The Discovery of Gas-Rich, Dusty Starbursts in Luminous Reddened Quasars at $z\sim 2.5$ with ALMA

Abstract

We present ALMA observations of cold dust and molecular gas in four high-luminosity, heavily reddened (A${}_{\mathrm{V}}\sim 2.5-6$ mag) Type 1 quasars at $z\sim 2.5$ with virial M${}_{\mathrm{BH}}\sim 10^{10}$M${}_{\odot }$, to test whether dusty, massive quasars represent the evolutionary link between submillimetre bright galaxies (SMGs) and unobscured quasars. All four quasars are detected in both the dust continuum and in the ${}^{12}$CO(3-2) line. The mean dust mass is 6$\times$10${}^8$M${}_{\odot }$ assuming a typical high redshift quasar spectral energy distribution (T=41K, $\beta$=1.95 or T=47K, $\beta$=1.6). The implied star formation rates are very high - $\gtrsim$1000 M${}_{\odot }$ yr${}^{-1}$ in all cases. Gas masses estimated from the CO line luminosities cover $\sim$1-5$\times 10^{10}$(${\alpha }_{\mathrm{CO}}/0.8$)M${}_{\odot }$ and the gas depletion timescales are very short - $\sim 5-20$Myr. A range of gas-to-dust ratios is observed in the sample. We resolve the molecular gas in one quasar - ULASJ2315$+$0143 ($z=2.561$) - which shows a strong velocity gradient over $\sim$20 kpc. The velocity field is consistent with a rotationally supported gas disk but other scenarios, e.g. mergers, cannot be ruled out at the current resolution of these data. In another quasar - ULASJ1234+0907 ($z=2.503$) - we detected molecular line emission from two millimetre bright galaxies within 200 kpc of the quasar, suggesting that this quasar resides in a significant over-density. The high detection rate of both cold dust and molecular gas in these sources, suggests that reddened quasars could correspond to an early phase in massive galaxy formation associated with large gas reservoirs and significant star formation.

arXiv commentMNRAS Accepted; Very minor changes to match accepted version

References in corpus (76)

• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• The Demography of Massive Dark Objects in Galaxy Centres
• Star Formation in the Milky Way and Nearby Galaxies
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• The Star Formation History of Field Galaxies
• A Deep Sub-millimeter Survey of Lensing Clusters: A New Window on Galaxy Formation and Evolution
• Cool Gas in High Redshift Galaxies
• The Sloan Digital Sky Survey Quasar Catalog V. Seventh Data Release
• The SDSS Quasar Survey: Quasar Luminosity Function from Data Release Three
• Molecular Gas at High Redshift
• Dusty Star-Forming Galaxies at High Redshift
• Combined CO & Dust Scaling Relations of Depletion Time and Molecular Gas Fractions with Cosmic Time, Specific Star Formation Rate and Stellar Mass
• The CO-to-H2 Conversion Factor and Dust-to-Gas Ratio on Kiloparsec Scales in Nearby Galaxies
• High-resolution Millimeter Imaging of Submillimeter Galaxies
• An interferometric CO survey of luminous submm galaxies
• A survey of molecular gas in luminous sub-millimetre galaxies
• Star Formation and Gas Kinematics of Quasar Host Galaxies at z~6: New insights from ALMA
• The history of star formation in dusty galaxies
• Two ten-billion-solar-mass black holes at the centres of giant elliptical galaxies
• 350 Micron Dust Emission from High Redshift Quasars
• Resolved Molecular Gas in a Quasar Host Galaxy at Redshift z=6.42
• Tracing the molecular gas in distant submillimetre galaxies via CO(1-0) imaging with the EVLA
• A massive proto-cluster of galaxies at a redshift of z {\approx} 5.3
• The XMM-Newton Wide-Field Survey in the COSMOS field (XMM-COSMOS): demography and multiwavelength properties of obscured and unobscured luminous AGN
• The Evolution of ISM Mass Probed by Dust Emission -- ALMA Observations at z = 0.3 to 2
• Evidence for Quasar Activity Triggered by Galaxy Mergers in HST Observations of Dust-reddened Quasars
• Molecular Gas in Redshift 6 Quasar Host Galaxies
• Evidence for a clumpy, rotating gas disk in a submillimeter galaxy at z=4
• Interferometric Observations of Powerful CO Emission from the three Submillimeter Galaxies at z=2.30, 2.51 and 3.35
• The First Hyper-Luminous Infrared Galaxy Discovered by WISE
• Protoclusters associated with z > 2 radio galaxies. I. Characteristics of high redshift protoclusters
• FIRST-2MASS Red Quasars: Transitional Objects Emerging from the Dust
• CO(1-0) in z>2 Quasar Host Galaxies: No Evidence for Extended Molecular Gas Reservoirs
• A massive, distant proto-cluster at z=2.47 caught in a phase of rapid formation?
• A survey of the cold molecular gas in gravitationally lensed star-forming galaxies at z>2
• The Most Luminous Galaxies Discovered by WISE
• Testing the Evolutionary Link Between Submillimetre Galaxies and Quasars: CO Observations of QSOs at z~2
• A Physical Model for z~2 Dust Obscured Galaxies
• Extended Cold Molecular Gas Reservoirs in z~3.4 Submillimeter Galaxies
• Thermal Emission from Warm Dust in the Most Distant Quasars
• The Properties of the Interstellar Medium within a Star-Forming Galaxy at z=2.3
• Blind detections of CO J = 1--0 in 11 H-ATLAS galaxies at z = 2.1--3.5 with the GBT/Zpectrometer
• Redshift 6.4 host galaxies of 10^8 solar mass black holes: low star formation rate and dynamical mass
• Multiple CO Transitions, CI, and HCN from the Cloverleaf Quasar
• High resolution imaging of molecular line emission from high redshift QSOs
• A 1.2mm MAMBO/IRAM-30m Study of Dust Emission from optically luminous z~2 Quasars
• The SCUBA Bright Quasar Survey (SBQS): 850micron observations of the z>4 sample
• Heavily reddened type 1 quasars at z > 2 I: Evidence for significant obscured black-hole growth at the highest quasar luminosities
• Heavily Reddened Quasars at z~2 in the UKIDSS Large Area Survey: A Transitional Phase in AGN Evolution
• A Detailed Study of Gas and Star Formation in a Highly Magnified Lyman Break Galaxy at z=3.07
• Submillimeter Evidence for the Coeval Growth of Massive Black Holes and Galaxy Bulges
• The far-infrared--submm spectral energy distribution of high-redshift quasars
• Submillimeter Observations of Millimeter Bright Galaxies Discovered by the South Pole Telescope
• The SCUBA Bright Quasar Survey II: unveiling the quasar epoch at submillimetre wavelengths
• Restframe Optical Spectroscopic Classifications for Submillimeter Galaxies
• Strongly star-forming rotating disks in a complex merging system at z = 4,7 as revealed by ALMA
• Submillimetre photometry of X-ray absorbed QSOs: their formation and evolutionary status
• A Total Molecular Gas Mass Census in z~2-3 Star-forming Galaxies: Low-J CO Excitation Probes of Galaxies' Evolutionary States
• Submillimetre observations of WISE-selected high-redshift, luminous, dusty galaxies
• EVLA observations of a proto-cluster of molecular gas rich galaxies at z = 4.05
• Submillimetre observations of luminous z>4 radio-quiet quasars and the contribution of AGN to the submm source population
• Revised masses of dust and gas of SLUGS FIR bright galaxies based on a recent CO survey
• Evidence for feedback in action from the molecular gas content in the z~1.6 outflowing QSO XID2028
• Radio Jet Feedback and Star Formation in Heavily Obscured Quasars at Redshifts ~0.3-3, I: ALMA Observations
• Submillimetre observations of WISE/radio-selected AGN and their environments
• The evolutionary connection between QSOs and SMGs: molecular gas in far-infrared luminous QSOs at z ~ 2.5
• Interferometric Follow-Up of WISE Hyper-Luminous Hot, Dust-Obscured Galaxies
• Hyper-luminous Reddened Broad-Line Quasars at z~2 from the VISTA Hemisphere Survey and WISE All Sky Survey
• A dynamical mass estimator for high z galaxies based on spectroastrometry
• Molecular gas observations of the reddened quasar 3C 318
• ULASJ1234+0907: The Reddest Type 1 Quasar at z=2.5 Revealed in the X-ray and Far Infra-red
• Gas reservoir of a hyper-luminous QSO at z=2.6
• Gas and dust in a z=2.8 obscured quasar
• Cold Dust Emission from X-ray AGN in the SCUBA-2 Cosmology Legacy Survey: Dependence on Luminosity, Obscuration & AGN Activity
• Heavily Reddened z~2 Type 1 Quasars II: H-alpha Star Formation Constraints from SINFONI IFU Observations
• Ground-state 12CO emission and a resolved jet at 115 GHz (rest-frame) in the radio loud quasar 3C318

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• BAT AGN Spectroscopic Survey -- XIII. The nature of the most luminous obscured AGN in the low-redshift universe
• A Big Red Dot: Scattered light, host galaxy signatures and multi-phase gas flows in a luminous, heavily reddened quasar at cosmic noon
• UV-Luminous, Star-Forming Hosts of z~2 Reddened Quasars in the Dark Energy Survey
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• 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?
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