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Browsing by Author "Brienza, M."

Browsing by Author "Brienza, M."

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  • A 600 kpc complex radio source at the center of Abell 3718 discovered by the EMU and POSSUM surveys 
    Loi, F.; Brienza, M.; Riseley, C. J.; Rudnick, L.; Boschin, W.; Lovisari, L.; Carretti, E.; Koribalski, B.; Stuardi, C.; O'Sullivan, S. P.; Bonafede, A.; Filipovic, M. D.; Hopkins, A. (2023)
    Context. Multifrequency studies of galaxy clusters are crucial for inferring their dynamical states and physics. Moreover, these studies allow us to investigate cluster-embedded sources, whose evolution is affected by the ...
  • AGN duty cycle estimates for the ultra-steep spectrum radio relic VLSS J1431.8+1331 
    Shulevski, A.; Morganti, R.; Barthel, P. D.; Harwood, J. J.; Brunetti, G.; van Weeren, R. J.; Röttgering, H. J. A.; White, G. J.; Horellou, C.; Kunert-Bajraszewska, M.; Jamrozy, M.; Chyzy, K. T.; Mahony, E.; Miley, G.; Brienza, M.; Bîrzan, L.; Rafferty, D. A.; Brüggen, M.; Wise, M. W.; Conway, J.; de Gasperin, F.; Vilchez, N. (2015)
    Context. Steep spectrum radio sources associated with active galactic nuclei (AGN) may contain remnants of past AGN activity episodes. Studying these sources gives us insight into the AGN activity history. Novel instruments ...
  • Deep low-frequency radio observations of Abell 2256. II. The ultra-steep spectrum radio halo 
    Rajpurohit, K.; Osinga, E.; Brienza, M.; Botteon, A.; Brunetti, G.; Forman, W. R.; Riseley, C. J.; Vazza, F.; Bonafede, A.; van Weeren, R. J.; Brüggen, M.; Rajpurohit, S.; Drabent, A.; Dallacasa, D.; Rossetti, M.; Rajpurohit, A. S.; Hoeft, M.; Bonnassieux, E.; Cassano, R.; Miley, G. K. (2023)
    We present the first detailed analysis of the radio halo in the merging galaxy cluster Abell 2256 using the LOw Frequency ARray, the upgraded Giant Metrewave Radio Telescope, and the Karl G. Jansky Very Large Array. Radio ...
  • Dissecting nonthermal emission in the complex multiple-merger galaxy cluster Abell 2744: Radio and X-ray analysis 
    Rajpurohit, K.; Vazza, F.; van Weeren, R. J.; Hoeft, M.; Brienza, M.; Bonnassieux, E.; Riseley, C. J.; Brunetti, G.; Bonafede, A.; Brüggen, M.; Forman, W. R.; Rajpurohit, A. S.; Röttgering, H. J. A.; Drabent, A.; Domínguez-Fernández, P.; Wittor, D.; Andrade-Santos, F. (2021)
    We present the first deep low frequency radio observations of the massive and highly disturbed galaxy cluster Abell 2744 using the upgraded Giant Metrewave Radio Telescope (uGMRT). The cluster is experiencing a very complex ...
  • The galaxy group NGC 507: Newly detected AGN remnant plasma transported by sloshing 
    Brienza, M.; Lovisari, L.; Rajpurohit, K.; Bonafede, A.; Gastaldello, F.; Murgia, M.; Vazza, F.; Bonnassieux, E.; Botteon, A.; Brunetti, G.; Drabent, A.; Hardcastle, M. J.; Pasini, T.; Riseley, C. J.; Röttgering, H. J. A.; Shimwell, T.; Simionescu, A.; van Weeren, R. J. (2022)
    Jets from active galactic nuclei (AGN) are known to recurrently enrich their surrounding medium with mildly relativistic particles and magnetic fields. Here, we present a detailed multi-frequency analysis of the nearby (z ...
