Multiwavelength campaign of the gamma-ray flaring source PKS 2052-47

TL;DR

This paper reports on a multiwavelength observational campaign of the gamma-ray flaring quasar PKS 2052-47, aiming to understand its emission mechanisms during a period of heightened activity across radio to gamma-ray frequencies.

Contribution

It presents the first multiwavelength data set capturing the spectral energy distribution and variability of PKS 2052-47 during its flaring state.

Findings

Detected correlated brightness variations across multiple wavelengths.

Characterized the spectral energy distribution during the flare.

Provided insights into the emission mechanisms of the source.

Abstract

The flat-spectrum radio quasar PKS 2052-47 experienced an optical flare in July-August, 2009. On August 9, the LAT detector onboard Fermi observed a flare from the source, which reached its active phase in the following two months. To further investigate the physics and emission mechanisms during the flaring state of this source, we arranged a multiwavelength campaign from radio to gamma-ray to study its spectral energy distribution (SED) and its brightness variations across the spectrum. Here we present the first results of this multiwavelength campaign.