J1026+2542: Proper motion in a blazar jet at z=5.27

Title

J1026+2542: Proper motion in a blazar jet at z=5.27

 Author

Frey, S.
Paragi, Z.
Fogasy, J.O.
Gurvits, L.

Faculty

Aerospace Engineering

 Department

Space Engineering

 Date

2014-10-07

 Abstract

The radio-loud AGN J1026+2542 has recently been classified as the second most distant blazar, based on its broad-band spectral energy distribution and X-ray spectrum. The source with a prominent one-sided jet extending to at least ?20 mas was earlier observed with the VLBA at 5 GHz in January 2006. With our new EVN observation (May 2013), we detected the displacement and directly measured the apparent proper motion of the jet components, for the first time at such a high redshift. The 1.6-GHz EVN observation provided additional information on the extent and the spectral properties of the jet. The VLBI results are consistent with the picture in which J1026+2542 has its jet oriented close to the line of sight, with significant Doppler boosting and a large bulk Lorentz factor.

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 Publisher

POS

 Source

Proceedings of Science: 12th European VLBI Network Symposium and Users Meeting, Cagliari, Italy, 7-10 October 2014

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

(c) 2014 The Author(s)
Under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence
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