Publications (71)
Millimeter VLBI and Variability in AGN Jets
T. P. Krichbaum, D. A. Graham, A. Witzel +4
SKA in VLBI: Impact on Studies of Small Scale Structures in Active Galactic Nuclei
T. P. Krichbaum, A. Witzel, J. A. Zensus
Motion and Properties of Nuclear Radio Components in Seyfert Galaxies Seen with VLBI
E. Middelberg, A. L. Roy, N. M. Nagar +7
From Centimeter to Millimeter Wavelengths: A High Angular Resolution Study of 3C273
T. P. Krichbaum, A. Witzel, J. A. Zensus
Proper motion in Cygnus A
U. Bach, T. P. Krichbaum, W. Alef +2
On the influence of the Sun on the rapid variability of compact extragalactic sources
N. Marchili, T. P. Krichbaum, X. Liu +4
The Size of IDV Jet Cores
T. Beckert, T. P. Krichbaum, G. Cimo' +4
VSOP imaging of S5 0836+710: a close-up on plasma instabilities in the jet
A. P. Lobanov, T. P. Krichbaum, A. Witzel +6
VSOP Observations of the Blazar S5 2007+77
K. E. Gabanyi, T. P. Krichbaum, A. Kraus +2
Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71: II. A search for intra-day variability at millimetre wavelengths with the IRAM 30 m telescope
I. Agudo, T. P. Krichbaum, H. Ungerechts +12
Millimetre-VLBI Monitoring of AGN with Sub-milliarcsecond Resolution
A. Pagels, T. P. Krichbaum, D. A. Graham +10
VLBI Observations of the Galactic Center Source Sgr A* at 86 GHz and 215 GHz
T. P. Krichbaum, A. Witzel, J. A. Zensus
Multi-frequency Study of Intraday Variable Sources
Giuseppe Cimò, L. Fuhrmann, T. P. Krichbaum +4
Towards millimeter VLBI
T. P. Krichbaum, U. Bach, D. A. Graham +6
The IDV source J1128+5925, a new candidate for annual modulation?
K. E. Gabanyi, N. Marchili, T. P. Krichbaum +9
High precision difference astrometry applied to the triplet of S5 radio sources B1803+784/Q1928+738/B2007+777
E. Ros, J. M. Marcaide, J. C. Guirado +5
Kinematic Study of the Blazar 0716+714
U. Bach, T. P. Krichbaum, S. Britzen +3
Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71. I. Simultaneous broadband observations during November 2003
L. Ostorero, S. J. Wagner, J. Gracia +6
A High-Frequency and Multi-Epoch VLBI Study of 3C 273
T. P. Krichbaum, D. A. Graham, A. Witzel +5
Kinematic Study of the Blazar S5 0716+714
U. Bach, T. P. Krichbaum, E. Ros +5
A Possible Periodicity in the Radio Lightcurves of 3C454.3
S. J. Qian, N. A. Kudryavtseva, S. Britzen +6
CGRO, Radio and Optical Observations of the Quasar NRAO 140
M. Maisack, R. Staubert, K. Otterbein +3
Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71, III. Rapid and correlated flux density variability from radio to sub-mm bands
L. Fuhrmann, T. P. Krichbaum, A. Witzel +22
The Role of Millimeter VLBI Observations in AGN Research
T. P Krichbaum, A. Witzel, J. A. Zensus
Space-VLBI Polarimetry of the BL Lac Object S5 0716+714: Rapid Polarization Variability in the VLBI core
U. Bach, T. P. Krichbaum, A. Kraus +2
Gamma-ray to radio activity and ejection of a VLBI component in the jet of the S5-quasar 0836+710
K. Otterbein, T. P. Krichbaum, A. Kraus +4
Quasi-Periodic Changes in the Parsec-Scale Jet of 3C345
J. Klare, J. A. Zensus, A. P. Lobanov +3
Rapid and correlated variability of blazar S5 0716+71 from radio- to sub-mm bands
L. Fuhrmann, T. P. Krichbaum, A. Witzel +9
High Angular Resolution Monitoring of Prominent AGN at 86 GHz
T. P. Krichbaum, A. Witzel, J. A. Zensus
A seasonal cycle and an abrupt change in the variability characteristics of the intraday variable source S4 0954+65
N. Marchili, T. P. Krichbaum, X. Liu +5
High-frequency VLBI observations of SgrA* during a multi-frequency campaign in May 2007
R. -S. Lu, T. P. Krichbaum, A. Eckart +5
Superluminal non-ballistic jet swing in the quasar NRAO 150 revealed by mm-VLBI
I. Agudo, U. Bach, T. P. Krichbaum +11
Models of Polarized and Variable Radio Emission for IDV Source 0917+624
T. Beckert, A. Kraus, T. P. Krichbaum +2
A Helical Model for the Compact Jet in 3C345
W. Steffen, J. A. Zensus, T. P. Krichbaum +2
Multi-frequency measurements of the NVSS foreground sources in the Cosmic Background Imager fields. I. Data release
E. Angelakis, A. Kraus, A. C. S. Readhead +5
"Oscillating" components in the BL Lac object 0716+714?
