activity
20242026
most citedRevealing faint compact radio jets at redshifts above 5 with very long baseline interferometry

5 citations · 13 across the 10 of their papers we have counts for

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astro-ph.HE2026

A broadband outburst of the compact steep-spectrum quasar 3C 138 in 2024-2026

T. V. Mufakharov, Yu. V. Sotnikova, V. V. Vlasyuk +20

After several decades of relative quiescence, the compact steep-spectrum quasar 3C 138 entered an active phase in 2024-2026, exhibiting strong broadband flaring. We investigate its…

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.HE2026

Synchrotron Self-Absorption Spectral Modeling Reveals a Magnetically Driven Shock-in-Jet Scenario in Blazar 1156+295

Wancheng Xu, Lang Cui, Tao An +6

Unveiling the launching and driving mechanisms of powerful jets in active galactic nuclei (AGNs) is crucial for understanding the co-evolution of supermassive black holes (SMBHs) a…

astro-ph.HE2025

High-redshift quasars at -- III. Parsec-scale jet properties from VLBI observations

Shaoguang Guo, Tao An, Yuanqi Liu +5

High redshift active galactic nuclei (AGN) provide key insights into early supermassive black hole growth and cosmic evolution. This study investigates the parsec-scale properties…

astro-ph.HE2025

High-resolution radio observations of TeV candidate sources

J. Kőmíves, K. É. Gabányi, S. Frey +3

Radio-loud active galactic nuclei (AGN) with their jets pointed close to our line of sight constitute the majority of extragalactic -ray sources and significantly contribute to…