Radio-Optical-Gamma-Ray properties of MOJAVE AGN detected by Fermi/LAT

Abstract

Aims. We use a sample of 83 core-dominated active galactic nuclei (AGN) selected from the MOJAVE (Monitoring of Jets in AGN with VLBA Experiments) radio-flux-limited sample and detected with the Fermi Large Area Telescope (LAT) to study the relations between non-simultaneous radio, optical, and gamma-ray measurements. Methods. We perform a multi-band statistical analysis to investigate the relations between the emissions in different bands and reproduce these relations by modeling of the spectral energy distributions of blazars. Results. There is a significant correlation between the gamma-ray luminosity and the optical nuclear and radio (15 GHz) luminosities of blazars. We report a well defined positive correlation between the gamma-ray luminosity and the radio-optical loudness for quasars and BL Lacertae type objects (BL Lacs). A strong positive correlation is found between the radio luminosity and the gamma-ray-optical loudness for quasars, while a negative correlation between the optical luminosity and the gamma-ray-radio loudness is present for BL Lacs. Modeling of these correlations with a simple leptonic jet model for blazars indicates that variations of the accretion disk luminosity (and hence the jet power) is able to reproduce the trends observed in most of the correlations. To reproduce all observed correlations, variations of several parameters, such as the accretion power, jet viewing angle, Lorentz factor, and magnetic field of the jet, are required.

13 pages, 10 figures, 4 tables, after moderate revision the paper is accepted for publication in A&A

References in corpus (11)

• MOJAVE: Monitoring of Jets in AGN with VLBA Experiments. V. Multi-epoch VLBA Images
• A change in the optical polarization associated with a gamma-ray flare in the blazar 3C 279
• Simultaneous Planck, Swift, and Fermi observations of X-ray and gamma-ray selected blazars
• On the relation between AGN gamma-ray emission and parsec-scale radio jets
• Gamma-Ray and Parsec-Scale Jet Properties of a Complete Sample of Blazars From the MOJAVE Program
• Radio/gamma-ray time delay in the parsec-scale cores of active galactic nuclei
• Planck early results. XV. Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources
• The connection between gamma-ray emission and millimeter flares in Fermi/LAT blazars
• Characteristics of Gamma-Ray Loud Blazars in the VLBA Imaging and Polarimetry Survey
• Rapid Variability of Gamma-ray Emission from Sites near the 43 GHz Cores of Blazar Jets
• Blazar Compton efficiencies: Fermi, external photons and the Sequence

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