Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Qadir, Yasir"'
Autor:
Qadir, Yasir Abdul, Berdyugin, Andrei V., Piirola, Vilppu, Sakanoi, Takeshi, Kagitani, Masato, Berdyugina, S. V.
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 6530. Our aim was to monitor linear polarization variations and indep
Externí odkaz:
http://arxiv.org/abs/2410.20991
Autor:
Qadir, Yasir Abdul, Berdyugin, Andrei V., Piirola, Vilppu, Sakanoi, Takeshi, Kagitani, Masato
Publikováno v:
A&A 677, A75 (2023)
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 the orbital period. Using Stokes parameters, we derived the binary sy
Externí odkaz:
http://arxiv.org/abs/2305.17259
Autor:
Qadir, Yasir Abdul, Berdyugin, Andrei V., Piirola, Vilppu, Sakanoi, Takeshi, Kagitani, Masato
Publikováno v:
A&A 670, A176 (2023)
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 the polarization arising from this system more than 50 years later to
Externí odkaz:
http://arxiv.org/abs/2301.09750
Autor:
Kravtsov, Vadim, Berdyugin, Andrei V., Kosenkov, Ilia A., Veledina, Alexandra, Piirola, Vilppu, Qadir, Yasir Abdul, Berdyugina, Svetlana V., Sakanoi, Takeshi, Kagitani, Masato, Poutanen, Juri
Polarimetry provides an avenue for probing the geometry and physical mechanisms producing optical radiation in many astrophysical objects, including stellar binary systems. We present the results of multiwavelength (BVR) polarimetric studies of a sam
Externí odkaz:
http://arxiv.org/abs/2205.12121
Autor:
Ali, Sajid, Bhutta, Sadia Muzaffar, Ahmad, Sohail, Ansari, Aisha Naz, Ahmed, Afaq, Qadir, Yasir
Publikováno v:
Campbell Systematic Reviews; Jun2024, Vol. 20 Issue 2, p1-7, 7p
Autor:
Abdul Qadir, Yasir, Berdyugin, Andrei V., Piirola, Vilppu, Sakanoi, Takeshi, Kagitani, Masato
Publikováno v:
Astronomy & Astrophysics / Astronomie et Astrophysique; 8/26/2023, Vol. 677, p1-11, 11p
Autor:
Abdul Qadir, Yasir, Berdyugin, Andrei V., Piirola, Vilppu, Sakanoi, Takeshi, Kagitani, Masato
Publikováno v:
Astronomy & Astrophysics / Astronomie et Astrophysique; 2/23/2023, Vol. 670, p1-9, 9p