Now showing items 1-6 of 6

    • ATCA monitoring of gamma-ray loud AGN 

      Stevens, J.; Edwards, P. G.; Ojha, R.; Kadler, M.; Hungwe, F.; Dutka, M.; Tingay, S.; Macquart, J. P.; Moin, A.; Lovell, J.; Blanchard, J. (2012-11-12)
      As a critical part of the Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry (TANAMI) program, in November 2007 the Australia Telescope Compact Array (ATCA) started monitoring the radio spectra of ...
    • The Gamma-Ray Blazar PKS 0208-512, a Multi-Wavelength Investigation 

      Blanchard, J. M.; Lovell, J. E. J.; Dickey, J.; Ojha, R.; Kadler, M.; Nesci, R.; Edwards, P. G.; Stevens, J.; Dutka, M.; Muller, C.; Pursimo, T. (2012-06-27)
      The gamma-ray blazar PKS 0208-512 has shown strong periods of flaring, at all frequencies from radio to gamma-ray. This has led to its inclusion in the TANAMI project, which tracks the jets of southern AGN using VLBI as ...
    • Selecting highly-compact radio sources for the definition of the celestial reference frame 

      Charlot, Patrick; Fey, Alan L.; Ojha, Roopesh; Boboltz, David A.; Camargo, J. I. B.; Collioud, A. (Cambridge University Press, 2006-08)
      We discuss the issue of selecting highly-compact radio sources for the definition of the celestial reference frame.
    • TANAMI - Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry 

      Muller, Cornelia; Kadler, Matthias; Ojha, Roopesh; Bock, M.; Booth, R.; Dutka, M. S.; Edwards, P. G.; Fey, A. L.; Fuhrmann, L.; Hase, H.; Horiuchi, S.; Hungwe, F.; Ros, E.; Taylor, G. B.; Thompson, D. J.; Tingay, S. J.; Tosti, G.; Tzioumis, A. K.; Wilms, J.; Zensus, J. A. (2010-01-18)
      We present a summary of the observation strategy of TANAMI (Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry), a monitoring program to study the parsec-scale structure and dynamics of relativistic ...
    • TANAMI counterparts to IceCube high-energy neutrino events 

      Krauß, Felicia; Wang, Bingjie; Baxter, Claire; Kadler, Matthias; Mannheim, Karl; Ojha, Roopesh; Gräfe, Christina; Muller, Cornelia; Wilms, Joern; Carpenter, Bryce; Schulz, Robert; TANAMI Collaboration; Fermi-LAT Collaboration (arXiv, 2015-02-10)
      Since the discovery of a neutrino flux in excess of the atmospheric background by the IceCube Collaboration, searches for the astrophysical sources have been ongoing. Due to the steeply falling background towards higher ...
    • TANAMI: Milliarcsecond Resolution Observations of Extragalactic Gamma-ray Sources 

      Ojha, Roopesh; Kadler, M.; Böck, M.; Booth, R.; Dutka, M. S.; Edwards, P. G.; Fey, A. L.; Fuhrmann, L.; Gaume, R. A.; Hase, H.; Horiuchi, S.; Jauncey, D.L.; Johnston, K. J.; Katz, U.; Lister, M.; Lovell, J. E. J.; Müller, C.; Plötz, C.; Quick, J. F. H.; Ros, E.; Taylor, G. B.; Thompson, D. J.; Tingay, S. J.; Tosti, G.; Tzioumis, A. K.; Wilms, J.; Zensus, J. A. (arXiv, 2009-12-31)
      The TANAMI (Tracking AGN with Austral Milliarcsecond Interferometry) and associated programs provide comprehensive radio monitoring of extragalactic gamma-ray sources south of declination -30 degrees. Joint quasi-simultaneous ...