КФУ. Карточка публикации. SRGe J214919.3+673634-a Candidate for AM Her Variables Discovered by the eROSITA Telescope onboard the Spectrum-Roentgen-Gamma Orbital Observatory

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SRGE J214919.3+673634-A CANDIDATE FOR AM HER VARIABLES DISCOVERED BY THE EROSITA TELESCOPE ONBOARD THE SPECTRUM-ROENTGEN-GAMMA ORBITAL OBSERVATORY

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2022

Язык

английский

Авторы, сотрудники КФУ

Бикмаев Ильфан Фяритович, автор

Николаева Евгения Александровна, автор

Шиманский Владислав Владимирович, автор

Библиографическое описание на языке оригинала

Bikmaev I. F., Kolbin A. I., Shimansky V. V., SRGe J214919.3+673634-a Candidate for AM Her Variables Discovered by the eROSITA Telescope onboard the Spectrum-Roentgen-Gamma Orbital Observatory//ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS. - 2022. - Vol.48, Is.9. - P.530-541.

Аннотация

The paper presents the results of the optical identification, classification, as well as analysis of photometric and spectral observations of the X-ray transient SRGe2149+6736 detected by the eROSITA telescope of the orbital observatory SRG in the summer of 2021 during the 4th sky survey. Photometric observations of the optical companion of SRGe2149+6736 were carried out on the 6m telescope BTA SAO RAS, 1.5m Russian-Turkish telescope RTT-150 and 2.5m telescope CMO of Moscow State University. Together with ZTF data they showed that the source is a cataclysmic variable with an orbital period of P = 85 ? 0.4 min and demonstrate a long-term variability in brightness from 23.5 mag (low state) to 20 mag (high state). The high-state light curves are consistent with a model of accreting magnetic white dwarf and suggest that SRGe2149+6736 belongs to AM Her type variables. The optical spectra obtained in the low state are consistent with a spectral energy distribution of a white dwarf with a temperature of ∼ 24000 K.

Ключевые слова

Stars: novae, cataclysmic variables ? Individual: SRGe2149+6736 ? Methods: photometry, spectroscopy

Название журнала

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS

URL

https://link.springer.com/article/10.1134/S1063773722090018

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https://repository.kpfu.ru/?p_id=277974

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Бикмаев Ильфан Фяритович	ru_RU
dc.contributor.author	Николаева Евгения Александровна	ru_RU
dc.contributor.author	Шиманский Владислав Владимирович	ru_RU
dc.date.accessioned	2022-01-01T00:00:00Z	ru_RU
dc.date.available	2022-01-01T00:00:00Z	ru_RU
dc.date.issued	2022	ru_RU
dc.identifier.citation	Bikmaev I. F., Kolbin A. I., Shimansky V. V., SRGe J214919.3+673634-a Candidate for AM Her Variables Discovered by the eROSITA Telescope onboard the Spectrum-Roentgen-Gamma Orbital Observatory//ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS. - 2022. - Vol.48, Is.9. - P.530-541.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=277974	ru_RU
dc.description.abstract	ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS	ru_RU
dc.description.abstract	The paper presents the results of the optical identification, classification, as well as analysis of photometric and spectral observations of the X-ray transient SRGe2149+6736 detected by the eROSITA telescope of the orbital observatory SRG in the summer of 2021 during the 4th sky survey. Photometric observations of the optical companion of SRGe2149+6736 were carried out on the 6m telescope BTA SAO RAS, 1.5m Russian-Turkish telescope RTT-150 and 2.5m telescope CMO of Moscow State University. Together with ZTF data they showed that the source is a cataclysmic variable with an orbital period of P = 85 ? 0.4 min and demonstrate a long-term variability in brightness from 23.5 mag (low state) to 20 mag (high state). The high-state light curves are consistent with a model of accreting magnetic white dwarf and suggest that SRGe2149+6736 belongs to AM Her type variables. The optical spectra obtained in the low state are consistent with a spectral energy distribution of a white dwarf with a temperature of ∼ 24000 K.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Stars: novae	ru_RU
dc.subject	cataclysmic variables ? Individual: SRGe2149+6736 ? Methods: photometry	ru_RU
dc.subject	spectroscopy	ru_RU
dc.title	SRGe J214919.3+673634-a Candidate for AM Her Variables Discovered by the eROSITA Telescope onboard the Spectrum-Roentgen-Gamma Orbital Observatory	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU