Radio Properties of the $\gamma$-ray Emitting CSO Candidate 2234+282
T. An, Y.-Z. Cui, K. E. Gabanyi, S. Frey, W. A. Baan, W. Zhao
TL;DR
This paper investigates the radio characteristics of the gamma-ray emitting CSO candidate 2234+282 to understand the origin of gamma-ray emission in non-blazar AGN.
Contribution
It provides the first detailed radio analysis of the gamma-ray emitting CSO candidate 2234+282, exploring its potential as a non-blazar gamma-ray source.
Findings
Radio properties suggest a compact symmetric structure
Possible evidence of non-beamed gamma-ray emission mechanisms
Highlights the rarity and significance of gamma-ray emitting CSOs
Abstract
Most of the gamma-ray emitting active galactic nuclei (AGN) are blazars, although there is still a small fraction of non-blazar AGN in the Fermi/LAT catalog. Among these misaligned gamma-ray-emitting AGN, a few can be classified as Compact Symmetric Objects (CSOs). In contrast to blazars in which gamma-ray emission is generally thought to originate from highly beamed relativistic jets, the source of gamma-ray emission in unbeamed CSOs remains an open question. The rarity of the gamma-ray emitting CSOs is a mystery as well. Here we present the radio properties of the gamma-ray CSO candidate 2234+282.
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