| Форма представления | Статьи в зарубежных журналах и сборниках |
| Год публикации | 2023 |
| Язык | английский |
|
Бикмаев Ильфан Фяритович, автор
Колбин Александр Иванович, автор
|
| Библиографическое описание на языке оригинала |
Kolbin A. I., Borisov NV, Burenkov AN, Optical Study of the Polar BM CrB in a Low State//ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS. - 2023. - Vol.49, Is.3. - P.129-140. |
| Аннотация |
We have performed spectroscopic and photometric studies of the poorly explored polar BM CrB. Based on ZTF survey data, we have revealed three brightness states of the polar and evidence of the transition from one-pole to two-pole accretion as the average brightness of the system increases. We show that there are a change in the longitude of the main accretion spot (by ≈17∘
) and an increase in its extent (by ≈10∘
) when passing from the low state to the high one. Zeeman H α
absorptions formed in a magnetic field of strength B=15.5?1
MG are present in the spectra. The cool halo extending from the accretion spot to ≈1/4
of the white dwarf radius can be the source of these absorptions. Our modeling of the behavior of the H α
emission line shows that the main source of the emission is the segment of the accretion stream near the Lagrange point L1 |
| Ключевые слова |
novae; cataclysmic variables; BM CrB; photometry; spectroscopy |
| Название журнала |
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
|
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=286462 |
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Бикмаев Ильфан Фяритович |
ru_RU |
| dc.contributor.author |
Колбин Александр Иванович |
ru_RU |
| dc.date.accessioned |
2023-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2023-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2023 |
ru_RU |
| dc.identifier.citation |
Kolbin A. I., Borisov NV, Burenkov AN, Optical Study of the Polar BM CrB in a Low State//ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS. - 2023. - Vol.49, Is.3. - P.129-140. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=286462 |
ru_RU |
| dc.description.abstract |
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS |
ru_RU |
| dc.description.abstract |
We have performed spectroscopic and photometric studies of the poorly explored polar BM CrB. Based on ZTF survey data, we have revealed three brightness states of the polar and evidence of the transition from one-pole to two-pole accretion as the average brightness of the system increases. We show that there are a change in the longitude of the main accretion spot (by ≈17∘
) and an increase in its extent (by ≈10∘
) when passing from the low state to the high one. Zeeman H α
absorptions formed in a magnetic field of strength B=15.5?1
MG are present in the spectra. The cool halo extending from the accretion spot to ≈1/4
of the white dwarf radius can be the source of these absorptions. Our modeling of the behavior of the H α
emission line shows that the main source of the emission is the segment of the accretion stream near the Lagrange point L1 |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
|
ru_RU |
| dc.title |
Optical Study of the Polar BM CrB in a Low State |
ru_RU |
| dc.type |
Статьи в зарубежных журналах и сборниках |
ru_RU |
|
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