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arXiv · 1810.12351

High-Resolution Radio Image of a Candidate Radio Galaxy at z=5.72

K. É. Gabányi·S. Frey·L. I. Gurvits·Z. Paragi·K. Perger
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Abstract

Recently, Saxena et al. (2018) reported the discovery of a possible radio galaxy, J1530$+$1049 at a redshift of z=5.72. We observed the source with the European Very Long Baseline Interferometry Network at $1.7$ GHz. We detected two faint radio features with a separation of $\sim 400$ mas. The radio power calculated from the VLA flux density by Saxena et al. (2018), and the projected source size derived from our EVN data place J1530$+$1049 among the medium-sized symmetric objects (MSOs) which are thought to be young counterparts of radio galaxies (An and Baan 2012). Thus, our finding is consistent with a radio galaxy in an early phase of its evolution as proposed by Saxena et al. (2018).

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K. É. Gabányi, S. Frey, L. I. Gurvits, Z. Paragi, K. Perger. 2018-10-29. High-Resolution Radio Image of a Candidate Radio Galaxy at z=5.72. https://arxiv.org/abs/1810.12351

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