3 papers
astro-ph.HE2025
The most distant -ray flare to date: a multiwavelength campaign on the blazar GB6 B1428+4217
Andrea Gokus, Manel Errando, Ivan Agudo +12
In November 2023, the Fermi Large Area Telescope detected a -ray flare from the high-redshift blazar GB6 B1428+4217 (). We initiated a multi-wavelength follow-up campa…
astro-ph.HE2024
A gamma-ray flare from TXS 1508+572: characterizing the jet of a blazar in the early Universe
Andrea Gokus, Markus Böttcher, Manel Errando +13
Blazars can be detected from very large distances due to their high luminosity. However, the detection of -ray emission of blazars beyond has only been confirmed for a sm…
astro-ph.HE2024
Rapid Variability of Mrk 421 During Extreme Flaring as Seen Through the Eyes of XMM-Newton
A. Gokus, J. Wilms, M. Kadler +31
By studying the variability of blazars across the electromagnetic spectrum, it is possible to resolve the underlying processes responsible for rapid flux increases, so-called flare…