  • The Lockman Hole project: LOFAR observations and spectral index properties of low-frequency radio sources 
    Mahony, E. K.; Morganti, R.; Prandoni, I.; van Bemmel, I. M.; Shimwell, T. W.; Brienza, M.; Best, P. N.; Brüggen, M.; Calistro Rivera, G.; de Gasperin, F.; Hardcastle, M. J.; Harwood, J. J.; Heald, G.; Jarvis, M. J.; Mandal, S.; Miley, G. K.; Retana-Montenegro, E.; Röttgering, H. J. A.; Sabater, J.; Tasse, C.; van Velzen, S.; van Weeren, R. J.; Williams, W. L.; White, G. J. (2016)
    The Lockman Hole is a well-studied extragalactic field with extensive multi-band ancillary data covering a wide range in frequency, essential for characterizing the physical and evolutionary properties of the various source ...
  • LOFAR MSSS: Discovery of a 2.56 Mpc giant radio galaxy associated with a disturbed galaxy group 
    Clarke, A. O.; Heald, G.; Jarrett, T.; Bray, J. D.; Hardcastle, M. J.; Cantwell, T. M.; Scaife, A. M. M.; Brienza, M.; Bonafede, A.; Breton, R. P.; Broderick, J. W.; Carbone, D.; Croston, J. H.; Farnes, J. S.; Harwood, J. J.; Heesen, V.; Horneffer, A.; van der Horst, A. J.; Iacobelli, M.; Jurusik, W.; Kokotanekov, G.; McKean, J. P.; Morabito, L. K.; Mulcahy, D. D.; Nikiel-Wroczyñski, B. S.; Orrú, E.; Paladino, R.; Pandey-Pommier, M.; Pietka, M.; Pizzo, R.; Pratley, L.; Riseley, C. J.; Rottgering, H. J. A.; Rowlinson, A.; Sabater, J.; Sendlinger, K.; Shulevski, A.; Sridhar, S. S.; Stewart, A. J.; Tasse, C.; van Velzen, S.; van Weeren, R. J.; Wise, M. W. (2017)
    We report on the discovery in the LOFAR Multifrequency Snapshot Sky Survey (MSSS) of a giant radio galaxy (GRG) with a projected size of 2.56 ± 0.07 Mpc projected on the sky. It is associated with the galaxy triplet UGC ...
  • The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1. III. Host-galaxy identifications and value added catalogues 
    Kondapally, R.; Best, P. N.; Hardcastle, M. J.; Nisbet, D.; Bonato, M.; Sabater, J.; Duncan, K. J.; McCheyne, I.; Cochrane, Rachel K.; Bowler, R. A. A.; Williams, W. L.; Shimwell, T. W.; Tasse, C.; Croston, J. H.; Goyal, A.; Jamrozy, M.; Jarvis, M. J.; Mahatma, V. H.; Röttgering, H. J. A.; Smith, D. J. B.; Wolowska, A.; Bondi, M.; Brienza, M.; Brown, M. J. I.; Brüggen, M.; Chambers, K.; Garrett, M. A.; Gürkan, G.; Huber, M.; Kunert-Bajraszewska, M.; Magnier, E.; Mingo, B.; Mostert, R.; Nikiel-Wroczynski, B.; O'Sullivan, S. P.; Paladino, R.; Ploeckinger, T.; Prandoni, I.; Rosenthal, M. J.; Schwarz, D. J.; Shulevski, A.; Wagenveld, J. D.; Wang, L. (2021)
    We present the source associations, cross-identifications, and multi-wavelength properties of the faint radio source population detected in the deep tier of the LOFAR Two Metre Sky Survey (LoTSS): the LoTSS Deep Fields. ...
