Multi-frequency VLBA study of the blazar S5 0716+714 during the active state in 2004 - I. Inner jet kinematics

E. A. Rastorgueva; K.?Wiik; T.?Savolainen; L.?O.?Takalo; E.?Valtaoja; Y.?N.?Vetukhnovskaya; K.?V.?Sokolovsky

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Multi-frequency VLBA study of the blazar S5 0716+714 during the active state in 2004 - I. Inner jet kinematics

机译：2004年活跃状态下blazar S5 0716 + 714的多频VLBA研究-I.内部喷气运动学

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We observed the blazar 0716+714 with the VLBA during its active state in 2003-2004. In this paper we discuss multi-frequency analysis of the inner jet (first 1mas) kinematics. The unprecedentedly dense time sampling allows us to trace jet components without misidentification and to calculate the component speeds with good accuracy. In the smooth superluminal jet we were able to identify and track three components over time moving outwards with relatively high apparent superluminal speeds (8.5-19.4c), which contradicts the hypothesis of a stationary oscillating jet in this source. Component ejections occur at a relatively high rate (once in two months), and they are accompanied by mm-continuum outbursts. Superluminal jet components move along wiggling trajectories, which is an indication of actual helical motion. Fast proper motion and rapid decay of the components suggest that this source should be observed with the VLBI at a rate of at least once in one or two months in order to trace superluminal jet components without confusion. Key words: galaxies: active - galaxies: BLLacertae objects: individual: S5 0716+714 - galaxies: jets

机译：我们在2003-2004年活跃状态下观察到带有VLBA的blazar 0716 + 714。在本文中，我们讨论了内部射流（第一个1mas）运动学的多频分析。前所未有的密集时间采样使我们能够在不误识别的情况下跟踪喷射组件，并以良好的精度计算组件速度。在光滑的超光速射流中，我们能够识别和跟踪随时间以相对较高的表观超光速（8.5-19.4c）向外移动的三个分量，这与该源中的固定振荡射流的假设相矛盾。组件弹出的发生率较高（两个月一次），并且伴随毫米连续爆发。超腔射流分量沿摆动轨迹运动，这表明实际螺旋运动。组件的快速适当运动和快速衰减表明，使用VLBI时应至少每隔一到两个月观察一次该光源，以便跟踪超腔喷射组件而不会产生混淆。关键词：星系：活跃的-星系：BLLacertae物体：个人：S5 0716 + 714-星系：喷射

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《Astronomy and astrophysics》 |2009年第18期|共4页
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E. A. Rastorgueva; K.?Wiik; T.?Savolainen; L.?O.?Takalo; E.?Valtaoja; Y.?N.?Vetukhnovskaya; K.?V.?Sokolovsky;
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1. Multi-frequency VLBA study of the blazar S5 0716+714 during the active state in 2004 - II. Large-scale jet kinematics and the comparison of the different methods of VLBI data imaging as applied to kinematic studies of AGN [J] . E. A. Rastorgueva, K. J. Wiik, A. T. Bajkova, Astronomy and astrophysics . 2011,第19期

机译：2004年活跃状态下blazar S5 0716 + 714的多频VLBA研究-II。大规模射流运动学及VLBI数据成像不同方法在AGN运动学研究中的比较
2. Multi-frequency VLBA study of the blazar S5 0716+714 during the active state in 2004 - II. Large-scale jet kinematics and the comparison of the different methods of VLBI data imaging as applied to kinematic studies of AGN [J] . E. A. Rastorgueva, K. J. Wiik, A. T. Bajkova, Astronomy and astrophysics . 2011,第19期

机译：2004年活跃状态下blazar S5 0716 + 714的多频VLBA研究-II。大规模射流运动学及VLBI数据成像不同方法在AGN运动学研究中的比较
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4. Multi-wavelength flares and magnetic field in blazars: a case study of IBL S5 0716+714 [C] . S. Chandra, K. P. Singh, K. S. Baliyan International Astronomical Union., Symposium . 2017

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机译：活动期间blazar s5 0716 + 714的多频VLBa研究 2004年的州：I。内部喷气运动学
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Multi-frequency VLBA study of the blazar S5 0716+714 during the active state in 2004 - I. Inner jet kinematics

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