Search and analysis of giant radio galaxies with associated nuclei (SAGAN) -- I : New sample and multi-wavelength studies

Abstract

We present the first results of a project called SAGAN, which is dedicated solely to the studies of relatively rare megaparsec-scale radio galaxies in the Universe, called giant radio galaxies (GRGs). We have identified 162 new GRGs primarily from the NVSS with sizes ranging from ~0.71 Mpc to 2.82 Mpc in the redshift range of ~0.03 - 0.95, of which 23 are hosted by quasars (giant radio quasars, GRQs). As part of the project SAGAN, we have created a database of all known GRGs, the GRG catalogue, from the literature (including our new sample); it includes 820 sources. For the first time, we present the multi-wavelength properties of the largest sample of GRGs. Our results establish that the distributions of the radio spectral index and the black hole mass of GRGs do not differ from the corresponding distributions of normal-sized radio galaxies (RGs). However, GRGs have a lower Eddington ratio (ER) than RGs. Using the mid-infrared data, we classified GRGs in terms of their accretion mode: either a high-power radiatively efficient high-excitation state, or a radiatively inefficient low-excitation state. We find that GRGs in high-excitation state statistically have larger sizes, stronger radio power, jet kinetic power, and higher ER than those in low-excitation state. Our analysis reveals a strong correlation between the ER and the scaled jet kinetic power, which suggests a disc-jet coupling. Our environmental study reveals that ~10% of all GRGs may reside at the centres of galaxy clusters, in a denser galactic environment, while the majority appears to reside in a sparse environment. We find that the probability of BCG as a GRG is quite low. We present new results for GRGs that range from black hole mass to large-scale environment properties. We discuss their formation and growth scenarios, highlighting the key physical factors that cause them to reach their gigantic size. Abridged.

arXiv commentAccepted for publication in Astronomy & Astrophysics. 14 figures, 7 tables and 7 montages. Comments are welcome. "SAGAN Project website https://sites.google.com/site/anantasakyatta/sagan"

References in corpus (117)

