Browsing by Author "Readhead, Anthony C. S."

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    • The Cosmic Background Imager 2 
      Taylor, Angela C.; Jones, Michael E.; Allison, James R.; Angelakis, Emmanouil; Bond, J. Richard; Bronfman Aguiló, Leonardo; Bustos, Ricardo; Davis, Richard J.; Dickinson, Clive; Leech, Jamie; Mason, Brian S.; Myers, Steven T.; Pearson, Timothy J.; Readhead, Anthony C. S.; Reeves, Rodrigo; Shepherd, Martin C.; Sievers, Jonathan L. (2011)
      We describe an upgrade to the Cosmic Background Imager instrument to increase its surface brightness sensitivity at small angular scales. The upgrade consisted of replacing the 13 0.9-m antennas with 1.4-m antennas ...
    • Interstellar scintillation, ISS, and intrinsic variability of radio AGN 
      Jauncey, David L.; Koay, Jun Yi; Bignall, Hayley; Macquart, Jean-Pierre; Pursimo, Tapio; Giroletti, Marcello; Hovatta, Talvikki; Kiehlmann, Sebastian; Rickett, Barney; Readhead, Anthony C. S.; Max-Moerbeck, Walter; Vedantham, Harish; Reynolds, Cormac; Lovell, James; Ojha, Roopesh; Kedziora Chudczer, Lucyna (Elsevier, 2020)
      We investigate the relationship between the 5 GHz interstellar scintillation (ISS) and the 15 GHz intrinsic variability of the compact, radio-selected active galactic nuclei (AGN) common to the Microarcsecond Scintillation-Induced ...
    • Multiwavelength variability power spectrum analysis of the blazars 3C 279 and PKS 1510–089 on multiple timescales 
      Goyal, Arti; Soida, Marian; Stawarz, Lukasz; Wiita, Paul J.; Nilsson, Kari; Jorstad, Svetlana; Marscher, Alan P.; Aller, Margo F.; Aller, Hugh D.; Lähteenmäki, Anne; Hovatta, Talvikki; Zoła, Staszek; Nalewajko, Krzysztof; Tornikoski, Merja; Tammi, Joni; Hodges, Mark; Kiehlmann, Sebastian; Readhead, Anthony C. S.; Max-Moerbeck Astudillo, Walter Kennerth; Lindfors, Elina; Ramazani, Vandad Fallah; Reichart, D. E.; Caton, D. B.; Valverde, Janeth; Horan, Deirdre; Ojha, Roopesh; Van Zyl, Pfesesani (IOP, 2022)
      We present the results of variability power spectral density (PSD) analysis using multiwavelength radio to GeV gamma-ray light curves covering timescales of decades/years to days/minutes for the blazars 3C 279 and PKS ...