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Filaments in the southern giant lobe of Centaurus A : Constraints on nature and origin from modelling and GMRT observations
(2014-08-21)
We present results from imaging of the radio filaments in the southern giant lobe of CentaurusA using data from Giant Metrewave Radio Telescope observations at 325 and 235 MHz, and outcomes from filament modelling. The ...
Spitzer MID-IR spectroscopy of powerful 2Jy and 3CRR radio galaxies. II : Agn power indicators and unification
(2014-06-20)
It remains uncertain which continuum and emission line diagnostics best indicate the bolometric powers of active galactic nuclei (AGNs), especially given the attenuation caused by the circumnuclear material and the possible ...
An X-ray survey of the 2 Jy sample-I : Is there an accretion mode dichotomy in radio-loud AGN?
(2014-05-01)
We carry out a systematic study of the X-ray emission from the active nuclei of the 0.02 < z< 0.7 2 Jy sample, using Chandra and XMM-Newton observations.We combine our results with those from mid-infrared, optical emission-line ...
The impact of a young radio galaxy : Clues from the cosmic ray electron population
(2014-04-01)
In the framework of hierarchical structure formation, active galactic nuclei (AGN) feedback shapes the galaxy luminosity function. Low luminosity, galaxy-scale double radio sources are ideal targets to investigate the ...
The particle content of low-power radio galaxies in groups and clusters
(2014-03-01)
The synchrotron-radiating particles and magnetic fields in low-power radio galaxies (including most nearby cluster-centre sources), if at equipartition, can provide only a small fraction of the total internal energy density ...
The wide-field infrared survey explorer properties of complete samples of radio-loud active galactic nucleus
(2014-03-01)
We present an analysis of four complete samples of radio-loud active galactic nucleus (AGN; 3CRR, 2Jy, 6CE and 7CE) using near- and mid-IR data taken by theWide-field Infrared Survey Explorer (WISE). The combined sample ...