Rodman, P. E.Turner, R JShabala, Stanislav SBanfield, JulieWong, O.I.Adernach, H.Garon, AKapińska, A. D.Norris, R. P.Rudnick, L2023-09-192023-09-190035-8711http://hdl.handle.net/1885/299635We investigate the role of environment on radio galaxy properties by constructing a sample of large (≳100 kpc), nearby (z < 0.3) radio sources identified as part of the Radio Galaxy Zoo citizen science project. Our sample consists of 16 Fanaroff-Riley Type II (FR-II) sources, 6 FR-I sources, and 1 source with a hybrid morphology. FR-I sources appear to be hosted by more massive galaxies, consistent with previous studies. In the FR-II sample, we compare the degree of asymmetry in radio lobe properties to asymmetry in the radio source environment, quantified through optical galaxy clustering. We find that the length of radio lobes in FR-II sources is anticorrelated with both galaxy clustering and lobe luminosity. These results are in quantitative agreement with predictions from radio source dynamical models and suggest that galaxy clustering provides a useful proxy for the ambient gas density distribution encountered by the radio lobes.SS thanks the Australian Research Council for an Early Career Fellowship, DE130101399. HA has benefitted from grant DAIP #066/2018 of Universidad de Guanajuato. Partial support for the work of AFG and LR comes from grant AST-1714205 to the University of Minnesota from the U.S. National Science Foundation.application/pdfen-AU© 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Societygalaxies: activegalaxies: jetsradio continuum: galaxiesRadio Galaxy Zoo: Observational evidence for environment as the cause of radio source asymmetry201910.1093/mnras/sty30702022-07-31