Enviar artigo por via de e-mail Search for and study of photometric variability in magnetic white dwarfs
- Autores: Valeev A.F.1,2, Antonyuk K.A.3,1, Pit N.V.3, Moskvitin A.S.1,2, Grauzhanina A.O.1, Gadelshin D.R.1, Kolesnikov S.V.3,4, Zhuzhulina E.A.5, Burlakova T.E.1, Galazutdinov G.A.6,7,1, Gutaev A.G.2, Zhuchkov R.Y.2,7, Ikhsanova A.I.2, Zhukov D.G.2, Joshi A.8, Pandey J.C.8, Kholtygin A.F.9, Valyavin G.G.1
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Afiliações:
- Special Astrophysical Observatory
- Kazan (Volga Region) Federal University
- Crimean Astrophysical Observatory
- Astronomical Observatory
- V. I. Vernadsky Crimean Federal University
- Instituto de Astronomia
- Main (Pulkovo) Astronomical Observatory
- Aryabhatta Research Institute of Observational Sciences
- Sobolev Astronomical Institute
- Edição: Volume 72, Nº 1 (2017)
- Páginas: 44-50
- Seção: Article
- URL: https://journals.rcsi.science/1990-3413/article/view/212360
- DOI: https://doi.org/10.1134/S1990341317030051
- ID: 212360
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Resumo
We report the results of photometric observations of a number of magnetic white dwarfs in order to search for photometric variability in these stars. These V-band observations revealed significant variability in the classical highly magnetized white dwarf GRW+70◦8247 with a likely period from several days to several dozen days and a half-amplitude of about 0.m 04. Our observations also revealed the variability of the well-known white dwarf GD229. The half amplitude of its photometric variability is equal to about 0.m 005, and the likely period of this degenerate star lies in the 10–20 day interval. This variability is most likely due to the rotation of the stars considered.We also discuss the peculiarities of the photometric variability in a number of other white dwarfs. We present the updated “magnetic field–rotation period” diagram for the white dwarfs.
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Sobre autores
A. Valeev
Special Astrophysical Observatory; Kazan (Volga Region) Federal University
Autor responsável pela correspondência
Email: azamat@sao.ru
Rússia, Nizhnii Arkhyz, 369167; Kazan, 420008
K. Antonyuk
Crimean Astrophysical Observatory; Special Astrophysical Observatory
Email: azamat@sao.ru
Rússia, Nauchnyi, Crimea, 298409; Nizhnii Arkhyz, 369167
N. Pit
Crimean Astrophysical Observatory
Email: azamat@sao.ru
Rússia, Nauchnyi, Crimea, 298409
A. Moskvitin
Special Astrophysical Observatory; Kazan (Volga Region) Federal University
Email: azamat@sao.ru
Rússia, Nizhnii Arkhyz, 369167; Kazan, 420008
A. Grauzhanina
Special Astrophysical Observatory
Email: azamat@sao.ru
Rússia, Nizhnii Arkhyz, 369167
D. Gadelshin
Special Astrophysical Observatory
Email: azamat@sao.ru
Rússia, Nizhnii Arkhyz, 369167
S. Kolesnikov
Crimean Astrophysical Observatory; Astronomical Observatory
Email: azamat@sao.ru
Rússia, Nauchnyi, Crimea, 298409; Odessa, 65014
E. Zhuzhulina
V. I. Vernadsky Crimean Federal University
Email: azamat@sao.ru
Rússia, Simferopol, Crimea, 295007
T. Burlakova
Special Astrophysical Observatory
Email: azamat@sao.ru
Rússia, Nizhnii Arkhyz, 369167
G. Galazutdinov
Instituto de Astronomia; Main (Pulkovo) Astronomical Observatory; Special Astrophysical Observatory
Email: azamat@sao.ru
Chile, Antofagasta; St. Petersburg, 196140; Nizhnii Arkhyz, 369167
A. Gutaev
Kazan (Volga Region) Federal University
Email: azamat@sao.ru
Rússia, Kazan, 420008
R. Zhuchkov
Kazan (Volga Region) Federal University; Main (Pulkovo) Astronomical Observatory
Email: azamat@sao.ru
Rússia, Kazan, 420008; St. Petersburg, 196140
A. Ikhsanova
Kazan (Volga Region) Federal University
Email: azamat@sao.ru
Rússia, Kazan, 420008
D. Zhukov
Kazan (Volga Region) Federal University
Email: azamat@sao.ru
Rússia, Kazan, 420008
Arti Joshi
Aryabhatta Research Institute of Observational Sciences
Email: azamat@sao.ru
Índia, Nainital, 263001
J. Pandey
Aryabhatta Research Institute of Observational Sciences
Email: azamat@sao.ru
Índia, Nainital, 263001
A. Kholtygin
Sobolev Astronomical Institute
Email: azamat@sao.ru
Rússia, St. Petersburg, 198504
G. Valyavin
Special Astrophysical Observatory
Email: azamat@sao.ru
Rússia, Nizhnii Arkhyz, 369167
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