The Host Galaxies of Hybrid Morphology Radio Sources

Based on their differing radio morphologies, powerful galaxies can be separated into the Fanaroff-Riley I (FR-I) and II (FR-II) classes. Hybrid morphology sources (HyMoRS) contain morphologies consistent with each type of jet either side: a powerful, highly relativistic FR-II-like terminating in hotspot one side an FRI-like plume other. HyMoRS present unique opportunity to study conditions which give rise dichotomy. Using host galaxy properties, we conduct first multiwavelength investigation whether orientation explain morphology. Through optical spectroscopy mid-infrared photometry, analyze emission characteristics, evaluate broad characteristics five at intermediate redshifts (0.4 < z 1.5). The our sample have properties typical FR-II sources, suggesting that observed hybrid may caused by dense, cluster-like environment bending jets combined favorable make appear similar FR-I jet. Our results thus support hypothesis are mainly orientation.