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

Bañados, Eduardo; Carilli, Chris; Walter, Fabian; Momjian, Emmanuel; Decarli, Roberto; Farina, Emanuele P.; Mazzucchelli, Chiara; Venemans, Bram P.

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Journal Article

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

MPS-Authors

Bañados, Eduardo
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Carilli, Chris
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Walter, Fabian
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Momjian, Emmanuel
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Decarli, Roberto
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Farina, Emanuele P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Mazzucchelli, Chiara
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Venemans, Bram P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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https://ui.adsabs.harvard.edu/abs/2018ApJ...861L..14B
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Citation

Bañados, E., Carilli, C., Walter, F., Momjian, E., Decarli, R., Farina, E. P., et al. (2018). A Powerful Radio-loud Quasar at the End of Cosmic Reionization. The Astrophysical Journal, 861.

Cite as: https://hdl.handle.net/21.11116/0000-0005-CF1A-6

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.