S. Britzen, V. Meyer, A. Witzel +5
Non-radial motion in the TeV blazar S5 0716+714 The pc-scale kinematics of a BL Lac Object
S. Britzen, V. A. Kam, A. Witzel +6
The Kinematics of S5 1803+784
N. A. Kudryavtseva, S. Britzen, A. Witzel +8
Annual Modulation in the Variability Properties of the IDV-Source 0917+624 ?
L. Fuhrmann, T. P. Krichbaum, G. Cimò +6
A very rapid Extreme Scattering Event in the IDV source 0954+658
G. Cimò, T. Beckert, T. P. Krichbaum +4
VLBI at the highest frequencies - AGN studied with micro-arcsecond resolution
T. P. Krichbaum, I. Agudo, U. Bach +2
Multiwavelength VLBI observations of Sagittarius A*
R. -S. Lu, T. P. Krichbaum, A. Eckart +5
High frequency VLBI observations of the scatter broadened quasar B2005+403
K. E. Gabanyi, T. P. Krichbaum, S. Britzen +4
Sub-milliarcsecond Imaging of SgrA* and M87
T. P. Krichbaum, D. A. Graham, M. Bremer +4
The kinematics in the pc-scale jets of AGN The case of S5 1803+784
S. Britzen, N. A. Kudryavtseva, A. Witzel +8
Towards the Event Horizon - High Resolution VLBI Imaging of Nuclei of Active Galaxies
T. P. Krichbaum, D. A. Graham, A. Witzel +10
Intraday Variability in Northern Hemisphere Radio Sources
T. P. Krichbaum, A. Kraus, L. Fuhrmann +2
Effects of the turbulent ISM on radio observations of quasars
K. Ã. Gabányi, S. Britzen, T. P. Krichbaum +5
The Innermost AGNs with Future mm-VLBI
I. Agudo, T. P. Krichbaum, U. Bach +8
Annual modulation in IDV of quasar 0917+624 due to Interstellar Scintillation
B. J. Rickett, A. Witzel, A. Kraus +2
VLBI observations at 147 GHz: first detection of transatlantic fringes in bright AGN
T. P. Krichbaum, D. A. Graham, W. Alef +21
Dual frequency VSOP imaging of the jet in S5 0836+710
A. P. Lobanov, T. P. Krichbaum, A. Witzel +1
Space VLBI polarimetry of IDV sources: Lessons from VSOP and prospects for VSOP2
U. Bach, T. P. Krichbaum, S. Bernhart +5
86 GHz polarimetry of OVV1633+382 after a major mm flare
B. W. Sohn, T. P. Krichbaum, I. Agudo +4
Compact Intraday Variable Radio Cores: New Observational Approaches
L. Fuhrmann, G. Cimò, T. P. Krichbaum +4
Intraday Radio Variability in Active Galactic Nuclei
A. Kraus, A. Witzel, T. P. Krichbaum
Understanding Scintillation of Intraday Variables
T. Beckert, L. Fuhrmann, G. Cimo +3
Present and Future Millimeter VLBI Imaging of Jets in AGN: The Case of NRAO 150
I. Agudo, T. P. Krichbaum, U. Bach +8
Unusual radio variability in the BL Lac object 0235+164
A. Kraus, A. Quirrenbach, A. P. Lobanov +11
Towards the Event Horizon - The Vicinity of AGN at Micro-Arcsecond Resolution
T. P. Krichbaum, D. A. Graham, W. Alef +18
Modeling nuclei of radio galaxies from VLBI radio observations. Application to the BL Lac Object S5 1803+784
J. Roland, S. Britzen, N. A. Kudryavtseva +2
Is 0716+714 a superluminal blazar?
U. Bach, T. P. Krichbaum, E. Ros +3
Optical and radio behaviour of the BL Lacertae object 0716+714
C. M. Raiteri, M. Villata, G. Tosti +24
2mm Wavelength VLBI of SiO Masers and AGN
S. Doeleman, R. Phillips, A. Rogers +21
J1128+592: a highly variable IDV source
K. E. Gabanyi, N. Marchili, T. P. Krichbaum +9
Understanding BL Lac objects Structural & kinematic mode changes in the BL Lac object PKS 0735+178
S. Britzen, A. Witzel, B. P. Gong +6
Observations of IntraDay Variable sources with the Effelsberg and Urumqi Radio Telescopes
N. Marchili, T. P. Krichbaum, X. Liu +7
Approaching NGC3079 with VLBI
E. Middelberg, T. P. Krichbaum, A. L. Roy +2
Spectral Properties of the Core and the VLBI-Jets of Cygnus A
U. Bach, T. P. Krichbaum, E. Middelberg +4
A global 86 GHz VLBI survey
S. Lee, A. P. Lobanov, T. P. Krichbaum +5
Multi-frequency & Multi-epoch VLBI study of Cygnus A
U. Bach, M. Kadler, T. P. Krichbaum +4