Browsing University of Hertfordshire by Author "Botteon, Andrea"

Now showing items 1-4 of 4

    • The discovery of a radio galaxy of at least 5 Mpc 

      Oei, Martijn S. S. L.; Weeren, Reinout J. van; Hardcastle, Martin J.; Botteon, Andrea; Shimwell, Tim W.; Dabhade, Pratik; Gast, Aivin R. D. J. G. I. B.; Röttgering, Huub J. A.; Brüggen, Marcus; Tasse, Cyril; Williams, Wendy L.; Shulevski, Aleksandar (2022-04-01)
      Context. Giant radio galaxies (GRGs, or colloquially giants) are the Universes largest structures generated by individual galaxies. They comprise synchrotron-radiating active galactic nucleus ejecta and attain cosmological ...

    • Luminous giants populate the dense Cosmic Web 

      Oei, Martijn S. S. L.; van Weeren, Reinout J.; Hardcastle, Martin J.; Gast, Aivin R. D. J. G. I. B.; Leclercq, Florent; Röttgering, Huub J. A.; Dabhade, Pratik; Shimwell, Tim W.; Botteon, Andrea (2024-06-19)
      Context. Giant radio galaxies (GRGs, giant RGs, or giants) are megaparsec-scale, jet-driven outflows from accretion disks of supermassive black holes, and represent the most extreme pathway by which galaxies can impact the ...

    • Measuring the giant radio galaxy length distribution with the LoTSS 

      Oei, Martijn S. S. L.; Weeren, Reinout J. van; Gast, Aivin R. D. J. G. I. B.; Botteon, Andrea; Hardcastle, Martin J.; Dabhade, Pratik; Shimwell, Tim W.; Röttgering, Huub J. A.; Drabent, Alexander (2023-04-19)
      Context. Many massive galaxies launch jets from the accretion disk of their central black hole, but only ∼103 instances are known in which the associated outflows form giant radio galaxies (GRGs, or giants): luminous ...

    • On the encounter between the GASP galaxy JO36 and the radio plume of GIN 049 

      Ignesti, Alessandro; Brienza, Marisa; Vulcani, Benedetta; Poggianti, Bianca M.; Marasco, Antonino; Smith, Rory; Hardcastle, Martin; Botteon, Andrea; Roberts, Ian D.; Fritz, Jacopo; Paladino, Rosita; Gitti, Myriam; Wolter, Anna; Tomčić, Neven; McGee, Sean; Moretti, Alessia; Gullieuszik, Marco; Drabent, Alexander (2023-10-16)
      We report the serendipitous discovery of an unprecedented interaction between the radio lobe of a radio galaxy and a spiral galaxy. The discovery was made thanks to LOFAR observations at 144 MHz of the galaxy cluster A160 ...