activity
19972026
most citedIs RX J185635-375 a Quark Star?

228 citations · 3.5k across the 111 of their papers we have counts for

collaborators

118 papers

astro-ph.HE2026

Discovery of minute-scale polarization angle rotation in a supermassive black hole jet

Aristeidis Polychronakis, Ioannis Liodakis, Dmitry Blinov +7

Relativistic jets from supermassive black holes oriented towards our line of sight called blazars have puzzled the astronomical community for decades. Their fast jets and preferent…

astro-ph.HE2026

X-ray polarization of the Compton-thin Seyfert galaxy NGC 5506 with IXPE

Daniele Tagliacozzo, Alessandro Leonardo Lai, Andrea Gnarini +14

We report on the observation of the Compton-thin Seyfert galaxy NGC~5506 performed with the Imaging X-ray Polarimetry Explorer (IXPE). The observation, with a net observing time of…

astro-ph.IM2026

EXPO: a quantum leap in fast, wide-band X-ray polarimetry for astrophysics

Paolo Soffitta, Sebastien Guillot, Ian Hutchinson +137

The Enhanced X-ray Polarimetry Observatory (EXPO) is a mission concept proposed to ESA as an M8 candidate, with a prospective launch in 2041. Building on the scientific success of…

astro-ph.HE2026

Discovery of Strong Energy-Dependent X-ray Polarization in the Intermediate State of GS 1354-64

Swati Ravi, Lorenzo Marra, James F. Steiner +20

We report the discovery of significant X-ray polarization from the dynamically confirmed black hole X-ray binary (BHXB) GS 1354-64 during its 2025-2026 outburst, obtained with the…

astro-ph.HE2026

Magnetic-field Order in the Southwestern Rim of RCW 86 Constrained Using X-Ray Polarimetry

Stefano Silvestri, Dmitry Prokhorov, Jacco Vink +97

RCW 86 is a supernova remnant whose origin has recently been linked to an off-center explosion within a cavity created by its progenitor star. In the southwestern region, the forwa…

astro-ph.HE2026

XPE and VLT /FORS2 polarimetry challenge the Seyfert-1.9 classification of MCG-05-23-16

Frédéric Marin, Daniele Tagliacozzo, Francesco Ursini +21

We report the third observation of the Seyfert-1.9 active galactic nucleus (AGN) MCG-05-23-16 with the Imaging X-ray Polarimetry Explorer (\textit{IXPE}), together with optical spe…