X-ray properties of the Youngest Radio Sources and their Environments

Abstract

We present the results of the first X-ray study of a sample of 16 young radio sources classified as Compact Symmetric Objects (CSOs). We observed six of them for the first time in X-rays using {\it Chandra}, re-observed four with the previous {\it XMM-Newton} or {\it Beppo-SAX} data, and included six other with the archival data. All the sources are nearby, $z<1$ with the age of their radio structures ($<3000$~years) derived from the hotspots advance velocity. Our results show heterogeneous nature of the CSOs indicating a complex environment associated with young radio sources. The sample covers a range in X-ray luminosity, $L_{2-10\mathrm{keV}}\sim 10^{41}$-$10^{45}$\,erg\,s${}^{-1}$, and intrinsic absorbing column density of $N_H\simeq 10^{21}$--10${}^{22}$\,cm${}^{-2}$. In particular, we detected extended X-ray emission in 1718$-$649; a hard photon index of $\Gamma \simeq 1$ in 2021$+$614 and 1511$+$0518 consistent with either a Compton thick absorber or non-thermal emission from compact radio lobes, and in 0710$+$439 an ionized iron emission line at $E_{rest}=(6.62\pm 0.04)$\,keV and EW $\sim 0.15-$1.4\,keV, and a decrease by an order of magnitude in the 2-10 keV flux since the 2008 {\it XMM-Newton} observation in 1607$+$26. We conclude that our pilot study of CSOs provides a variety of exceptional diagnostics and highlights the importance of deep X-ray observations of large samples of young sources. This is necessary in order to constrain theoretical models for the earliest stage of radio source evolution and study the interactions of young radio sources with the interstellar environment of their host galaxies.

arXiv commentto be published in the Astrophysical Journal

References in corpus (87)

• Astropy: A Community Python Package for Astronomy
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• The many lives of active galactic nuclei: cooling flows, black holes and the luminosities and colours of galaxies
• Collisional Plasma Models with APEC/APED: Emission Line Diagnostics of Hydrogen-like and Helium-like Ions
• Statistics: Handle with Care, Detecting Multiple Model Components with the Likelihood Ratio Test
• An XMM-Newton survey of broad iron lines in Seyfert galaxies
• The XMM-Newton Serendipitous Survey. V. The Second XMM-Newton Serendipitous Source Catalogue
• Sherpa: a Mission-Independent Data Analysis Application
• X-ray Spectra of a large sample of Quasars with ASCA
• Three years Swift-BAT Survey of AGN: reconciling theory and observations?
• AGN-controlled cooling in elliptical galaxies
• Extreme X-ray spectral variability in the Seyfert 2 Galaxy NGC 1365
• X-ray Spectral Properties of the BAT AGN Sample
• XMM-Newton EPIC observations of 21 low-redshift PG quasars
• Changing look: from Compton-thick to Compton-thin, or the re-birth of fossil AGN
• Fast outflows in compact radio sources: evidence for AGN-induced feedback in the early stages of radio source evolution
• The Dynamic Evolution of Young Extragalactic Radio Sources
• Radio Jets Clearing the Way Through a Galaxy: Watching Feedback in Action
• Relativistic Jet Feedback in Evolving Galaxies
• The active nuclei of z<1.0 3CRR radio sources
• Proper Motions in Compact Symmetric Objects
• Accretion Disk Model of Short-Timescale Intermittent Activity in Young Radio Sources
• Dating COINS: Kinematic Ages for Compact Symmetric Objects
• X-ray Signatures of Evolving Radio Galaxies
• X-ray absorption by Broad Line Region Clouds in Mrk 766
• Intermittent radio galaxies and source statistics
• Jet acceleration of the fast molecular outflows in the Seyfert galaxy IC5063
• Shocks and sonic booms in the intracluster medium: X-ray shells and radio galaxy activity
• A survey of Low Luminosity Compact sources and its implication for evolution of radio-loud AGNs. I. Radio data
• Strong molecular hydrogen emission and kinematics of the multiphase gas in radio galaxies with fast jet-driven outflows
• On the Evolution of and High-Energy Emission from GHz-Peaked-Spectrum Sources
• A Suzaku survey of Fe K lines in Seyfert 1 AGN
• Fe-K line probing of material around the AGN central engine with Suzaku
• Cross-calibration of the X-ray Instruments onboard the Chandra, INTEGRAL, RXTE, Suzaku, Swift, and XMM-Newton Observatories using G21.5-0.9
• XMM and Chandra measurements of the AGN intrinsic absorption: dependence on luminosity and redshift
• Observational Constraints on the Dependence of Radio-Quiet Quasar X-ray Emission on Black Hole Mass and Accretion Rate
• The Fifth Data Release Sloan Digital Sky Survey/XMM-Newton Quasar Survey
• The HI absorption "Zoo"
• X-ray reprocessing in Seyfert Galaxies: simultaneous XMM-Newton/BeppoSAX observations
• Kinematic Age Estimates for 4 Compact Symmetric Objects from the Pearson-Readhead Survey
• Broadband Spectral Modeling of the Extreme Gigahertz-Peaked Spectrum Radio Source PKS B0008-421
• Spitzer mid-IR spectroscopy of powerful 2Jy and 3CRR radio galaxies. I. Evidence against a strong starburst-AGN connection in radio-loud AGN
• X-ray Properties of the GigaHertz-Peaked and Compact Steep Spectrum Sources
• The structure and radiation spectra of illuminated accretion discs in AGN. I. Moderate illumination
• Starburst radio galaxies: general properties, evolutionary histories and triggering
• VLBI observations of 10 CSO candidates: expansion velocities of hot spots
• On Computing Upper Limits to Source Intensities
• The X-ray view of Giga-Hertz Peaked Spectrum Radio Galaxies
• The nature of the jet-driven outflow in the radio galaxy 3C305
• Ionized iron Kαlines in AGN X-ray spectra
• Gamma-ray Spectral Evolution of NGC1275 Observed with Fermi-LAT
• Recurrent radio emission and gas supply: the case of the radio galaxy B2 0258+35
• The hard X-ray view of Giga-Hertz Peaked Spectrum Radio Galaxies
• The X-ray properties of young radio-loud AGN
• X-ray Emitting GHz-Peaked Spectrum Galaxies: Testing a Dynamical-Radiative Model with Broad-Band Spectra
• High redshift FRII radio galaxies: X-ray properties of the cores
• Chandra monitoring of UGC 4203: the structure of the X-ray absorber
• Markarian 6: shocking the environment of an intermediate Seyfert
• Simulated spectral states of AGN and observational predictions
• Samples and statistics of CSS and GPS sources
• Spitzer mid-infrared spectroscopy of compact symmetric objects: What powers radio-loud active galactic nuclei?
• Drilled by the jet? XMM-Newton discovers a Compton-thick AGN in the GPS galaxy Mkn668
• Fe K emission from active galaxies in the COSMOS field
• A Non-thermal Study of the Brightest Cluster Galaxy NGC 1275 - The Gamma-Radio Connection Over Four Decades
• The Spectral Variability of the GHz-Peaked Spectrum Radio Source PKS 1718-649 and a Comparison of Absorption Models
• The iron K feature in Narrow Line Seyfert 1's: evidence for a P Cygni profile?
• Jet Emission in Young Radio Sources: a Fermi-LAT Gamma-ray View
• The Kinematic and Spectral Ages of the Compact Radio Source CTD 93
• Probing the gas content of radio galaxies through HI absorption stacking
• An Archival Chandra and XMM-Newton Survey of Type 2 Quasars
• What can we learn about quasars from alpha_OX measurements in galactic black hole binaries?
• Star formation in the hosts of GHz peaked spectrum and compact steep spectrum radio galaxies
• The unusual multiwavelength properties of the gamma-ray source PMNJ1603-4904
• Fueling the central engine of radio galaxies. I. The molecular/dusty disk of 4C 31.04
• First X-ray observations of Low-Power Compact Steep Spectrum Sources
• Implications for the structure of the relativistic jet from multiwavelength observations of NGC 6251
• Deep Chandra X-ray Imaging of a Nearby Radio Galaxy 4C+29.30: X-ray/Radio Connection
• A redshifted Fe K$\alpha$ line from the unusual gamma-ray source PMN J1603-4904
• X-ray emission from GPS and CSS sources
• The Spectral Energy Distributions of Red 2MASS AGN
• The nature of the absorbing torus in compact Radio Galaxies
• Broad-band Jet Emission in Young and Powerful Radio Sources: the Case of the CSS Quasar 3C 186
• The impact of the early stages of radio source evolution on the ISM of the host galaxies
• Seven-frequency VLBI observations of the GHz-Peaked-Spectrum source OQ 208
• N_H - N_HI correlation in Gigahertz-peaked-spectrum galaxies
• Ionization structure and Fe K$\alpha$ energy for irradiated accretion disks
• Emission line studies of young radio sources

