The radio tail galaxies in Abell 1314

Abstract

THE study of radio tail objects is important to our understanding of extragalactic radio sources because the tail morphology allows inference of the temporal evolution of ejected radio components. Furthermore, with increased understanding of these objects, it may be possible to use radio tails as probes of extragalactic space in clusters of galaxies. All published models of radio tails require some form of streamlining resulting from the relative motion of the parent galaxy and the medium producing the tail shape. Therefore, to constrain the relevant dynamical quantities, we have obtained radial velocity measurements for 18 galaxies in the vicinity of A1314, including the two radio tail objects, IC708 and IC711.

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