Compact radio cores: from the first black holes to the last

Abstract

One of the clearest signs of black hole activity is the presence of a compact radio core in the nuclei of galaxies. With the Square Kilometer Array (SKA) these cores can be used to study the evolution of black holes throughout the universe and even to detect the very first generation of supermassive black holes. We start by introducing some of the basic properties of compact radio cores and how they scale with accretion power. The relative contribution of jets and radio cores to the Spectral Energy Distribution (SED) is strongest in sub-Eddington black holes but also present in the most luminous objects. Radio and X-rays are correlated as a function of black hole mass such that the most massive black holes are most suited for radio detections. We present a radio core luminosity function for the present universe down to the least luminous AGN. The SKA will essentially detect all dormant black holes in the local universe, such as that in our Milky Way, out to several tens of Megaparsecs. It will also be able to see black holes in the making at redshifts z>10 for black hole masses larger than 10^7 M_sun. Finally, we suggest that the first generation of black holes may have jets that are frustrated in their dense environment and thus appear as Gigahertz-Peaked-Spectrum (GPS) sources. Since their intrinsic size and peak frequency are related and angular size and frequency scale differently with redshift, there is a unique region in parameter space that should be occupied by emerging black holes in the epoch of reionization. This can be well probed by radio-only methods with the SKA. (abridged)

arXiv commentlatex, 16 pages, 11 figures, to appear in: "Science with the Square Kilometer Array," eds. C. Carilli and S. Rawlings, New Astronomy Reviews, (Elsevier: Amsterdam)

References in corpus (38)

• Unified Schemes for Radio-Loud Active Galactic Nuclei
• A Fundamental Relation Between Supermassive Black Holes and Their Host Galaxies
• A Relationship Between Nuclear Black Hole Mass and Galaxy Velocity Dispersion
• Advection-Dominated Accretion: Underfed Black Holes and Neutron Stars
• Advection-Dominated Accretion and the Spectral States of Black Hole X-Ray Binaries: Application to Nova Muscae 1991
• A Unifying View of the Spectral Energy Distributions of Blazars
• A fundamental plane of black hole activity
• Evidence for Reionization at z ~ 6: Detection of a Gunn-Peterson Trough in a z=6.28 Quasar
• Wilkinson Microwave Anisotropy Probe (WMAP) First Year Observations: TE Polarization
• Sources of Relativistic Jets in the Galaxy
• A Survey of z>5.7 Quasars in the Sloan Digital Sky Survey II: Discovery of Three Additional Quasars at z>6
• A Scheme to Unify Low-Power Accreting Black Holes - Jet-Dominated Accretion Flows and the Radio/X-Ray Correlation
• The formation of massive black holes through collision runaway in dense young star clusters
• A universal radio/X-ray correlation in low/hard state black hole binaries
• A jet model for the broadband spectrum of XTE J1118+480: Synchrotron emission from radio to X-rays in the Low/Hard spectral state
• The Supermassive Black Hole at the Galactic Center
• Powerful jets from black hole X-ray binaries in Low/Hard X-ray states
• GRS 1915+105 and the Disc-Jet Coupling in Accreting Black Hole Systems
• The Nature and Evolution of Classical Double Radio Sources from Complete Samples
• Improved Models of Stellar Core Collapse and Still no Explosions: What is Missing?
• A 3x10^9 solar mass black hole in the quasar SDSS J1148+5251 at z=6.41
• A Jet-ADAF model for Sgr A*
• Jet-dominated states: an alternative to advection across black hole event horizons in `quiescent' X-ray binaries
• Exploring the Role of Jets in the Radio/X-ray Correlations of GX339-4
• Hysteresis in the Light Curves of Soft X-ray Transients
• Radio Sources in Low-Luminosity Active Galactic Nuclei. III. "AGNs" in a Distance-Limited Sample of "LLAGNs"
• The dividing line between FR I and FR II radio--galaxies
• A Search for "Dwarf" Seyfert Nuclei. VI. Properties of Emission-Line Nuclei in Nearby Galaxies
• On the evolution of young radio-loud AGN
• HI 21cm absorption beyond the epoch of re-ionization
• Radio Sources in Low-Luminosity Active Galactic Nuclei. II. VLBI Detections of Compact Radio Cores and Jets in a Sample of LINERs
• Toward a Unified View of Black Hole High Energy States
• Statistical Properties of Radio Emission from the Palomar Seyfert Galaxies
• The accretion history of the Universe with the SKA
• Radio Emission as a Test of the Existence of Intermediate Mass Black Holes in Globular Clusters and Dwarf Spheroidal Galaxies
• Asymmetry of jets, lobe size and spectral index in radio galaxies and quasars
• 21 cm Tomography of the High-Redshift Universe with the Square Kilometer Array
• Using SKA to observe relativistic jets from X-ray binary systems

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