Analysis of the Spectral Energy Distributions of Fermi bright blazars

TL;DR

This paper investigates the broad-band spectral energy distributions of gamma-ray bright blazars from the Fermi-LAT sample, combining multi-wavelength data to analyze their emission properties.

Contribution

It provides a detailed analysis of quasi-simultaneous spectral energy distributions for 48 blazars, integrating gamma-ray, X-ray, optical, and radio data for the first time in this context.

Findings

High-quality SEDs assembled for 48 blazars

Multi-wavelength data reveal diverse spectral properties

Enhanced understanding of blazar emission mechanisms

Abstract

Blazars are a small fraction of all extragalactic sources but, unlike other objects, they are strong emitters across the entire electromagnetic spectrum. In this study we have conducted a detailed investigation of the broad-band spectral properties of the gamma-ray selected blazars of the Fermi-LAT Bright AGN Sample (LBAS). By combining the accurately estimated Fermi gamma-ray spectra with Swift, radio, NIR-Optical and hard-X/gamma-ray data, collected within three months of the LBAS data taking period, we were able to assemble high-quality and quasi-simultaneous Spectral Energy Distributions (SED) for 48 LBAS blazars.