The Large Gamma-Ray Flare of the Flat-Spectrum Radio Quasar PKS0346-27

Abstract

Aims. In this paper, we characterize the first gamma-ray flaring episode of the flat-spectrum radio quasar PKS 0346-27 (z = 0.991), as revealed by Fermi-LAT monitoring data, and the concurrent multi-wavelength variability observed from radio through X-rays. Methods. We studied the long- and short-term flux and spectral variability from PKS 0346-27 by producing gamma-ray light curves with different time binning. We complement the Fermi-LAT data with multi-wavelength observations from the Atacama Large Millimeter Array (radio mm-band), the Rapid Eye Mount telescope (near-infrared) and Swift (optical-UV and X-rays). This quasi-simultaneous multi-wavelength coverage allowed us to construct time-resolved spectral energy distributions (SEDs) of PKS 0346-27 and compare the broadband spectral properties of the source between different activity states using a one-zone leptonic emission model.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2019
Accession Number
AD1096511

Entities

People

  • J. D. Finke
  • R. Angioni
  • R. Nesci
  • S. Buson
  • S. Ciprini

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Black Holes
  • Broadband
  • Data Acquisition
  • Data Analysis
  • Detection
  • Electrons
  • Frequency
  • Gamma Rays
  • Ground Based
  • High Energy
  • Magnetic Fields
  • Observation
  • Observatories
  • Radiation
  • Spectra
  • Spectral Energy Distribution
  • X Rays

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics

Technology Areas

  • Space