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

http://arxiv.org/abs/1810.12351


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).

Read this paper on arXiv…

K. Gabányi, S. Frey, L. Gurvits, et. al.
Wed, 31 Oct 18
64/65

Comments: 4 pages, 1 figure; accepted by the Research Notes of the American Astronomical Society