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Paper: Jet Kinematics and Absorbing Matter in the Quasar 1413+135
Volume: 476, New Trends in Radio Astronomy in the ALMA Era
Page: 291
Authors: Lee, M.; Hiwaki, H.; Kameno, S.
Abstract: We report jet kinematics of the radio-loud quasar 1413+135 based on the archival data of the MOJAVE VLBA monitoring at 2 cm. The quasar is known to emanate superluminal jets. We developed a simple analysis tool to measure the speed of jets and identified a jet component with the apparent velocity of βapp = 1.29 ± 0.13. The apparent speed yields the viewing angle and the minimum speed of θ ∼ 38° and βmin = 0.79± 0.12, respectively. We also found the variation of flux density of the jet component. The flux variation can be explained by the change of optical depth through surrounding matter as the component escapes from it.
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