135 citations · 1.3k across the 68 of their papers we have counts for
8 papers · 1 filter
PKS 1502+106: A high-redshift Fermi blazar at extreme angular resolution. Structural dynamics with VLBI imaging up to 86 GHz
V. Karamanavis, L. Fuhrmann, T. P. Krichbaum +7
Context. Blazars are among the most energetic objects in the Universe. In 2008 August, Fermi/LAT detected the blazar PKS 1502+106 showing a rapid and strong gamma-ray outburst foll…
First 230 GHz VLBI Fringes on 3C 279 using the APEX Telescope
J. Wagner, A. L. Roy, T. P. Krichbaum +52
We report about a 230 GHz very long baseline interferometry (VLBI) fringe finder observation of blazar 3C 279 with the APEX telescope in Chile, the phased submillimeter array (SMA)…
5 year Global 3-mm VLBI survey of Gamma-ray active blazars
J. A. Hodgson, T. P. Krichbaum, A. P. Marscher +7
The Global mm-VLBI Array (GMVA) is a network of 14 3\,mm and 7\,mm capable telescopes spanning Europe and the United States, with planned extensions to Asia. The array is capable o…
Localizing the rays from blazar PKS 1502+106
Vassilis Karamanavis, L. Fuhrmann, T. P. Krichbaum +7
Blazars are among the most variable objects in the universe. They feature energetic jets of plasma that launch from the cores of these active galactic nuclei (AGN), triggering acti…
The Nuclear Structure of 3C84 with Space VLBI (RadioAstron) Observations
Gabriele Giovannini, Monica Orienti, Tuomas Savolainen +15
The radio galaxy 3C84 is a representative of gamma-ray-bright misaligned active galactic nuclei (AGN) and one of the best laboratories to study the radio properties of subparsec sc…
Perplexing correlations between Gamma-ray emission and parsec-scale jet orientation variations in the BL Lac object S5 0716+714
B. Rani, T. P. Krichbaum, A. P. Marscher +4
The analysis of -ray flux variability along with the parsec-scale jet kinematics suggests that the high-energy radiation in the BL Lac object S5 0716+714 has a significant corre…
Connection between inner jet kinematics and broadband flux variability in the BL Lac object S5 0716+714
B. Rani, T. P. Krichbaum, A. P. Marscher +5
We present a high-frequency very long baseline interferometry (VLBI) kinematical study of the BL Lac object S5 0716+714 over the time period of September 2008 to October 2010. The…
Microarcsecond structure of an AGN Jet via Interstellar Scintillation
Hayley Bignall, Jean-Pierre Macquart, Leith Godfrey +2
We have used the broadband backend available at the ATCA to study the fast interstellar scintillation of quasar PKS 1257-326, resolving the core shift as a function of frequency on…