J06587-5558 -- A Very Unusual Polarised Radio Source

Abstract

We have found a peculiar radio source in the field of one of the hottest known clusters of galaxies 1E0657-56. It is slightly extended, highly polarised (54% at 8.8GHz) and has a very steep spectrum, with alpha ~ -1 at 1.3 GHz, steepening to ~ -1.5 at 8.8GHz (S \propto nu^alpha). No extragalactic sources are known with such high integrated polarisation, and sources with spectra as steep as this are rare. In this paper, we report the unusual properties of the source J06587-5558 and speculate on its origin and optical identification.

5 pages, 6 figures, accepted by MNRAS letters

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Cited by in corpus (6)

• Another shock for the Bullet cluster, and the source of seed electrons for radio relics
• Deep radio observations of the radio halo of the bullet cluster 1E 0657-55.8
• Diffuse galaxy cluster emission at 168 MHz within the Murchison Widefield Array Epoch of Reionization 0-hour field
• Application of an XMM-Newton EPIC Monte Carlo Technique to Analysis and Interpretation of Data for the Abell 1689, RX J0658-55 and Centaurus clusters of galaxies
• Radio sources with ultra-high polarization
• One of Everything: The Breakthrough Listen Exotica Catalog