  • The LOFAR Two-metre Sky Survey. I. Survey description and preliminary data release 
    Shimwell, T. W.; Röttgering, H. J. A.; Best, P. N.; Williams, W. L.; Dijkema, T. J.; de Gasperin, F.; Hardcastle, M. J.; Heald, G. H.; Hoang, D. N.; Horneffer, A.; Intema, H.; Mahony, E. K.; Mandal, S.; Mechev, A. P.; Morabito, L.; Oonk, J. B. R.; Rafferty, D.; Retana-Montenegro, E.; Sabater, J.; Tasse, C.; van Weeren, R. J.; Brüggen, M.; Brunetti, G.; Chyzy, K. T.; Conway, J. E.; Haverkorn, M.; Jackson, N.; Jarvis, M. J.; McKean, J. P.; Miley, G. K.; Morganti, R.; White, G. J.; Wise, M. W.; van Bemmel, I. M.; Beck, R.; Brienza, M.; Bonafede, A.; Calistro Rivera, G.; Cassano, R.; Clarke, A. O.; Cseh, D.; Deller, A.; Drabent, A.; van Driel, W.; Engels, D.; Falcke, H.; Ferrari, C.; Fröhlich, S.; Garrett, M. A.; Harwood, J. J.; Heesen, V.; Hoeft, M.; Horellou, C.; Israel, F. P.; Kapinska, A. D.; Kunert-Bajraszewska, M.; McKay, D. J.; Mohan, N. R.; Orrú, E.; Pizzo, R. F.; Prandoni, I.; Schwarz, D. J.; Shulevski, A.; Sipior, M.; Smith, D. J. B.; Sridhar, S. S.; Steinmetz, M.; Stroe, Andra; Varenius, E.; van der Werf, P. P.; Zensus, J. A.; Zwart, J. T. L. (2017)
    The LOFAR Two-metre Sky Survey (LoTSS) is a deep 120-168 MHz imaging survey that will eventually cover the entire northern sky. Each of the 3170 pointings will be observed for 8 h, which, at most declinations, is sufficient ...
  • LOFAR/H-ATLAS: a deep low-frequency survey of the Herschel-ATLAS North Galactic Pole field 
    Hardcastle, M. J.; Gürkan, G.; van Weeren, R. J.; Williams, W. L.; Best, P. N.; de Gasperin, F.; Rafferty, D. A.; Read, S. C.; Sabater, J.; Shimwell, T. W.; Smith, D. J. B.; Tasse, C.; Bourne, N.; Brienza, M.; Brüggen, M.; Brunetti, G.; Chyzy, K. T.; Conway, J.; Dunne, L.; Eales, S. A.; Maddox, S. J.; Jarvis, M. J.; Mahony, E. K.; Morganti, R.; Prandoni, I.; Röttgering, H. J. A.; Valiante, E.; White, G. J. (2016)
    We present Low-Frequency Array (LOFAR) High-Band Array observations of the Herschel-ATLAS North Galactic Pole survey area. The survey we have carried out, consisting of four pointings covering around 142 deg<SUP>2</SUP> ...
  • The peculiar radio galaxy 4C 35.06: a case for recurrent AGN activity? 
    Shulevski, A.; Morganti, R.; Barthel, P. D.; Murgia, M.; van Weeren, R. J.; White, G. J.; Brüggen, M.; Kunert-Bajraszewska, M.; Jamrozy, M.; Best, P. N.; Röttgering, H. J. A.; Chyzy, K. T.; de Gasperin, F.; Bîrzan, L.; Brunetti, G.; Brienza, M.; Rafferty, D. A.; Anderson, J.; Beck, R.; Deller, A.; Zarka, P.; Schwarz, D.; Mahony, E.; Orrú, E.; Bell, M. E.; Bentum, M. J.; Bernardi, G.; Bonafede, A.; Breitling, F.; Broderick, J. W.; Butcher, H. R.; Carbone, D.; Ciardi, B.; de Geus, E.; Duscha, S.; Eislöffel, J.; Engels, D.; Falcke, H.; Fallows, R. A.; Fender, R.; Ferrari, C.; Frieswijk, W.; Garrett, M. A.; Grießmeier, J.; Gunst, A. W.; Heald, G.; Hoeft, M.; Hörandel, J.; Horneffer, A.; van der Horst, A. J.; Intema, H.; Juette, E.; Karastergiou, A.; Kondratiev, V. I.; Kramer, M.; Kuniyoshi, M.; Kuper, G.; Maat, P.; Mann, G.; McFadden, R.; McKay-Bukowski, D.; McKean, J. P.; Meulman, H.; Mulcahy, D. D.; Munk, H.; Norden, M. J.; Paas, H.; Pandey-Pommier, M.; Pizzo, R.; Polatidis, A. G.; Reich, W.; Rowlinson, A.; Scaife, A. M. M.; Serylak, M.; Sluman, J.; Smirnov, O.; Steinmetz, M.; Swinbank, J.; Tagger, M.; Tang, Y.; Tasse, C.; Thoudam, S.; Toribio, M. C.; Vermeulen, R.; Vocks, C.; Wijers, R. A. M. J.; Wise, M. W.; Wucknitz, O. (2015)
    Using observations obtained with the LOw Fequency ARray (LOFAR), the Westerbork Synthesis Radio Telescope (WSRT) and archival Very Large Array (VLA) data, we have traced the radio emission to large scales in the complex ...
