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Type of AGN, with a relativistic jet pointed close to the line of sight. Blazars are valuable for studying relativistic effects and the physics of jets.

Type of AGN, a highly variable subset of radio-loud quasars. OVVs are instrumental for studying the dynamics of accretion disks and jet interactions with surrounding matter.

Type of AGN, characterized by spiral or irregular morphologies and bright, compact centers. They are one of the two largest groups of AGNs and are important for studying the role of supermassive black holes in galaxy evolution.

Type of AGN, sub-class of blazar, featuring a highly variable and polarized electromagnetic spectrum. BL Lacertae objects are key to understanding jet composition and mechanism.

Type of quasar, which, unlike their radio-loud counterparts, show weak or undetectable radio emission. Radio-quiet quasars challenge our understanding of jet production in AGNs.

Type of AGN, noted for their extremely luminous nuclei, with the capacity to outshine their host galaxies. Quasars provide insights into the early Universe and the growth of supermassive black holes.

A theoretical framework explaining the different observed features of AGNs as a result of viewing angle, with the central engine being essentially the same. The model helps reconcile the diversity of AGN phenomena.

Type of AGN, notable for their large-scale radio emission extending well beyond the host galaxy. Radio galaxies help in understanding jet production and interactions between AGNs and the intergalactic medium.

Type of quasar, distinguished by strong radio emission in addition to the typical quasar features. They serve as laboratories for studying the interplay between quasar activity and radio jet formation.

Type of AGN, stands for Narrow-Line Radio Galaxy, featuring narrow emission lines and strong radio emissions. NLRGs are studied to understand the unification model of AGN and the role of AGN orientation.

Type of AGN, with broad emission lines in the optical spectrum and significant radio emissions. These objects bridge the gap between radio galaxies and quasars in unification models.