A wide dispersion in star formation rate and dynamical mass of 10^8 solar mass black hole host galaxies at redshift 6

Abstract

ALMA [CII] line and continuum observations of five redshift z>6 quasars are presented. This sample was selected to probe lower black hole mass quasars than most previous studies. We find a wide dispersion in properties with CFHQS J0216-0455, a low-luminosity quasar with absolute magnitude M_1450=-22.2, remaining undetected implying a limit on the star formation rate in the host galaxy of <10 solar masses per year, whereas other host galaxies have star formation rates up to hundreds of solar masses per year. Two other quasars have particularly interesting properties. VIMOS2911 is one of the least luminous z>6 quasars known with M_1450=-23.1, yet its host galaxy is experiencing a very powerful starburst. PSO J167-13 has a broad and luminous [CII] line and a neighbouring galaxy a projected distance of 5kpc away that is also detected in the [CII] line and continuum. Combining with similar observations from the literature, we study the ratio of [CII] line to far-infrared luminosity finding this ratio increases at high-redshift at a fixed far-infrared luminosity, likely due to lower dust content, lower metallicity and/or higher gas masses. We compile a sample of 21 high-redshift quasars with dynamical masses and investigate the relationship between black hole mass and dynamical mass. The new observations presented here reveal dynamical masses consistent with the relationship defined by local galaxies. However, the full sample shows a very wide scatter across the black hole mass - dynamical mass plane, whereas both the local relationship and simulations of high-redshift quasars show a much lower dispersion in dynamical mass.

10 pages, 11 figures, ApJ in press

References in corpus (23)

• An ultra-luminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30
• Four quasars above redshift 6 discovered by the Canada-France High-z Quasar Survey
• Gemini Near-infrared Spectroscopy of Luminous z~6 Quasars: Chemical Abundances, Black Hole Masses, and MgII Absorption
• The Herschel Dwarf Galaxy Survey: I. Properties of the low-metallicity ISM from PACS spectroscopy
• Rapidly star-forming galaxies adjacent to quasars at redshifts exceeding 6
• Very extended cold gas, star formation and outflows in the halo of a bright QSO at z>6
• [CII] 158 $\mu$m Emission as a Star Formation Tracer
• The identification of z-dropouts in Pan-STARRS1: three quasars at 6.5<z<6.7
• Star formation and the interstellar medium in z>6 UV-luminous Lyman-break galaxies
• Star formation rate and dynamical mass of 10^8 solar mass black hole host galaxies at redshift 6
• Zooming on the internal structure of $z\simeq 6$ galaxies
• Six more quasars at redshift 6 discovered by the Canada-France High-z Quasar Survey
• The compact, ~1 kpc host galaxy of a quasar at z=7.1
• The Spatially Resolved [CII] Cooling Line Deficit in Galaxies
• The Subaru high-z quasar survey: discovery of faint z~6 quasars
• Growing black holes and galaxies: black hole accretion versus star formation rate
• Strong C+ emission in galaxies at z~1-2: Evidence for cold flow accretion powered star formation in the early Universe
• 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 $z=6.54$
• Gas dynamics of a luminous $z$ = 6.13 quasar ULAS J1319$+$0950 revealed by ALMA high resolution observations
• SHARC-II 350 micron Observations of Thermal Emission from Warm Dust in z>=5 Quasars
• Galaxy Formation Through Filamentary Accretion at z=6.1

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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
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• The X-ray properties of $z>6$ quasars: no evident evolution of accretion physics in the first Gyr of the Universe
• The ALMA view of the high-redshift relation between supermassive black holes and their host galaxies
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• 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
• The WISSH QSOs project IX. Cold gas content and environment of luminous QSOs at z~2.4-4.7
• GA-NIFS: Black hole and host galaxy properties of two z$\simeq$6.8 quasars from the NIRSpec IFU
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• The host galaxies of z=7 quasars: predictions from the BlueTides simulation
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) XII. Extended [C II] Structure (Merger or Outflow) in a z = 6.72 Red Quasar
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• Observing the host galaxies of high-redshift quasars with JWST: predictions from the BlueTides simulation
• Chandra and Magellan/FIRE follow-up observations of PSO167-13: an X-ray weak QSO at $z=6.515$
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• Resolving the Interstellar Medium in Ultraluminous Infrared QSO Hosts with ALMA
• GA-NIFS and EIGER: A merging quasar host at z=7 with an overmassive black hole
• 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
• HYPERION. Coevolution of supermassive black holes and galaxies at $z>6$ and the build-up of massive galaxies
• Resolving Disks & Mergers in $z\sim 2$ Heavily Reddened Quasars and their Companion Galaxies with ALMA
• The dust attenuation law in $z\sim 6$ quasars
• JWST ERS Program Q3D: The pitfalls of virial BH mass constraints shown in a z = 3 quasar with an ultramassive host
• Dark-ages reionization and galaxy formation simulation -- XVIII. The high-redshift evolution of black holes and their host galaxies
• The cold molecular gas in z$\gtrsim$6 quasar host galaxies
• What do observations tell us about the highest-redshift supermassive black holes?
• GA-NIFS: The highly overdense system BR1202-0725 at z $\sim$ 4.7. A double AGN with fast outflows plus eight companion galaxies
• Testing the paradigm: First spectroscopic evidence of a quasar-galaxy Mpc-scale association at cosmic dawn
• Infrared fine-structure lines at high redshift
• High Star Formation Rates of Low Eddington Ratio Quasars at $z\gtrsim 6$
• The host galaxies of radio-loud quasars at z>5 with ALMA
• The evolution of supermassive blackhole mass--bulge mass relation by a semi-analytic model, ${\nu }^2$GC
• Are there more galaxies than we see around high-$z$ quasars?
• Rapidly accreting black hole of the Lyα-luminous quasar PSO J006.1240+39.2219
• Black hole mass of a quiescent galaxy hosting a Type 1 AGN at z=2.09: Implications for black hole - galaxy co-evolution and AGN quenching at high redshift
• It is Feasible to Directly Measure Black Hole Masses in the First Galaxies
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