376 citations · 5.6k across the 105 of their papers we have counts for
6 papers · 1 filter
DIPol-UF: simultaneous three-color () polarimeter with EM CCDs
Vilppu Piirola, Ilia A. Kosenkov, Andrei V. Berdyugin +2
We describe a new instrument capable of high precision () polarimetric observations simultaneously in three passbands (). The instrument utilizes electron-multiplied…
Orbital variability of the optical linear polarization of the -ray binary LS I +61 303 and new constraints on the orbital parameters
Vadim Kravtsov, Andrei V. Berdyugin, Vilppu Piirola +8
We studied the variability of the linear polarization and brightness of the -ray binary LS I +61 303. High-precision BVR photopolarimetric observations were carried out with the…
Testing two-component models on very-high-energy gamma-ray emitting BL Lac objects
MAGIC Collaboration, V. A. Acciari, S. Ansoldi +201
Context. It has become evident that one-zone synchrotron self-Compton models are not always adequate for very-high-energy (VHE) gamma-ray emitting blazars. While two-component mode…
Disc and wind in black hole X-ray binary MAXIJ1820+070 observed through polarized light during its 2018 outburst
Ilia A. Kosenkov, Alexandra Veledina, Andrei V. Berdyugin +6
We describe the first complete polarimetric dataset of the entire outburst of a low-mass black hole X-ray binary system and discuss the constraints for geometry and radiative mecha…
High-precision polarimetry of nearby stars (d<50 pc) Mapping the interstellar dust and magnetic field inside the Local Bubble
V. Piirola, A. Berdyugin, P. C. Frisch +6
We investigate the linear polarization produced by interstellar dust aligned by the magnetic field in the solar neighborhood (d< 50 pc). We also look for intrinsic effects from cir…
Unravelling the complex behavior of Mrk 421 with simultaneous X-ray and VHE observations during an extreme flaring activity in April 2013
MAGIC collaboration, V. A. Acciari, S. Ansoldi +237
We report on a multi-band variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 2013 April 19. The study…