The quest for dual and binary supermassive black holes: A multi-messenger view

  title={The quest for dual and binary supermassive black holes: A multi-messenger view},
  author={Alessandra De Rosa and Cristian Vignali and Tamara Bogdanovi'c and Pedro R. Capelo and Maria Charisi and Massimo Dotti and Bernd Husemann and Elisabeta Lusso and Lucio Mayer and Zsolt Paragi and Jessie C. Runnoe and Alberto Sesana and Lisa K. Steinborn and Stefano Bianchi and Monica Colpi and Luciano del Valle and S{\'a}ndor Frey and Krisztina 'E. Gab'anyi and Margherita Giustini and Matteo Guainazzi and Zolt{\'a}n Haiman and Noelia Herrera Ruiz and Rub{\'e}n Herrero-Illana and Kazushi Iwasawa and S. Komossa and Davide Lena and Nora Loiseau and Miguel A. P{\'e}rez-Torres and Enrico Piconcelli and Marta Volonteri},
  journal={New Astronomy Reviews},
The quest for binary and dual supermassive black holes (SMBHs) at the dawn of the multi-messenger era is compelling. Detecting dual active galactic nuclei (AGN) – active SMBHs at projected separations larger than several parsecs – and binary AGN – probing the scale where SMBHs are bound in a Keplerian binary – is an observational challenge. The study of AGN pairs (either dual or binary) also represents an overarching theoretical problem in cosmology and astrophysics. The AGN triggering calls… Expand
A Candidate Kiloparsec-scale Quasar Pair at z = 5.66
  • M. Yue, Xiaohui Fan, Jinyi Yang, Feige Wang
  • Physics
  • The Astrophysical Journal Letters
  • 2021
We report the discovery of a close quasar pair candidate at z = 5.66, J2037–4537. J2037–4537 is resolved into two quasar images at the same redshift in ground-based observations. Follow-upExpand
European VLBI Network Observations of the Proposed Dual AGN SDSS J101022.95+141300.9
During galaxy merger events, the supermassive black holes in the center of the galaxies may form a pair of active galactic nuclei (AGN) with kiloparsec-scale or even parsec-scale separation.Expand
The Erratic Path to Coalescence of LISA Massive Black Hole Binaries in Subparsec-resolution Simulations of Smooth Circumnuclear Gas Disks
We report on high-resolution simulations that explore the orbital decay of massive black hole (MBH) pairs with masses between $10^5$ and $10^7 M_{\odot}$ embedded in a circumnuclear gas disk (CND).Expand
Dual Supermassive Black Holes at Close Separation Revealed by the Hyper Suprime-Cam Subaru Strategic Program
The unique combination of superb spatial resolution, wide-area coverage, and deep depth of the optical imaging from the Hyper Suprime-Cam (HSC) Subaru Strategic Program is utilized to search for dualExpand
A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IV. Rapidly Growing (Super)Massive Black Holes in Extremely Radio-loud Galaxies
We present the optical and infrared properties of 39 extremely radio-loud galaxies discovered by cross-matching the Subaru/Hyper Suprime-Cam (HSC) deep optical imaging survey and VLA/FIRST 1.4 GHzExpand
A hard X-ray view of luminous and ultra-luminous infrared galaxies in GOALS – I. AGN obscuration along the merger sequence
  • C. Ricci, G. Privon, +25 authors S Yamada
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • 2021
The merger of two or more galaxies can enhance the inflow of material from galactic scales into the close environments of active galactic nuclei (AGNs), obscuring and feeding the supermassive blackExpand
A possible sub-kiloparsec dual AGN buried behind the galaxy curtain
Although thousands of galaxy mergers are known, only a handful of sub-kiloparsec-scale supermassive black hole (SMBH) pairs have been confirmed so far, leaving a huge gap between the observed andExpand
An XMM–Newton study of active–inactive galaxy pairs
While theory and simulations indicate that galaxy mergers play an important role in the cosmological evolution of accreting black holes and their host galaxies, samples of Active Galactic NucleiExpand
Detecting subparsec supermassive binary black holes: Long-term monitoring perspective
Here we consider the perspective to detect sub-pc super-massive binary black-hole (SMBBH) systems using long-term photometric and spectroscopic monitoring campaigns of active galactic nuclei. ThisExpand
Distinguishing Tidal Disruption Events from Impostors
Recent claimed detections of tidal disruption events (TDEs) in multi-wavelength data have opened potential new windows into the evolution and properties of otherwise dormant supermassive black holesExpand


Dynamical friction. I. General considerations: the coefficient of dynamical friction
In this paper it is shown that a star must experience dynamical friction, i.e., it must suffer from a systematic tendency to be decelerated in the direction of its motion. 'This dynamical frictionExpand
Binary Quasars at High Redshift
  • I. 24 New Quasar Pairs at z ̃ 3-4. ApJ 719, 1672–1692.
  • 2010
Binary Quasars at High Redshift. I. 24 New Quasar Pairs at z ~ 3-4
The clustering of quasars on small scales yields fundamental constraints on models of quasar evolution and the buildup of supermassive black holes. This paper describes the first systematic survey toExpand
Selfregulated growth of supermassive black holes by a dual jet-heating active galactic nucleus feedback mechanism: methods, tests and implications for cosmological simulations
  • MNRAS 420 (3), 2662– 2683.
  • 2012
Understanding Dual Active Galactic Nucleus Activation in the nearby Universe
We study the fraction of dual active galactic nuclei (AGNs) in a sample of 167 nearby (z < 0.05), moderate-luminosity, ultra-hard X-ray-selected AGNs from the all-sky Swift Burst Alert TelescopeExpand
Galaxy pairs in the Sloan Digital Sky Survey - IV: Interactions trigger AGN
Galaxy-galaxy interactions are predicted to cause gas inflows leading to enhanced nuclear star formation. In this paper we test the further prediction that the gas inflows lead to enhanced accretionExpand
A radio Census of binary supermassive black holes
Using archival Very Long Baseline Interferometry (VLBI) data for 3114 radio-luminous active galactic nuclei, we searched for binary supermassive black holes using a radio spectral index mappingExpand
Quasar Clustering at 25 h−1 kpc from a Complete Sample of Binaries*
We present spectroscopy of binary quasar candidates, with component separations of 3'' ≤ Δ θ < 6'', selected from Data Release 4 of the Sloan Digital Sky Survey (SDSS DR4) using kernel densityExpand
A Cosmology Calculator for the World Wide Web
A cosmology calculator that computes times and distances as a function of redshift for user- defined cosmological parameters has been made available online. This paper gives the formulae used by theExpand
Hubble Space Telescope ACS Imaging of the GOALS Sample: Quantitative Structural Properties of Nearby Luminous Infrared Galaxies with L_(IR) > 10^(11.4) L_☉
A Hubble Space Telescope/Advanced Camera for Surveys study of the structural properties of 85 luminous and ultraluminous (L_(IR) > 10^(11.4) L_☉) infrared galaxies (LIRGs and ULIRGs) in the GreatExpand