• Astropy: A Community Python Package for Astronomy
• Planck 2015 results. XIII. Cosmological parameters
• The Sloan Digital Sky Survey: Technical Summary
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Seventh Data Release of the Sloan Digital Sky Survey
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• 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
• A Relationship Between Nuclear Black Hole Mass and Galaxy Velocity Dispersion
• The 2dF Galaxy Redshift Survey: Spectra and redshifts
• Advection-Dominated Accretion: A Self-Similar Solution
• Ellipsoidal collapse and an improved model for the number and spatial distribution of dark matter haloes
• K-corrections and filter transformations in the ultraviolet, optical, and near infrared
• The VizieR database of Astronomical Catalogues
• Hot Accretion Flows Around Black Holes
• Efficient Generation of Jets from Magnetically Arrested Accretion on a Rapidly Spinning Black Hole
• Nuclear Activity in Nearby Galaxies
• The 6dF Galaxy Survey: Final Redshift Release (DR3) and Southern Large-Scale Structures
• The GMRT 150 MHz All-sky Radio Survey: First Alternative Data Release TGSS ADR1
• Present-Day Growth of Black Holes and Bulges: the SDSS Perspective
• Mid-Infrared Selection of AGN with the Wide-Field Infrared Survey Explorer. I. Characterizing WISE-Selected AGN in COSMOS
• Magnetically Arrested Disk: An Energetically Efficient Accretion Flow
• The 2MASS Redshift Survey - Description and Data Release
• The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
• On the fundamental dichotomy in the local radio-AGN population: accretion, evolution, and host galaxy properties
• Spectral Classification and Redshift Measurement for the SDSS-III Baryon Oscillation Spectroscopic Survey
• The LOFAR Two-metre Sky Survey - II. First data release
• The emission line - radio correlation for radio sources using the 7C Redshift Survey
• The Sloan Digital Sky Survey Quasar Catalog: Fourteenth Data Release
• A strong magnetic field around the supermassive black hole at the centre of the Galaxy
• SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. I. Science goals, survey design and instrumentation
• Hot and cold gas accretion and feedback in radio-loud active galaxies
• A catalog of 132,684 clusters of galaxies identified from Sloan Digital Sky Survey III
• The distribution and cosmic evolution of massive black hole spins
• The Nature and Evolution of Classical Double Radio Sources from Complete Samples
• The Evolution of Black Hole Mass and Spin in Active Galactic Nuclei
• B-Mode contamination by synchrotron emission from 3-years WMAP data
• The Influence of Magnetic Field Geometry on the Evolution of Black Hole Accretion Flows: Similar Disks, Drastically Different Jets
• Grand unification of AGN activity in the LambdaCDM cosmology
• Radio sources in the 2dF Galaxy Redshift Survey - II. Local radio luminosity functions for AGN and star-forming galaxies at 1.4 GHz
• A Magnetically-Switched, Rotating Black Hole Model For the Production of Extragalactic Radio Jets and the Fanaroff and Riley Class Division
• Revisiting the Fanaroff-Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS)
• Black hole mass and spin coevolution by mergers
• Black-Hole Spin and Galactic Morphology
• Giant Radio Sources
• The evolution of active galactic nuclei and their spins
• A simulation-based analytic model of radio galaxies
• Disk-Jet Coupling in Black Hole Accretion Systems I: General Relativistic Magnetohydrodynamical Models
• Magnetic flux paradigm for radio-loudness of AGN
• An X-ray survey of the 2Jy sample. I: is there an accretion mode dichotomy in radio-loud AGN?
• In search of dying radio sources in the local universe
• Magnetohydrodynamic models of astrophysical jets
• Giant radio galaxies in the LOFAR Two-metre Sky Survey-I
• FRII{\sl{CAT}}: A FIRST catalog of FR~II radio galaxies
• The MIXR sample: AGN activity versus star formation across the cross-correlation of WISE, 3XMM, and FIRST/NVSS
• The WISE properties of complete samples of radio-loud AGN
• The radio AGN population dichotomy: Green valley Seyferts versus red sequence low-excitation AGN
• A Highly Magnetized Twin-Jet Base Pinpoints a Supermassive Black Hole
• Discovery of a spiral-host episodic radio-galaxy
• The Lockman Hole project: LOFAR observations and spectral index properties of low-frequency radio sources
• A search for distant radio galaxies from SUMSS and NVSS: III. radio spectral energy distributions and the z-alpha correlation
• A new sample of giant radio galaxies from the WENSS survey: I - Sample definition, selection effects and first results
• Radio galaxies in the 2SLAQ Luminous Red Galaxy Survey: I. The evolution of low-power radio galaxies to z~0.7
• A representative survey of the dynamics and energetics of FRII radio galaxies
• A new sample of large angular size radio galaxies. I. The radio data
• Radio observations of active galactic nuclei with mm-VLBI
• J1420--0545: The radio galaxy larger than 3C236
• A Complete Sample of Megaparsec Size Double Radio Sources from SUMSS
• Estimates of Black Hole Spin Properties of 55 Sources
• J0041+3224: a new double-double radio galaxy
• Remnant radio-loud AGN in the Herschel-ATLAS field
• A 98% spectroscopically complete sample of the most powerful equatorial radio sources at 408 MHz
• A strong magnetic field in the jet base of a supermassive black hole
• Location of Gamma-ray emission and magnetic field strengths in OJ 287
• Mega parsec relativistic jets launched from an accreting supermassive blackhole in an extreme spiral galaxy
• Magellan Spectroscopy of Low-Redshift Active Galactic Nuclei
• An updated catalogue of giant radio sources
• Giant radio galaxies - II. Tracers of large-scale structure
• The new sample of Giant radio sources: I. Radio imaging, optical identification and spectroscopy of selected candidates
• Discovery of Giant Radio Galaxies from NVSS: Radio & Infrared Properties
• The evolution of SMBH spin and AGN luminosities for $z<6$ within a semi-analytic model of galaxy formation
• An asymmetric relativistic model for classical double radio sources
• Radio Galaxy Zoo: A Search for Hybrid Morphology Radio Galaxies
• Interpreting radiative efficiency in radio-loud AGN
• FRII radio galaxies in the SDSS: Observational facts
• Asymmetry of jets, lobe size and spectral index in radio galaxies and quasars
• The estimate of kinetic powers of jets in FRII radio galaxies: existence of invisible components?
• Radio Observations of the Marano Field and the Faint Radio Galaxy Population
• FLASH redshift survey - I. Observations and Catalogue
• Deep GMRT 150 MHz observations of the LBDS-Lynx region: Ultra-Steep Spectrum Radio Sources
• Deep low-frequency observations with the Giant Metrewave Radio Telescope: a search for relic radio emission
• Star Formation Rates for photometric samples of galaxies using machine learning methods
• Giant Radio Galaxies - old long-living quasars?
• A Selection of Giant Radio Sources from NVSS
• Radio sources associated with Optical Galaxies and having Unresolved or Extended morphologies (ROGUE). I. A catalog of SDSS galaxies with FIRST core identifications
• J021659-044920: a relic giant radio galaxy at z ~ 1.3
• Radio-Selected Quasars in the Sloan Digital Sky Survey
• Hard X-ray selected giant radio galaxies -- II. Morphological evidence of restarted radio activity
• The Stripe 82 1-2 GHz Very Large Array Snapshot Survey: host galaxy properties and accretion rates of radio galaxies
• A discovery of young radio sources in the cores of giant radio galaxies selected at hard X-rays
• Optical Spectroscopic Survey of High Latitude WISE Selected Sources
• Investigating the cause of the $\alpha$-$z$ relation
• Hard X-ray selected giant radio galaxies - I. The X-ray properties and radio connection
• The Stripe 82 1-2 GHz Very Large Array Snapshot Survey: Multiwavelength Counterparts
• Discovery of a new, 2.2 Mpc Giant Radio Galaxy at a redshift of 0.57
• A study of the environments of large radio galaxies using SDSS
• The Magnetic Field and Polarization Properties of Radio Galaxies in Different Accretion States
• LOFAR MSSS: Discovery of a 2.56 Mpc giant radio galaxy associated with a disturbed galaxy group
• On-axis spectroscopy of the z=0.144 radio-loud quasar HE 1434-1600: an elliptical host with a highly ionized ISM
• Radio Observations of the Hubble Deep Field South Region III: The 2.5, 5.2 and 8.7 GHz Catalogues and Radio Source Properties
• IGR J17488-2338: a newly discovered giant radio galaxy
• Relativistic beaming effects in the spectra of cores and hotspots in radio galaxies and quasars
• On the injection spectrum of relativistic electrons in high-redshift radio galaxies
• Radiation Pattern of Radio and Optical Components of Extended Radio Sources
• New Extended Radio Sources From the NVSS
• The Aquarius Superclusters II. Spectroscopic and Photometric Data

