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A Powerful Radio-loud Quasar at the End of Cosmic Reionization

Journal
Date Issued
2018
Author(s)
Bañados, Eduardo
•
Carilli, Chris
•
Walter, Fabian
•
Momjian, Emmanuel
•
•
Farina, Emanuele P.
•
Mazzucchelli, Chiara
•
Venemans, Bram P.
DOI
Abstract
We present the discovery of the radio-loud quasar PSO J352.4034-15.3373 at z = 5.84 ± 0.02. This quasar is the radio brightest source known, by an order of magnitude, at z ∼ 6 with a flux density in the range of 8-100 mJy from 3 GHz to 230 MHz and a radio loudness parameter R={f}ν ,5{GHz}/{f}ν ,4400\mathringA ≳ 1000. This source provides an unprecedented opportunity to study powerful jets and radio-mode feedback at the highest redshifts, and presents the first real chance to probe deep into the neutral intergalactic medium by detecting 21 cm absorption at the end of cosmic reionization.
Volume
861
Issue
2
Start page
L14
Uri
Url
Issn Identifier
2041-8205
Ads BibCode
2018ApJ...861L..14B
Rights
open.access
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