activity
20052025
most citedMAGIC discovery of VHE Emission from the FSRQ PKS 1222+21

376 citations · 5.6k across the 105 of their papers we have counts for

collaborators

106 papers

astro-ph.HE2025

Optical polarimetry of the accreting black hole X-ray binary Swift J1727.81613 over the state transition and radio ejections

Anagha P. Nitindala, Alexandra Veledina, Vadim Kravtsov +7

We present the first optical () polarimetric observations of Swift J1727.81613 during its 2023--2024 outburst. Observations were performed during the X-ray hard-to-soft sta…

astro-ph.HE2025

Identifying the secondary jet in the RadioAstron image of OJ~287

Mauri J. Valtonen, Lankeswar Dey, Staszek Zola +26

The 136 year long optical light curve of OJ~287 is explained by a binary black hole model where the secondary is in a 12 year orbit around the primary. Impacts of the secondary on…

astro-ph.HE2025

Unveiling blazar synchrotron emission: a multiwavelength polarimetric study of HSP and LSP populations

Sara Capecchiacci, Ioannis Liodakis, Riccardo Middei +96

Polarimetric properties of blazars allow us to put constraints on the acceleration mechanisms that fuel their powerful jets. By studying the multiwavelength polarimetric behaviour…

astro-ph.HE2025

IXPE Observations of the Blazar Mrk 501 in 2022: A Multiwavelength View

L. Lisalda, E. Gau, H. Krawczynski +157

The blazar Markarian 501 (Mrk 501) was observed on three occasions over a 4-month period between 2022 March and 2022 July with the Imaging X-ray Polarimetry Explorer (IXPE). In thi…

astro-ph.HE2025★ 9 cited

Variability of X-ray polarization of Cyg X-1

Vadim Kravtsov, Anastasiia Bocharova, Alexandra Veledina +31

We present the results of a three-year X-ray, optical, and radio polarimetric monitoring campaign of the prototypical black hole X-ray binary Cyg X-1, conducted from 2022 to 2024.…

astro-ph.HE2025★ 2 cited

The polarisation behaviour of OJ 287 viewed through radio, millimetre and optical observations between 2015 and 2017

J. Jormanainen, T. Hovatta, E. Lindfors +13

OJ 287 is a bright blazar with century-long observations, and one of the strongest candidates to host a supermassive black hole binary. Its polarisation behaviour between 2015 and…