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• Radio observations of the merging galaxy cluster system Abell 3391-Abell 3395
• MIGHTEE: Are giant radio galaxies more common than we thought?
• On the Environments of Giant Radio Galaxies
• Constraining the giant radio galaxy population with machine learning and Bayesian inference
• Giant radio quasars: sample and basic properties
• A Quick Look at the 3GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey
• Modelling X-shaped Radio Galaxies: Dynamical and Emission Signatures from the Back-flow model
• Giant radio galaxies in the LoTSS Boötes deep field
• Do Radio Active Galactic Nuclei Reflect X-ray Binary Spectral States?
• Dynamical Modelling and Emission Signatures of a Candidate Dual AGN with Precessing Radio Jets
• SAGAN -- III: New insights into giant radio quasars
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• SAGAN-II : Molecular gas content of giant radio galaxies
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• Search and analysis of giant radio galaxies with associated nuclei (SAGAN) IV. Interplay with the Supercluster environment
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• Barbell-shaped giant radio galaxy with ~100 kpc kink in the jet
• Search and analysis of giant radio galaxies with associated nuclei (SAGAN) V. Study of giant double-double radio galaxies from LoTSS DR2
• An intergalactic medium temperature from a giant radio galaxy
• Soft gamma-ray selected giant radio galaxies: an update
• Finding AGN remnant candidates based on radio morphology with machine learning
• Revealing the Unusual Structure of the KAT-7-Discovered Giant Radio Galaxy J0133$-$1302
• AGN feedback in an infant galaxy cluster: the LOFAR-Chandra view of the giant FRII radio galaxy J103025+052430 at z=1.7
• J0011+3217: A peculiar radio galaxy with a one-sided secondary lobe and misaligned giant primary lobes
• The twisted jets and magnetic fields of the extended radio galaxy 4C 70.19
• Revisiting the Giant Radio Galaxy ESO 422-G028: Part I. Discovery of a neutral inflow and recent star formation in a restarted giant
• Discovery of X-shaped Morphology of the Giant Radio Galaxy GRG 0503-286
• A new distant Giant Radio Galaxy in the Boötes field serendipitously detected by Chandra
• SAGAN-VI: When Jets Meet Filaments -- Environmental Imprints on the Growth of Giant Radio Galaxies
• Formation of giant radio sources in galaxy clusters
• A Machine Learning made Catalog of FR-II Radio Galaxies from the FIRST Survey
• Optical variability of eight FRII-type quasars with 13-yr photometric light curves
• What is Inside the Double-Double Structure of the Radio Galaxy J0028+0035?
• Radio Galaxy Zoo: Giant Radio Galaxy Classification using Multi-Domain Deep Learning
• Discovery of 178 Giant Radio Galaxies in 1059 deg${}^2$ of the Rapid ASKAP Continuum Survey at 888 MHz
• Investigating the origin of X-ray jets: A case study of four hybrid morphology MOJAVE blazars
• Probing AGN duty cycle and cluster-driven morphology in a giant episodic radio galaxy
• Giant radio quasars: composite optical spectra