Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2011-04-26
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
13 pages, 10 figures, 4 tables, after moderate revision the paper is accepted for publication in A&A
Scientific paper
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.
Arshakian Tigran G.
Boettcher Markus
Chavushyan Vahram H.
Leon-Tavares Jonathan
Lister Matthew L.
No associations
LandOfFree
Radio-Optical-Gamma-Ray properties of MOJAVE AGN detected by Fermi/LAT does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radio-Optical-Gamma-Ray properties of MOJAVE AGN detected by Fermi/LAT, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio-Optical-Gamma-Ray properties of MOJAVE AGN detected by Fermi/LAT will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-296645