Browsing by Author "Heywood, I."

Now showing items 1-12 of 12

    • ATCA detections of massive molecular gas reservoirs in dusty, high-z radio galaxies 

      Heywood, I.; Contreras, Y.; Smith, D. J. B.; Cooray, A.; Dunne, L.; Gomez, L.; Ibar, E.; Ivison, R. J.; Jarvis, M. J.; Michalowski, M. J.; Riechers, D. A.; Werf, P. van der (2016-10-27)
      Observations using the 7 mm receiver system on the Australia Telescope Compact Array have revealed large reservoirs of molecular gas in two high-redshift radio galaxies: HATLAS J090426.9+015448 (z = 2.37) and HATLAS ...

    • The Curious Case of the “Heartworm” Nebula 

      Cotton, W. D.; Camilo, F.; Becker, W.; Condon, J. J.; Forbrich, J.; Heywood, I.; Hugo, B.; Legodi, S.; Mauch, T.; Predehl, P.; Slane, P.; Thompson, M. A. (2022-07-27)
      The curious Galactic features near G357.2−0.2 were observed with the MeerKAT radio interferometer array in the UHF and L bands (0.56–1.68 GHz). There are two possibly related features: a newly identified faint heart-shaped ...

    • A deep / wide 1-2 GHz snapshot survey of SDSS Stripe 82 using the Karl G. Jansky Very Large Array in a compact hybrid configuration 

      Heywood, I.; Jarvis, M. J.; Baker, A. J.; Bannister, K. W.; Carvalho, C. S.; Hardcastle, M.; Hilton, M.; Moodley, K.; Smirnov, O. M.; Smith, D. J. B.; White, S. V.; Wollack, E. J. (2016-08-21)
      We have used the Karl G. Jansky Very Large Array to image ~100 sq. deg. of SDSS Stripe 82 at 1-2 GHz. The survey consists of 1,026 snapshot observations of 2.5 minutes duration, using the hybrid CnB configuration. The ...

    • Herschel-ATLAS/GAMA: What determines the far-infrared properties of radio galaxies? 

      Virdee, J.S.; Hardcastle, M.J.; Rawlings, S.; Rigopoulou, D.; Mauch, T.; Jarvis, M.J.; Verma, A.; Smith, Daniel; Heywood, I.; White, S. V.; Baes, M.; Cooray, A.; de Zotti, G.; Eales, S.; Michalowski, M. J.; Bourne, N.; Dariush, A.; Dunne, L.; Hopwood, R.; Ibar, E.; Maddox, S.; Smith, M. W. L.; Valiante, E. (2013-06)
      We perform a stacking analysis of Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) data in order to obtain isothermal dust temperatures and rest-frame luminosities at 250 mu m (L-250), for a well-defined sample ...

    • Herschel-ATLAS: far-infrared properties of radio-selected galaxies 

      Hardcastle, M.J.; Virdee, J.S.; Jarvis, M.J.; Bonfield, D.; Dunne, L.; Rawlings, S.; Stevens, J. A.; Christopher, N. M.; Heywood, I.; Mauch, Tom; Rigopoulou, D.; Verma, A.; Baldry, Ivan K.; Bamford, S. P.; Buttiglione, S.; Cava, A.; Clements, D. L.; Cooray, A.; Croom, S. M.; Dariush, A.; de Zotti, G.; Eales, S.; Fritz, J.; Hill, D. T.; Hughes, D.; Hopwood, R.; Ibar, E.; Ivison, Rob J.; Jones, D.H.; Loveday, J.; Maddox, S. J.; Michalowski, M. J.; Negrello, M.; Norberg, P.; Pohlen, M.; Prescott, M.; Rigby, E. E.; Robotham, A. S. G.; Rodighiero, G.; Scott, D.; Sharp, R.; Smith, Daniel; Temi, P.; van Kampen, E. (2010)
      We use the Herschel-Astrophysical Terahertz Large Area Survey (ATLAS) science demonstration data to investigate the star formation properties of radio-selected galaxies in the GAMA-9h field as a function of radio luminosity ...

    • LOFAR observations of the XMM-LSS field 

      Hale, C. L.; Williams, W.; Jarvis, M. J.; Hardcastle, M. J.; Morabito, Leah K.; Shimwell, T. W.; Tasse, C.; Best, P. N.; Harwood, J. J.; Heywood, I.; Prandoni, I.; Röttgering, H. J. A.; Sabater, J.; Smith, D. J. B.; Weeren, R. J. van (2018-11-19)
      We present observations of the XMM Large-Scale Structure (XMM-LSS) field observed with the LOw Frequency ARray (LOFAR) at 120-168 MHz. Centred at a J2000 declination of $-4.5^{\circ}$, this is a challenging field to observe ...

    • MIGHTEE: Are giant radio galaxies more common than we thought? 

      Delhaize, J.; Heywood, I.; Prescott, M.; Jarvis, M. J.; Delvecchio, I.; Whittam, I. H.; White, S. V.; Hardcastle, M. J.; Hale, C. L.; Afonso, J.; Ao, Y.; Brienza, M.; Brueggen, M.; Collier, J. D.; Daddi, E.; Glowacki, M.; Maddox, N.; Morabito, L. K.; Prandoni, I.; Randriamanakoto, Z.; Sekhar, S.; An, Fangxia; Adams, N. J.; Blyth, S.; Bowler, R. A. A.; Leeuw, L.; Marchetti, L.; Randriamampandry, S. M.; Thorat, K.; Seymour, N.; Smirnov, O.; Taylor, A. R.; Tasse, C.; Vaccari, M. (2020-12-14)
      We report the discovery of two new giant radio galaxies (GRGs) using the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey. Both GRGs were found within a 1 deg^2 region inside the COSMOS field. ...

