Optical Spectroscopy of Dual Quasar Candidates from the Subaru HSC-SSP program

Abstract

We report on a spectroscopic program to search for dual quasars using Subaru Hyper Suprime-Cam (HSC) images of SDSS quasars which represent an important stage during galaxy mergers. Using Subaru/FOCAS and Gemini-N/GMOS, we identify three new physically associated quasar pairs having projected separations less than 20 kpc, out of 26 observed candidates. These include the discovery of the highest redshift ($z=3.1$) quasar pair with a separation $<$ 10 kpc. Based on the sample acquired to date, the success rate of identifying physically associated dual quasars is $19\%$ when excluding stars based on their HSC colors. Using the full sample of six spectroscopically confirmed dual quasars, we find that the black holes in these systems have black hole masses ($M_{BH}\sim 10^{8-9}{M}_{\odot }$) similar to single SDSS quasars as well as their bolometric luminosities and Eddington ratios. We measure the stellar mass of their host galaxies based on 2D image decomposition of the five-band ($grizy$) optical emission and assess the mass relation between supermassive black holes (SMBHs) and their hosts. Dual SMBHs appear to have elevated masses relative to their host galaxies. Thus mergers may not necessarily align such systems onto the local mass relation, as suggested by the Horizon-AGN simulation. This study suggests that dual luminous quasars are triggered prior to the final coalescence of the two SMBHs, resulting in early mass growth of the black holes relative to their host galaxies.

arXiv comment36 pages, 21 figures, 4 tables

References in corpus (85)

