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Date and Time of the Query: 2019-04-25 T19:13:04 PDT
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For refcode 2006MNRAS.367..366A:
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NED Abstract

Copyright by Royal Astronomical Society. 2006MNRAS.367..366A The radio properties of the cD galaxy of Abell 2390 Augusto, Pedro; Edge, Alastair C.; Chandler, Claire J. Abstract. We present multifrequency, multi-epoch radio imaging of the complex radio source B2151+174 in the core of the cluster, Abell 2390 (z~= 0.23). From new and literature data, we conclude that the Faranoff-Riley type II (FRII)-powerful radio source is the combination of a compact, core-dominated 'medium-sized symmetric object' (MSO) with a more extended, steeper spectrum mini-halo. B2151+174 is unusual in a number of important aspects. (i) It is one of the most compact and flat spectrum sources in a cluster core known; (II) it shows a complex, compact twin-jet structure in a north-south orientation; (III) the orientation of the jets is 45^degree^ misaligned with apparent structure (ionization cones and dust disc) of the host galaxy on larger scales. Since the twin-jet of the MSO has its northern half with an apparent 'twist', it might be that precession of the central supermassive black hole explains this misalignment. B2151+174 may be an example of the early stage (10^3^-10^4^yr duration) of a 'bubble' being blown into the intracluster medium where the plasma has yet to expand. Key words: galaxies: active-galaxies: clusters: individual: Abell 2390-galaxies: elliptical and lenticular, cD
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