SIMBAD references

2018MNRAS.481L..54C - Mon. Not. R. Astron. Soc., 481, L54-L58 (2018/November-3)

The nature of the variable millimetre-selected AGN in the brightest cluster galaxy of Abell 851.

CHEALE R.A., GEACH J.E., EDGE A.C., PERROTT Y.C. and CANTWELL T.

Abstract (from CDS):

We present the detection of a bright 3 mm continuum source in the brightest cluster galaxy (BCG) in Abell 0851 (z = 0.411) with the NOrthern Extended Millimeter Array (NOEMA). When this detection is compared to other multifrequency observations across 21cm-100 µm, including new Arcminute Microkelvin Imager 15 GHz observations, we find evidence for a relatively flat, variable core source associated with the BCG. The radio power and amplitude of variability observed in this galaxy is consistent with the cores in lower redshift BCGs in X-ray-selected clusters, and the flat mm-cm spectrum is suggestive of the BCG being a low-luminosity active galactic nucleus archetype. The discovery of this system could provide a basis for a long-term study of the role of low-luminosity radio mode 'regulatory' feedback in massive clusters.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: interferometric - galaxies: clusters: individual: ((A851, Cl 0939+4713)) - galaxies: clusters: individual: Abell 851 - galaxies: elliptical and lenticular, cD - galaxies: evolution

Simbad objects: 10

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2019.10.19-17:53:10

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