Completion of a Survey and Detailed Study of Double-Peaked Emission Lines in Radio-Loud AGNs

Abstract

We report the completion of a survey of radio-loud AGNs begun in an earlier paper, aimed finding and studying broad, double-peaked Balmer lines. We present Ha spectra of 13 broad-lined objects (3 with double-peaked Ha profiles). The final sample includes 106 radio-loud AGNs. 20% of the objects have Ha lines with double peaks or twin shoulders and of these, 60% can be fitted quite well with a model attributing the emission to a circular, relativistic, disk. We also compare the Hb and MgII profiles of 4 objects with models of photoionized accretion disks and find them to be in reasonable agreement. Double-peaked emitters stand out on the basis of the following properties: (1) unusually large contribution of starlight to the optical continuum around Ha, (2) unusually large equivalent widths of low-ionization lines ([OI] and [SII]), (3) unusually large [OI]/[OIII] ratios, and (4) Balmer lines on average twice as broad as in other radio-loud AGNs. We evaluate models for the origin of the lines and we find accretion-disk emission to be the most successful one because it can explain the double-peaked line profiles and it also offers an interpretation of the spectroscopic properties of these objects. Aternative suggestions (binary broad-line regions, bipolar outflows, anisotropically illuminated spherical broad-line regions) are unsatisfactory because (a) they fail direct observational tests, (b) they cannot explain the unusual properties of double-peaked emitters self-consistently, or (c) their physical foundations appear to be unsound. We suggest that in double-peaked emitters and accretion- powered LINERs the accretion rate is considerably lower than the Eddington rate with the consequence that the inner accretion disk takes the form of an ion torus and the wind that normally enshrouds the disk proper is absent.

arXiv comment25 pages, in emulateapj format, to appear in Ap.J. vol 599, Dec 20, 2003

References in corpus (42)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Advection-Dominated Accretion: A Self-Similar Solution
• On the Fate of Gas Accreting at a Low Rate onto a Black Hole
• Dynamics of line-driven disk winds in Active Galactic Nuclei
• Advection-Dominated Accretion: Self-Similarity and Bipolar Outflows
• A Structure for Quasars
• ASCA observations of Seyfert 1 galaxies: II. Relativistic Iron K-alpha emission
• Self-Similar Accretion Flows with Convection
• Chandra Snapshot Observations of Low-Luminosity AGNs with a Compact Radio Source
• Evidence for Supermassive Black Holes in Active Galactic Nuclei from Emission-Line Reverberation
• Double-Peaked Low-Ionization Emission Lines in Active Galactic Nuclei
• An X-ray Spectral Survey of Radio-Loud AGN With ASCA
• Two-dimensional models of hydrodynamical accretion flows into black holes
• Low radiative efficiency accretion in the nuclei of elliptical galaxies
• Radiation-Driven Warping: The Origin of Warps and Precession in Accretion Disks
• Evolution of the Nuclear Accretion Disk Emission in NGC 1097: Getting Closer to the Black Hole
• The Profiles of H-Beta and [OIII] 5007 in Radio-Loud Quasars
• Double-Peaked Broad Emission Lines in NGC 4450 and Other LINERs
• Rejection of the Binary Broad-Line Region Interpretation of Double-Peaked Emission Lines in Three Active Galactic Nuclei
• Steps toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XII. Ground-Based Monitoring of 3C 390.3
• Evidence for Binary Orbital Motion of a Quasar Broad-Line Region
• RBSC-NVSS Sample. I. Radio and Optical Identifications of a Complete Sample of 1500 Bright X-ray Sources
• Reverberation Mapping and the Disk Wind Model of the Broad Line Region
• Evidence For A Precessing Accretion Disk in the Nucleus of NGC 1097
• X-ray and soft gamma-ray spectra of Broad-Line Radio Galaxies
• Hard X-Ray Spectra of Broad-Line Radio Galaxies from the Rossi X-Ray Timing Explorer
• Evidence for a Black Hole and Accretion Disk in the LINER NGC 4203
• Strong observational constraints on Advection-Dominated Accretion in the cores of elliptical galaxies
• Line-driven disk wind models with an improved line force
• The Broad-Line and Narrow-Line Regions of the LINER NGC 4579
• Intermediate resolution H-beta spectroscopy and photometric monitoring of 3C 390.3 I. Further evidence of a nuclear accretion disk
• Measurement of an AGN Central Mass on Centiparsec Scales: Results of Long-Term Optical Monitoring of Arp 102B
• Spectral Models of Convection-Dominated Accretion Flows
• Compact Radio Cores in Seyfert Galaxies
• The ASCA X-Ray Spectrum Of The Broad-Line Radio Galaxy Pictor A: A Simple Power Law With No Fe K-alpha Line
• X-ray properties of the Parkes sample of flat-spectrum radio sources: dust in radio-loud quasars?
• Pictor A: A New Double-Peaked Emission Line Quasar
• Supermassive Binaries and Extragalactic Jets
• Is There an Advection-Dominated Accretion Flow in Radio Galaxies with Double-Peaked Balmer Lines?
• The ASCA X-Ray Spectrum of Arp 102B and Evaluation of Simple Models for Its Associated, Metastable Fe II Absorber
• A spiral structure in the disk of EX Draconis on the rise to outburst maximum
• Miscellaneous observations of active galactic nuclei. II

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