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A jet proper motion study in the early Universe

Published online by Cambridge University Press:  07 April 2020

Krisztina Perger ,
Sándor Frey Open the ORCID record for Sándor Frey [Opens in a new window]  and
Krisztina É. Gabányi
Krisztina Perger
Affiliation:
Department of Astronomy, Eötvös Loránd University Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary email: [email protected] Konkoly Observatory, MTA Research Centre for Astronomy and Earth Sciences Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary
Sándor Frey
Affiliation:
Konkoly Observatory, MTA Research Centre for Astronomy and Earth Sciences Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary
Krisztina É. Gabányi
Affiliation:
Konkoly Observatory, MTA Research Centre for Astronomy and Earth Sciences Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary MTA-ELTE Extragalactic Astrophysics Research Group Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
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Abstract

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We constrained the jet proper motion of PMN J2134–0419 at z = 4.33 to μ = 0.035±0.023mas yr−1 using very long baseline interferometry (VLBI). This is the second most distant source where such a measurement could be made. Another distant blazar SDSS J1026+2542 (z = 5.27) shows jet component proper motions up to μ = 0.112 ± 0.031 mas yr−1. In both cases, the measured values are consistent with the expectations of current ΛCDM cosmological models.

Keywords

galaxies: activegalaxies: jetsgalaxies: high-redshiftquasars: individual (PMN J2134–0419)quasars: individual (SDSS J1026+2542)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S342: Perseus in Sicily: From Black Hole to Cluster Outskirts , May 2018 , pp. 252 - 253
Copyright
© International Astronomical Union 2020

References

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