    • MIGHTEE: the nature of the radio-loud AGN population 

      Whittam, I. H.; Jarvis, M. J.; Hale, C. L.; Prescott, M.; Morabito, L. K.; Heywood, I.; Adams, N. J.; Afonso, J.; An, Fangxia; Ao, Y.; Bowler, R. A.; Collier, J. D.; Deane, R. P.; Delhaize, J.; Frank, B.; Glowacki, M.; Hatfield, P. W.; Maddox, N.; Marchetti, L.; Matthews, A. M.; Prandoni, I.; Randriamampandry, S.; Randriamanakoto, Z.; Smith, D. J. B.; Taylor, A. R.; Thomas, N. L.; Vaccari, M. (2022-10-30)
      We study the nature of the faint radio source population detected in the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Early Science data in the COSMOS field, focusing on the properties of the ...

    • MIGHTEE: total intensity radio continuum imaging and the COSMOS / XMM-LSS Early Science fields 

      Heywood, I.; Jarvis, M. J.; Hale, C. L.; Whittam, I. H.; Bester, H. L.; Hugo, B.; Kenyon, J. S.; Prescott, M.; Smirnov, O. M.; Tasse, C.; Afonso, J. M.; Best, P. N.; Collier, J. D.; Deane, R. P.; Frank, B. S.; Hardcastle, M. J.; Knowles, K.; Maddox, N.; Murphy, E. J.; Prandoni, I.; Randriamampandry, S. M.; Santos, M. G.; Sekhar, S.; Tabatabaei, F.; Taylor, A. R.; Thorat, K. (2021-10-21)
      MIGHTEE is a galaxy evolution survey using simultaneous radio continuum, spectro-polarimetry, and spectral line observations from the South African MeerKAT telescope. When complete, the survey will image $\sim$20 deg$^{2}$ ...

    • Radio Galaxy Zoo : host galaxies and radio morphologies derived from visual inspection 

      Banfield, J. K.; Wong, O. I.; Willett, K. W.; Norris, R. P.; Rudnick, L.; Shabala, S. S.; Simmons, B. D.; Snyder, C.; Garon, A.; Seymour, N.; Middelberg, E.; Andernach, H.; Lintott, C. J.; Jacob, K.; Kapinska, A. D.; Mao, M. Y.; Masters, K. L.; Jarvis, M. J.; Schawinski, K.; Paget, E.; Simpson, R.; Klockner, H. R.; Bamford, S.; Burchell, T.; Chow, K. E.; Cotter, G.; Fortson, L.; Heywood, I.; Jones, T. W.; Kaviraj, S.; Lopez-Sanchez, A. R.; Maksym, W. P.; Polsterer, K.; Borden, K.; Hollow, R. P.; Whyte, L. (2015-11-01)
      We present results from the first twelve months of operation of Radio Galaxy Zoo, which upon completion will enable visual inspection of over 170,000 radio sources to determine the host galaxy of the radio emission and the ...

    • Radio Galaxy Zoo: discovery of a poor cluster through a giant wide-angle tail radio galaxy 

      Banfield, J. K.; Andernach, H.; Kapinska, A. D.; Rudnick, L.; Hardcastle, M. J.; Cotter, G.; Vaughan, S.; Jones, T. W.; Heywood, I.; Wing, J. D.; Wong, O. I.; Matorny, T.; Terentev, I. A.; Lopez-Sanchez, A. R.; Norris, R. P.; Seymour, N.; Shabala, S. S.; Willett, K. W. (2016-08-11)
      We have discovered a previously unreported poor cluster of galaxies (RGZ-CL J0823.2+0333) through an unusual giant wide-angle tail radio galaxy found in the Radio Galaxy Zoo project. We obtained a spectroscopic redshift ...

    • The radio spectral energy distribution of infrared-faint radio sources 

      Herzog, A.; Norris, R. P.; Middelberg, E.; Seymour, N.; Spitler, L. R.; Emonts, B. H. C.; Franzen, T. M. O.; Hunstead, R.; Intema, H. T.; Marvil, J.; Parker, Q. A.; Sirothia, S. K.; Hurley-Walker, N.; Bell, M.; Bernardi, G.; Bowman, J. D.; Briggs, F.; Cappallo, R. J.; Callingham, J. R.; Deshpande, A. A.; Dwarakanath, K. S.; For, B. -Q.; Greenhill, L. J.; Hancock, P.; Hazelton, B. J.; Hindson, L.; Johnston-Hollitt, M.; Kapinska, A. D.; Kaplan, D. L.; Lenc, E.; Lonsdale, C. J.; McKinley, B.; McWhirter, S. R.; Mitchell, D. A.; Morales, M. F.; Morgan, E.; Morgan, J.; Oberoi, D.; Offringa, A.; Ord, S. M.; Prabu, T.; Procopio, P.; Shankar, N. Udaya; Srivani, K. S.; Staveley-Smith, L.; Subrahmanyan, R.; Tingay, S. J.; Wayth, R. B.; Webster, R. L.; Williams, A.; Williams, C. L.; Wu, C.; Zheng, Q.; Chippendale, A. P.; Harvey-Smith, L.; Heywood, I.; Indermuehle, B.; Popping, A.; Sault, R. J.; Whiting, M. T. (2016-09-01)
      Infrared-faint radio sources (IFRS) are a class of radio-loud (RL) active galactic nuclei (AGN) at high redshifts (z > 1.7) that are characterised by their relative infrared faintness, resulting in enormous radio-to-infrared ...