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• ALMA observations of AGN fuelling: the case of PKS B1718-649
• The Impact of the Environment on the Early Stages of Radio Source Evolution
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• Correlation between X-ray and radio absorption in compact radio galaxies
• TXS 0128+554: A Young Gamma-Ray Emitting AGN With Episodic Jet Activity
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• Caltech-NRAO Stripe 82 Survey (CNSS) Paper V: AGNs that transitioned to radio-loud state
• Where are Compton-thick radio galaxies? A hard X-ray view of three candidates
• PKSB1740-517: An ALMA view of the cold gas feeding a distant interacting young radio galaxy
• Mid-Infrared Diagnostics of the Circumnuclear Environments of the Youngest Radio Galaxies
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• First Hard X-ray Observation of a Compact Symmetric Object: A Broadband X-ray Study of a radio galaxy OQ+208 with NuSTAR and Chandra
• X-ray Properties of Young Radio Quasars at z > 4.5
• Jet-ISM interaction in NGC 1167 / B2 0258+35, A LINER with an AGN past
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• Discovery of Candidate X-ray Jets in High-Redshift Quasars
• X-ray Emission of the $\gamma$-ray Loud Young Radio Galaxy NGC 3894
• Testing for Shock-Heated X-ray Gas Around Compact Steep Spectrum Radio Galaxies
• Jet-Feedback on kpc scales: a review
• Focusing on the extended X-ray emission in 3C 459 with a Chandra follow-up observation
• Investigating source confusion in PMN J1603$-$4904
• Identifying compact symmetric objects with high-precision VLBI and Gaia astrometry
• Chandra View of the LINER-type Nucleus in the Radio-Loud Galaxy CGCG 292-057: Ionized Iron Line and Jet-ISM Interactions
• Tracing X-ray and HI absorption in peaked spectrum sources
• Absorption variability as a probe of the multiphase interstellar media surrounding active galaxies
• 1321+045: a Compact Steep Spectrum radio source in a cool-core galaxy cluster