• A Fundamental Relation Between Supermassive Black Holes and Their Host Galaxies
• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• The Demography of Massive Dark Objects in Galaxy Centres
• Energy input from quasars regulates the growth and activity of black holes and their host galaxies
• SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
• The Host Galaxies and Classification of Active Galactic Nuclei
• A Unified, Merger-Driven Model for the Origin of Starbursts, Quasars, the Cosmic X-Ray Background, Supermassive Black Holes and Galaxy Spheroids
• Cosmic-Ray Rejection by Laplacian Edge Detection
• On the Black Hole Mass - Bulge Mass Relation
• A Catalog of Quasar Properties from SDSS DR7
• The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra
• CIGALE: a python Code Investigating GALaxy Emission
• Determining Central Black Hole Masses in Distant Active Galaxies and Quasars. II. Improved Optical and UV Scaling Relationships
• Spectral Energy Distributions and Multiwavelength Selection of Type 1 Quasars
• The Hyper Suprime-Cam SSP Survey: Overview and Survey Design
• The Sloan Digital Sky Survey Quasar Catalog V. Seventh Data Release
• Observational constraints on growth of massive black holes
• Dancing in the dark: galactic properties trace spin swings along the cosmic web
• Black Holes, Galaxy Formation, and the M_BH-sigma Relation
• Galaxy Clustering in the Completed SDSS Redshift Survey: The Dependence on Color and Luminosity
• The obscured growth of massive black holes
• Spectral Classification and Redshift Measurement for the SDSS-III Baryon Oscillation Spectroscopic Survey
• A comprehensive classification of galaxies in the SDSS: How to tell true from fake AGN?
• An Empirical Ultraviolet Template for Iron Emission in Quasars as Derived from I Zw 1
• Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program
• The Hyper Suprime-Cam Software Pipeline
• Black Hole Mass Estimates from Reverberation Mapping and from Spatially Resolved Kinematics
• The Sloan Digital Sky Survey Quasar Catalog: Fourteenth Data Release
• The Sloan Digital Sky Survey Quasar Catalog: twelfth data release
• Stellar SEDs from 0.3-2.5 Microns: Tracing the Stellar Locus and Searching for Color Outliers in SDSS and 2MASS
• Preparing Red-Green-Blue (RGB) Images from CCD Data
• Red and Reddened Quasars in the Sloan Digital Sky Survey
• Galaxy pairs in the Sloan Digital Sky Survey - IV: Interactions trigger AGN
• The diversity of quasars unified by accretion and orientation
• Cooling flows and quasars: II. Detailed models of feedback modulated accretion flows
• Broad Emission Line Shifts in Quasars: An Orientation Measure for Radio-Quiet Quasars?
• The non-causal origin of the black hole-galaxy scaling relations
• Lenstronomy: multi-purpose gravitational lens modelling software package
• A Comparison of Stellar and Gaseous Kinematics in the Nuclei of Active Galaxies
• Narrow-line region gas kinematics of 24,264 optically-selected AGN: the radio connection
• The Astrophysics of Nanohertz Gravitational Waves
• Binary Quasars in the Sloan Digital Sky Survey: Evidence for Excess Clustering on Small Scales
• The Frequency and Radio Properties of Broad Absorption Line Quasars
• Cooling flows and quasars: different aspects of the same phenomenon? I. Concepts
• The cosmic evolution of massive black holes in the Horizon-AGN simulation
• The Sloan Digital Sky Survey quasar catalog: ninth data release
• The Quest for Dual and Binary Supermassive Black Holes: A Multi-Messenger View
• Colors of 2625 Quasars at 0<z<5 Measured in the Sloan Digital Sky Survey Photometric System
• On the Correlations between Galaxy Properties and Supermassive Black Hole Mass
• Spectral properties of quasars from Sloan Digital Sky Survey data release 14: The catalog
• Growth and activity of black holes in galaxy mergers with varying mass ratios
• The SDSS Coadd: 275 deg^2 of Deep SDSS Imaging on Stripe 82
• Galaxy Interactions Trigger Rapid Black Hole Growth: an unprecedented view from the Hyper Suprime-Cam Survey
• The mass relations between supermassive black holes and their host galaxies at 1<z<2 with HST-WFC3
• The impact of galaxy interactions on AGN activity in zCOSMOS
• Chandra unveils a binary Active Galactic Nucleus in Mrk463
• Type 2 Active Galactic Nuclei with Double-Peaked [OIII] Lines. II. Single AGNs with Complex Narrow-Line Region Kinematics are More Common than Binary AGNs
• Very Small-Scale Clustering and Merger Rate of Luminous Red Galaxies
• The Sloan Digital Sky Survey Quasar Lens Search. V. Final Catalog from the Seventh Data Release
• Discovery of Four kpc-Scale Binary AGNs
• Quasars Probing Quasars VI. Excess HI Absorption Within One Proper Mpc of z~2 Quasars
• Binary Quasars at High Redshift I: 24 New Quasar Pairs at z ~ 3-4
• Do the Most Massive Black Holes at $z=2$ Grow via Major Mergers?
• A population of luminous accreting black holes with hidden mergers
• Quasars Probing Quasars VII. The Pinnacle of the Cool Circumgalactic Medium Surrounds Massive z~2 Galaxies
• Dual Supermassive Black Hole Candidates in the AGN and Galaxy Evolution Survey
• A survey of dual active galactic nuclei in simulations of galaxy mergers: frequency and properties
• The Sloan Digital Sky Survey Quasar Lens Search. II. Statistical Lens Sample from the Third Data Release
• SDSS J1254+0846: A Binary Quasar Caught in the Act of Merging
• The clustering of luminous red galaxies at z $\sim$ 0.7 from eBOSS and BOSS data
• Very small-scale clustering of quasars from a complete quasar lens survey
• Binary Quasars at High Redshift II: Sub-Mpc Clustering at z ~ 3-4
• Discovery of a close-separation binary quasar at the heart of a z~0.2 merging galaxy and its implications for low-frequency gravitational waves
• The Sizes of Quasar Host Galaxies with the Hyper Suprime-Cam Subaru Strategic Program
• Dual supermassive black holes at close separation revealed by the Hyper Suprime-Cam Subaru Strategic Program
• A hidden population of high-redshift double quasars unveiled by astrometry
• PRIMUS+DEEP2: The Dependence of Galaxy Clustering on Stellar Mass and Specific Star Formation Rate at 0.2 < z < 1.2
• The Sloan Digital Sky Survey Quasar Lens Search. IV. Statistical Lens Sample from the Fifth Data Release
• Clustering on very small scales from a large sample of confirmed quasar pairs: Does quasar clustering track from Mpc to kpc scales?
• The Sloan Digital Sky Survey Reverberation Mapping Project: Post-Starburst Signatures in Quasar Host Galaxies at z < 1
• The NANOGrav 11yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500Mpc
• Near-IR spectroscopy of luminous LoBAL quasars at 1<z<2.5
• Subaru Hyper Suprime-Cam View of Quasar Host Galaxies at z < 1
• Gravitational waves from supermassive black hole binaries in ultra-luminous infrared galaxies
• HST and LAMOST discover a dual active galactic nucleus in J0038+4128

Cited by in corpus (4)

• A close quasar pair in a disk-disk galaxy merger at z = 2.17
• A Candidate Kiloparsec-scale Quasar Pair at $z=5.66$
• Galaxy shapes of Light (GaLight): a 2D modeling of galaxy images
• Small-scale double quasars discovered in the DECam Legacy Survey