  • Physical insights from the spectrum of the radio halo in MACS J0717.5+3745 
    Rajpurohit, K.; Brunetti, G.; Bonafede, A.; van Weeren, R. J.; Botteon, A.; Vazza, F.; Hoeft, M.; Riseley, C. J.; Bonnassieux, E.; Brienza, M.; Forman, W. R.; Röttgering, H. J. A.; Rajpurohit, A. S.; Locatelli, N.; Shimwell, T. W.; Cassano, R.; Di Gennaro, G.; Brüggen, M.; Wittor, D.; Drabent, A.; Ignesti, A. (2021)
    We present new LOw-Frequency ARray observations of the massive merging galaxy cluster MACS J0717.5+3745, located at a redshift of 0.5458. The cluster hosts the most powerful radio halo known to date. These new observations, ...
  • Studying the late evolution of a radio-loud AGN in a galaxy group with LOFAR 
    Savini, F.; Bonafede, A.; Brüggen, M.; Wilber, A.; Harwood, J. J.; Murgia, M.; Shimwell, T.; Rafferty, D.; Shulevski, A.; Brienza, M.; Hardcastle, M. J.; Morganti, R.; Röttgering, H.; Clarke, A. O.; de Gasperin, F.; van Weeren, R.; Best, P. N.; Botteon, A.; Brunetti, G.; Cassano, R. (2018)
    Feedback by radio-loud active galactic nuclei (AGNs) in galaxy groups is not fully understood. Open questions include the duty cycle of the AGN, the spatial extent of the radio lobes, the effect they have on the intragroup ...
  • Turbulent magnetic fields in the merging galaxy cluster MACS J0717.5+3745 
    Rajpurohit, K.; Hoeft, M.; Wittor, D.; van Weeren, R. J.; Vazza, F.; Rudnick, L.; Rajpurohit, S.; Forman, William R.; Riseley, C. J.; Brienza, M.; Bonafede, A.; Rajpurohit, A. S.; Domínguez-Fernández, P.; Eilek, J.; Bonnassieux, E.; Brüggen, M.; Loi, F.; Röttgering, H. J. A.; Drabent, A.; Locatelli, N.; Botteon, A.; Brunetti, G.; Clarke, T. E. (2022)
    We present wideband (1 âˆ' 6.5 GHz) polarimetric observations, obtained with the Karl G. Jansky Very Large Array, of the merging galaxy cluster MACS J0717.5+3745, which hosts one of the most complex known radio relic and ...
  • Understanding the radio relic emission in the galaxy cluster MACS J0717.5+3745: Spectral analysis 
    Rajpurohit, K.; Wittor, D.; van Weeren, R. J.; Vazza, F.; Hoeft, M.; Rudnick, L.; Locatelli, N.; Eilek, J.; Forman, W. R.; Bonafede, A.; Bonnassieux, E.; Riseley, C. J.; Brienza, M.; Brunetti, G.; Brüggen, M.; Loi, F.; Rajpurohit, A. S.; Röttgering, H. J. A.; Botteon, A.; Clarke, T. E.; Drabent, A.; Domínguez-Fernández, P.; Di Gennaro, G.; Gastaldello, F. (2021)
    Radio relics are diffuse, extended synchrotron sources that originate from shock fronts generated during cluster mergers. The massive merging galaxy cluster MACS J0717.5+3745 hosts one of the more complex relics known to ...

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