The magnetic-field conditions in astrophysical relativistic jets can be probed by
multiwavelength polarimetry, which has been recently extended to X-rays. For example, one …

The lower-energy peak of the spectral energy distribution of blazars has commonly been
ascribed to synchrotron radiation from relativistic particles in the jets. Despite the consensus …

The recent hint of correlated γ-ray and neutrino emission from the blazar TXS 0506+ 056
has renewed interest in blazars as the source of high-energy neutrinos, in which the …

We report the first> 99% confidence detection of X-ray polarization in BL Lacertae. During a
recent X-ray/γ-ray outburst, a 287 ks observation (2022 November 27–30) was taken using …

We present polarization measurements in the 2–8 keV band from blazar 1ES 0229+ 200, the
first extreme high synchrotron peaked source to be observed by the Imaging X-ray …

X-ray polarization, which now can be measured by the Imaging X-ray Polarimetry Explorer
(IXPE), is a new probe of jets in the supermassive black hole systems of active galactic …

Blazars are a class of jet-dominated active galactic nuclei with a typical double-humped
spectral energy distribution. It is of common consensus that the synchrotron emission is …

The Black Hole Explorer (BHEX) is a next-generation space very long baseline
interferometry (VLBI) mission concept that will extend the ground-based millimeter …

Aims. We aim to probe the magnetic field geometry and particle acceleration mechanism in
the relativistic jets of supermassive black holes. Methods. We conducted a polarimetry …

Blazars are some of the most energetic sources in our universe and among the most
prominent objects in the γ-ray sky. The new era of multimessenger and multiwavelength …