Browsing by Author "Ineson, Judith"

Now showing items 1-5 of 5

    • The cluster environments of radio-loud AGN 

      Ineson, Judith; Croston, J.H.; Hardcastle, M.J.; Kraft, Ralph; Evans, Daniel; Jarvis, M.J. (Cambridge University Press, 2015)
      Radio-loud AGN play an important role in galaxy evolution. We need to understand their properties, and the processes that affect their behaviour in order to model galaxy formation and development. We here present preliminary ...

    • FR II radio galaxies at low frequencies I : morphology, magnetic field strength and energetics 

      Harwood, Jeremy J.; Croston, Judith H.; Intema, Huib T.; Stewart, Adam J.; Ineson, Judith; Hardcastle, Martin; Godfrey, Leith; Best, Philip; Brienza, Marisa; Heesen, Volker; Mahony, Elizabeth K.; Morganti, Raffaella; Murgia, Matteo; Orrú, Emanuela; Röttgering, Huub; Shulevski, Aleksandar; Wise, Michael W. (2016-06-01)
      Due to their steep spectra, low-frequency observations of FR II radio galaxies potentially provide key insights in to the morphology, energetics and spectrum of these powerful radio sources. However, limitations imposed ...

    • Investigating the spectral age problem with powerful radio galaxies 

      Mahatma, Vijay H.; Hardcastle, Martin J.; Croston, Judith H.; Harwood, Jeremy; Ineson, Judith; Moldon, Javier (2020-02-01)
      The 'spectral age problem' is our systematic inability to reconcile the maximum cooling time of radiating electrons in the lobes of a radio galaxy with its age as modelled by the dynamical evolution of the lobes. While ...

    • A representative survey of the dynamics and energetics of FRII radio galaxies 

      Ineson, Judith; Croston, Judith H.; Hardcastle, Martin; Mingo, Beatriz (2017-05-01)
      We report the first large, systematic study of the dynamics and energetics of a representative sample of FRII radio galaxies with well-characterized group/cluster environments. We used X-ray inverse-Compton and radio ...

    • Unveiling the 100 pc scale nuclear radio structure of NGC 6217 with e-MERLIN and the VLA 

      Williams, David R. A.; McHardy, Ian M.; Baldi, Ranieri D.; Beswick, Robert J.; Pahari, Mayukh; Argo, Megan K.; Beri, Aru; Boorman, Peter; Brinks, Elias; Dullo, Bililign T.; Fenech, Danielle M.; Ineson, Judith; Kharb, Preeti; Knapen, Johan H.; Muxlow, Tom W. B.; Westcott, Jonathan (2019-07-01)
      We present high-sensitivity 1.51 GHz e-MERLIN (e-Multi-Element Radio-Linked Interferometer Network) radio images of the nearby galaxy NGC6217. We resolve the compact radio source at the centre of NGC6217 for the first time, ...