VLBI observation of the newly discovered z = 5.18 quasar SDSS J0131-0321

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VLBI observation of the newly discovered z = 5.18 quasar SDSS J0131-0321

Journal Article (2015)

Author(s)

K. E. Gabányi (Konkoly Observatory Hungarian Academy of Sciences)

D. Cseh (Radboud Universiteit Nijmegen)

S. Frey (FöMI Satellite Geodetic Observatory)

Z. Paragi (Joint Institute for VLBI ERIC)

L. I. Gurvits (TU Delft - Astrodynamics & Space Missions, Joint Institute for VLBI ERIC)

T. An (Chinese Academy of Sciences)

Y. K. Zhang (Chinese Academy of Sciences, Key Laboratory of Radio Astronomy)

Techniques: interferometric Galaxies: high-redshift Galaxies: active Quasars: individual: SDSS J013127.34-032100.1

DOI related publication

https://doi.org/10.1093/mnrasl/slv046 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:c35c5249-645b-4f17-bddf-5d76937c9768

More Info

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Publication Year

2015

Language

English

Journal title

Monthly Notices of the Royal Astronomical Society: Letters

Issue number

1

Volume number

450

Pages (from-to)

L57-L60

Downloads counter

197

Abstract

Few high-redshift, radio-loud quasars are known to date. The extremely luminous, radio-bright quasar, SDSS J013127.34-032100.1 was recently discovered at a redshift of z = 5.18. We observed the source with high resolution very long baseline interferometry (VLBI) at 1.7 GHz with the European VLBI Network (EVN) and found a single compact radio component. We estimated a lower limit to the brightness temperature of the detected radio component, T_B ~10¹¹ K. Additionaly, when compared to archival radio data, the source showed significant flux density variation. These two findings are indicative of the blazar nature of the source.