activity
20092020
most citedCoincidence of a high-fluence blazar outburst with a PeV-energy neutrino event

248 citations · 574 across the 13 of their papers we have counts for

collaborators

14 papers

astro-ph.HE2020★ 2 cited

Gamma-ray emission in radio galaxies under the VLBI scope -- II. The relationship between gamma-ray emission and parsec-scale jets in radio galaxies

R. Angioni, E. Ros, M. Kadler +22

Following our study of the radio and high-energy properties of -ray-emitting radio galaxies, here we investigate the kinematic and spectral properties of the parsec-scale jets o…

astro-ph.HE2019★ 32 cited

Gamma-ray emission in radio galaxies under the VLBI scope -- I. Parsec-scale kinematics and high-energy properties of -ray detected TANAMI radio galaxies

R. Angioni, E. Ros, M. Kadler +22

In the framework of the TANAMI multi-wavelength and VLBI monitoring, we study the evolution of the parsec-scale radio emission in radio galaxies in the southern hemisphere and thei…

astro-ph.HE2017★ 16 cited

TANAMI: Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry - II. Additional Sources

C. Müller, M. Kadler, R. Ojha +31

TANAMI is a multiwavelength program monitoring active galactic nuclei (AGN) south of -30deg declination including high-resolution Very Long Baseline Interferometry (VLBI) imaging,…

astro-ph.GA2017★ 3 cited

PKS 1954-388: RadioAstron Detection on 80,000 km Baselines and Multiwavelength Observations

P. G. Edwards, Y. Y. Kovalev, R. Ojha +24

We present results from a multiwavelength study of the blazar PKS 1954-388 at radio, UV, X-ray, and gamma-ray energies. A RadioAstron observation at 1.66 GHz in June 2012 resulted…

astro-ph.HE2016★ 25 cited

The TANAMI Multiwavelength Program: Dynamic SEDs of Southern Blazars

Felicia Krauß, Joern Wilms, Matthias Kadler +32

Simultaneous broadband spectral and temporal studies of blazars are an important tool for investigating active galactic nuclei (AGN) jet physics. We study the spectral evolution be…

astro-ph.HE2016★ 248 cited

Coincidence of a high-fluence blazar outburst with a PeV-energy neutrino event

M. Kadler, F. Krauß, K. Mannheim +40

The discovery of extraterrestrial very-high-energy neutrinos by the IceCube collaboration has launched a quest for the identification of their astrophysical sources. Gamma-ray blaz…

astro-ph.HE2016★ 18 cited

Radio and Gamma-ray Properties of Extragalactic Jets from the TANAMI Sample

M. Böck, M. Kadler, C. Müller +28

Using high-resolution radio imaging with VLBI techniques, the TANAMI program has been observing the parsec-scale radio jets of southern (declination south of -30°) gamma-ray bright…

astro-ph.HE2014★ 85 cited

TANAMI monitoring of Centaurus A: The complex dynamics in the inner parsec of an extragalactic jet

C. Müller, M. Kadler, R. Ojha +24

Centaurus A is the closest radio-loud active galaxy. Very Long Baseline Interferometry (VLBI) enables us to study the jet-counterjet system on milliarcsecond (mas) scales, providin…

astro-ph.HE2014★ 64 cited

TANAMI Blazars in the IceCube PeV Neutrino Fields

F. Krauß, M. Kadler, K. Mannheim +39

The IceCube Collaboration has announced the discovery of a neutrino flux in excess of the atmospheric background. Due to the steeply falling atmospheric background spectrum, events…

astro-ph.HE2013★ 34 cited

The unusual multiwavelength properties of the gamma-ray source PMNJ1603-4904

Cornelia Müller, M. Kadler, R. Ojha +27

We investigate the nature and classification of PMNJ1603-4904, a bright radio source close to the Galactic plane, which is associated with one of the brightest hard-spectrum gamma-…

astro-ph.HE2011★ 45 cited

Dual-frequency VLBI study of Centaurus A on sub-parsec scales

Cornelia Müller, M. Kadler, R. Ojha +16

Centaurus A is the closest active galactic nucleus. High resolution imaging using Very Long Baseline Interferometry (VLBI) enables us to study the spectral and kinematic behavior o…

astro-ph.CO2010

The TANAMI Program

Roopesh Ojha, Matthias Kadler, Moritz Boeck +5

The TANAMI (Tracking AGN with Austral Milliarcsecond Interferometry) program provides comprehensive VLBI monitoring of extragalactic gamma-ray sources south of declination -30 degr…

astro-ph.CO2009

TANAMI: Milliarcsecond Resolution Observations of Extragalactic Gamma-ray Sources

Roopesh Ojha, M. Kadler, M. Böck +24

The TANAMI (Tracking AGN with Austral Milliarcsecond Interferometry) and associated programs provide comprehensive radio monitoring of extragalactic gamma-ray sources south of decl…

astro-ph.HE2009★ 2 cited

The TANAMI Program

Cornelia Mueller, Matthias Kadler, Roopesh Ojha +23

TANAMI (Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry) is a monitoring program to study the parsec-scale structures and dynamics of relativistic jets i…