activity
19992026
most citedOptical and radio behaviour of the BL Lacertae object 0716+714

217 citations · 444 across the 16 of their papers we have counts for

collaborators

17 papers

astro-ph.HE2026

SDSSJ110546.07+145202.4: The first long-duration radio changing-look NLS1 galaxy

S. Komossa, D. Grupe, A. Kraus +12

SDSSJ110546.07+145202.4 stands out as a unique radio changing-look Narrow-line Seyfert 1 (NLS1) galaxy that has brightened dramatically and shows an exceptionally long duration of…

astro-ph.HE2024

TELAMON: Effelsberg monitoring of AGN jets with very-high-energy astroparticle emission -- I. Program description and sample characterization

F. Eppel, M. Kadler, J. Heßdörfer +23

Aims. We introduce the TELAMON program which is using the Effelsberg 100-m telescope to monitor the radio spectra of active galactic nuclei (AGN) under scrutiny in astroparticle ph…

astro-ph.GA2019★ 29 cited

A discovery of young radio sources in the cores of giant radio galaxies selected at hard X-rays

G. Bruni, F. Panessa, L. Bassani +9

Giant Radio Galaxies (GRG) are the largest single entities in the Universe, having a projected linear size exceeding 0.7 Mpc, which implies that they are also quite old objects. Th…

astro-ph.IM2017★ 43 cited

Full-Stokes polarimetry with circularly polarized feeds - Sources with stable linear and circular polarization in the GHz regime

I. Myserlis, E. Angelakis, A. Kraus +8

We present a pipeline that allows recovering reliable information for all four Stokes parameters with high accuracy. Its novelty relies on the treatment of the instrumental effects…

astro-ph.GA2015★ 10 cited

Intra-day variability observations and the VLBI structure analysis of quasar S4 0917+624

X. Liu, L. -G. Mi, J. Liu +7

The IDV observations of S4 0917+624 were carried out monthly, from August 2005 to January 2010, with the Urumqi 25m radio telescope at 4.8 GHz. The quasar S4 0917+624 exhibits only…

astro-ph.GA2015★ 34 cited

RadioAstron space VLBI imaging of polarized radio emission in the high-redshift quasar 0642+449 at 1.6 GHz

A. P. Lobanov, J. L. Gómez, G. Bruni +8

Polarization of radio emission in extragalactic jets at a sub-milliarcsecond angular resolution holds important clues for understanding the structure of the magnetic field in the i…