRS1: three quasars at 6.5<z<6.7
• Detection of atomic carbon [CII] 158 micron and dust emission from a z=7.1 quasar host galaxy
• Testing the Evolutionary Link Between Submillimetre Galaxies and Quasars: CO Observations of QSOs at z~2
• Star formation rate and dynamical mass of 10^8 solar mass black hole host galaxies at redshift 6
• The Black Hole - Bulge Relationship for QSOs at High Redshift
• GOLDRUSH. II. Clustering of Galaxies at $z\sim 4-6$ Revealed with the Half-Million Dropouts Over the 100 deg${}^2$ Area Corresponding to 1 Gpc${}^3$
• Redshift 6.4 host galaxies of 10^8 solar mass black holes: low star formation rate and dynamical mass
• ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift Supermassive Black Holes
• The halo masses and galaxy environments of hyperluminous QSOs at z~2.7 in the Keck Baryonic Structure Survey
• The environment of bright QSOs at z ~ 6: Star forming galaxies and X-ray emission
• Copious Amounts of Dust and Gas in a z=7.5 Quasar Host Galaxy
• Far-infrared and Molecular CO Emission From the Host Galaxies of Faint Quasars at z~6
• Linking black-hole growth with host galaxies: The accretion-stellar mass relation and its cosmic evolution
• Dust emission in an accretion-rate-limited sample of z>6 quasars
• [CII] line emission in massive star-forming galaxies at z=4.7
• 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
• On the relation between circular velocity and central velocity dispersion in high and low surface brightness galaxies
• Accounting for selection effects in the BH-bulge relations: No evidence for cosmological evolution
• Imaging of SDSS z>6 quasar fields: gravitational lensing, companion galaxies and the host dark matter halos
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) III. Star formation properties of the host galaxies at $z\gtrsim 6$ studied with ALMA
• [CII] line emission in BRI1335-0417 at z=4.4
• Bright [CII] 158$\mu$m emission in a quasar host galaxy at $z=6.54$
• Gas dynamics of a luminous $z$ = 6.13 quasar ULAS J1319$+$0950 revealed by ALMA high resolution observations
• No evidence for enhanced [OIII] 88um emission in a z~6 quasar compared to its companion starbursting galaxy
• The Clustering of High-Redshift (2.9 $\le$ z $\le$ 5.1) Quasars in SDSS Stripe 82
• Clustering of quasars in a wide luminosity range at redshift 4 with Subaru Hyper Suprime-Cam wide field imaging
• The dense molecular gas in the $\mathrm{z}\sim 6$ QSO SDSS J231038.88+185519.7 resolved by ALMA
• The New Numerical Galaxy Catalogue (ν^2 GC): Properties of Active Galactic Nuclei and Their Host Galaxies
• A tiny host galaxy for the first giant black hole: $z=7.5$ quasar in BlueTides
• Constraints On Duty Cycles Of Quasars At Z $\sim$ 6

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• 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
• Measuring the Density Fields around Bright Quasars at $z\sim 6$ with XQR-30 Spectra
• The Assembly of Black Hole Mass and Luminosity Functions of High-redshift Quasars via Multiple Accretion Episodes
• 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
• Conditions for direct black hole seed collapse near a radio-loud quasar 1 Gyr after the Big Bang
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• Prospects for Observing High-redshift Radio-loud Quasars in the SKA Era: Paving the Way for 21-cm Forest Observations
• Does our universe conform with the existence of a universal maximum energy-density ${\rho }_{max}^{uni}$ ?
• The evolution of supermassive blackhole mass--bulge mass relation by a semi-analytic model, ${\nu }^2$GC
• Assessing the dark matter content of two quasar host galaxies at z~6 through gas kinematics
• Probing the rapid formation of black holes and their galaxy hosts in QSOs
• Probing the mass relation between supermassive black holes and dark matter halos at high redshifts by gravitational wave experiments
• Merging history of massive galaxies at 3<z<6
• X-ray stacking reveals average SMBH accretion properties of star-forming galaxies and their cosmic evolution over 4 <~ z <~ 7
• The Resurgence of the G(2) Group for the Strong Sector and the Emergence of Dark Matter
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• The implications of overmassive black holes at $z>5$ for quasar and black hole growth