173 citations · 440 across the 19 of their papers we have counts for
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High-precision broadband linear polarimetry of early-type binaries. V. The Binary System HD 165052 in Open Cluster NGC 6530
Yasir Abdul Qadir, Andrei V. Berdyugin, Vilppu Piirola +3
This study continues our investigation of early-type binaries using high-precision broad-band polarimetry, focusing on HD 165052, a massive O+O-type binary in the young cluster NGC…
High-precision broadband linear polarimetry of early-type binaries IV. Binary system of DH Cephei in the open cluster of NGC 7380
Yasir Abdul Qadir, Andrei V. Berdyugin, Vilppu Piirola +2
DH Cephei is a prominent O+O-type binary system in the NGC 7380 open cluster. Our high-precision multi-band polarimetry demonstrates synchronous linear polarization variations with…
High-precision broadband linear polarimetry of early-type binaries III. AO Cassiopeiae revisited
Yasir Abdul Qadir, Andrei V. Berdyugin, Vilppu Piirola +2
The fact that the O-type close binary star system AO~Cassiopeiae exhibits variable phase-locked linear polarization has been known since the mid-1970s. In this work, we re-observe…
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…