Title:	The X-shaped Radio Galaxy J0725+5835 is Associated with an AGN Pair
Authors:	Yang, Xiaolong Ji, Jialu Joshi, Ravi Yang, Jun An, Tao Wang, Ran Ho, Luis C. Roberts, David H. Saripalli, Lakshmi
Issue Date:	6-Jul-2022
Publisher:	IOP Sciences for The American Astronomical Society
Citation:	The Astrophysical Journal, 2022, Vol.933, p98
Abstract:	X-shaped radio galaxies (XRGs) are those that exhibit two pairs of unaligned radio lobes (main radio lobes and wings). One of the promising models for the peculiar morphology is jet reorientation. To clarify this, we conducted a 5 GHz observation with the European VLBI Network (EVN) of XRG J0725+5835, which resembles the archetypal binary active galactic nuclei (AGNs) 0402+379 in radio morphology, but it is larger in angular size. In our observation, two milliarcsecond-scale radio components with nonthermal radio emission are detected. Each of them coincides with an optical counterpart with similar photometric redshift and (optical and infrared) magnitude, corresponding to dual active nuclei. Furthermore, with the improved Very Large Array (VLA) images, we find a bridge between the two radio cores and a jet bending in the region surrounding the companion galaxy. This further supports the interplay between the main and companion galaxies. In addition, we also report the discovery of an arcsecond-scale jet in the companion. Given the projected separation of ∼100 kpc between the main and companion galaxies, XRG J0725+5835 is likely associated with a dual jetted-AGN system. In both EVN and VLA observations, we find signatures that the jet is changing its direction, which is likely responsible for the X-shaped morphology. For the origin of jet reorientation, several scenarios are discussed.
Description:	Open Access
URI:	http://hdl.handle.net/2289/7973
ISSN:	0004-637X 1538-4357(Online)
Alternative Location:	https://doi.org/10.3847/1538-4357/ac71aa
Copyright:	2022, The American Astronomical Society
Appears in Collections:	Research Papers (A&A)

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.