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

2018/07/06 by Eduardo Bañados, Eduardo Banados, C. L. Carilli +9 · 5 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #COSMIC cancer database #Galaxies: Formation, Evolution, Phenomena #Galaxy #Physics #Quasar #Radio Astronomy Observations and Technology #Redshift #Reionization #astro-ph.GA

paper · pdf · doi:10.3847/2041-8213/aac511

ApJL accepted on May 8, 2018. See the companion paper by Momjian et al

arxiv created 2018/07/06 · openalex publication_date 2018/07/09 · arxiv updated 2018/07/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

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 . 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.

Citations

• Observational Evidence of Active Galactic Nuclei Feedback
• The NRAO VLA Sky Survey
• A Search for Hi21 cm Absorption toward the Highest Redshift (z ~ 5.2) Radio-loud Objects
• Matplotlib: A 2D Graphics Environment
• DISCOVERY OF EIGHTz∼ 6 QUASARS FROM Pan-STARRS1
• The Massive Hosts of Radio Galaxies across Cosmic Time
• Protoclusters associated with z > 2 radio galaxies. I. Characteristics of high redshift protoclusters

Cited by

• Discovery of the Most X-ray Luminous Quasar SRGE J170245.3+130104 at Redshift \boldsymbolz≈ 5.5
• X-Ray Properties of Young Radio Quasars at z > 4.5
• 21 cm forest constraints on primordial black holes
• Enhanced X-Ray Emission from the Most Radio-powerful Quasar in the Universe’s First Billion Years
• Three Lyα Emitting Galaxies within a Quasar Proximity Zone at z ∼ 5.8