Deciphering the Large-Scale Environment of Radio Galaxies in the Local Universe II. A Statistical Analysis of Environmental Properties

Abstract

In our previous analysis we investigated the large-scale environment of two samples of radio galaxies (RGs) in the local Universe (i.e. with redshifts z<0.15), classified as FR I and FR II on the basis of their radio morphology. The analysis was carried out using i) extremely homogeneous catalogs and ii) a new method, known as cosmological overdensity, to investigate their large-scale environments. We concluded that, independently by the shape of their radio extended structure, RGs inhabit galaxy-rich large-scale environments with similar characteristics and richness. In the present work, we first highlight additional advantages of our procedure, that does not suffer cosmological biases and/or artifacts, and then we carry out an additional statistical test to strengthen our previous results. We also investigate properties of RG environments using those of the cosmological neighbors. We find that large-scale environments of both FRIs and FRIIs are remarkably similar and independent on the properties of central RG. Finally, we highlight the importance of comparing radio sources in the same redshift bins to obtain a complete overview of their large-scale environments.

arXiv comment15 pages, 21 figures, 3 tables, ApJS in press (pre-proof version)

References in corpus (50)

• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• Galaxy Zoo : Morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey
• The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey
• The ROSAT Brightest Cluster Sample (BCS) - I. The compilation of the sample and the cluster log N-log S distribution
• On the fundamental dichotomy in the local radio-AGN population: accretion, evolution, and host galaxy properties
• A New Method For Galaxy Cluster Detection I: The Algorithm
• The 1% Concordance Hubble Constant
• Galaxy groups in the 2dFGRS: the group-finding algorithm and the 2PIGG catalogue
• Percolation Galaxy Groups and Clusters in the SDSS Redshift Survey: Identification, Catalogs, and the Multiplicity Function
• The Last of FIRST: The Final Catalog and Source Identifications
• The Observational Distribution of Internal Velocity Dispersions in Nearby Galaxy Clusters
• Measuring the Ultimate Mass of Galaxy Clusters: Redshifts and Mass Profiles from the Hectospec Cluster Survey (HeCS)
• Efficient Photometric Selection of Quasars from the Sloan Digital Sky Survey: 100,000 z<3 Quasars from Data Release One
• Chandra and XMM-Newton Observations of a Sample of Low-Redshift FRI and FRII Radio-Galaxy Nuclei
• The Slope of the Cluster Elliptical Red Sequence: A Probe of Cluster Evolution
• The XMM Cluster Survey: Optical analysis methodology and the first data release
• Identification of the infrared non-thermal emission in Blazars
• A pilot study of the radio-emitting AGN population: the emerging new class of FR0 radio-galaxies
• Groups and clusters of galaxies in the SDSS DR8. Value-added catalogues
• An XMM-Newton study of the environments, particle content and impact of low-power radio galaxies
• Effect of the interactions and environment on nuclear activity
• HIFLUGCS: Galaxy cluster scaling relations between X-ray luminosity, gas mass, cluster radius, and velocity dispersion
• An X-ray survey of the 2Jy sample. I: is there an accretion mode dichotomy in radio-loud AGN?
• The environmental dependence of radio-loud AGN activity and star formation in the 2dFGRS
• FRII{\sl{CAT}}: A FIRST catalog of FR~II radio galaxies
• Disentangling galaxy environment and host halo mass
• FR0CAT: a FIRST catalog of FR0 radio galaxies
• The relation between morphology, accretion modes and environmental factors in local radio AGN
• FRICAT: A FIRST catalog of FRI radio galaxies
• Galaxy Cluster Environments of Radio Sources
• The nuclear properties and extended morphologies of powerful radio galaxies: the roles of host galaxy and environment
• XMM-Newton EPIC background modeling for extended sources
• X-ray-emitting Atmospheres of B2 Radio Galaxies
• The link between accretion mode and environment in radio-loud active galaxies
• The XMM Cluster Survey: X-ray analysis methodology
• Revealing the heavily obscured AGN population of High Redshift 3CRR Sources with Chandra X-ray Observations
• SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV
• The Environments of a Complete, Moderate-Redshift Sample of FIRST Bent-Double Radio Sources
• The Chandra Survey of Extragalactic Sources in the 3CR Catalog: X-ray Emission from Nuclei, Jets, and Hotspots in the Chandra Archival Observations
• High redshift FRII radio sources: large-scale X-ray environment
• FIRST Bent-Double Radio Sources: Tracers of High-Redshift Clusters
• Chandra Observations of 3C Radio Sources with z<0.3 II: completing the snapshot survey
• Quasar candidates selection in the Virtual Observatory era
• Radio-loud AGN: is there a link between luminosity and cluster environment?
• Unveiling the nature of the unidentified gamma-ray sources V: analysis of the radio candidates with the kernel density estimation
• Galaxy And Mass Assembly (GAMA): The environments of high- and low- excitation radio galaxies
• The 3CR Chandra snapshot survey: extragalactic radio sources with 0.5$<z<$1.0
• Deciphering the large-scale environment of radio galaxies in the local Universe: where do they born, grow and die?
• An X-ray survey of the 2Jy sample. II: X-ray emission from extended structures
• The Clustering Of Galaxies Around Radio-Loud AGNs

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• FR-type radio sources at 3 GHz VLA-COSMOS: Relation to physical properties and large-scale environment
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• Raining in MKW 3s: a Chandra-MUSE analysis of X-ray cold filaments around 3CR 318.1
• A Novel Method for Estimating the Ambient Medium Density Around Distant Radio Sources from Their Observed Radio Spectra
• A new distant Giant Radio Galaxy in the Boötes field serendipitously detected by Chandra
• High frequency radio imaging of 3CR 403.1 with the Sardinia Radio Telescope
• Hosts and environments: a (large-scale) radio history of AGN and star-forming galaxies
• Distance estimation of gamma-ray emitting BL Lac objects from imaging observations