Spectrograph for faint objects: The device and the main results of observations

Denissyuk, E. K.

doi:10.1080/1055679031000084795a

Cited by 7 publications

(3 citation statements)

References 3 publications

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“…Observations were carried out in the 11.2 m Cassegrain focus of the telescope AZT-8 (diameter of 0.7 m) with the diffraction spectrograph made in FAPHI [3]. CCD camera SBIG ST-8 (1530x1020, 9μ) was used as a receiver.…”

Section: Observations and Processingmentioning

confidence: 99%

Rotating Curve of the Galaxy NGC 1068

Denissyuk¹,

Валиуллин²

2019

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN

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Б а с р е д а к т о р ы ф.-м.ғ.д., проф., ҚР ҰҒА академигі Ғ.М. Мұтанов Р е д а к ц и я а л қ а с ы: Жұмаділдаев А.С. проф., академик (Қазақстан) Кальменов Т.Ш. проф., академик (Қазақстан) Жантаев Ж.Ш. проф., корр.-мүшесі (Қазақстан) Өмірбаев У.У. проф. корр.-мүшесі (Қазақстан) Жүсіпов М.А. проф. (Қазақстан) Жұмабаев Д.С. проф. (Қазақстан) Асанова А.Т. проф. (Қазақстан) Бошкаев К.А. PhD докторы (Қазақстан) Сұраған Д. корр.-мүшесі (Қазақстан) Quevedo Hernando проф. (Мексика), Джунушалиев В.Д. проф. (Қырғыстан) Вишневский И.Н. проф., академик (Украина) Ковалев А.М. проф., академик (Украина) Михалевич А.А. проф., академик (Белорус) Пашаев А. проф., академик (Əзірбайжан) Такибаев Н.Ж. проф., академик (Қазақстан), бас ред. орынбасары Тигиняну И. проф., академик (Молдова) «ҚР ҰҒА Хабарлары. Физика-математикалық сериясы».

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Section: Observations and Processingmentioning

confidence: 99%

Rotating Curve of the Galaxy NGC 1068

Denissyuk¹,

Валиуллин²

2019

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN

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“…This device is fully described by Denissyuk (2003). The threestage image tube was used as a detector until 1998, and a Send offprint requests to: L. Kondratyeva, e-mail: kon@.afi.south-capital.kz ST7 CCD since 1999.…”

Section: Observationsmentioning

confidence: 99%

Planetary nebula K1-9

Kondratyeva

Denissyuk

2003

A&A

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“…In 1968 a new diffraction spectrograph of an original design was developed in FAI. The threecascade image-tube UM-92, probably one of the most effective image amplifiers in the world, was used as a receiver Denissyuk (2003). The spectrograph was mounted to the telescope AZT-8 (D = 0.7 m) and proofs the high efficiency for observations of the faint emission objects.…”

Section: Introductionmentioning

confidence: 99%

Studies of Seyfert galaxies in Fesenkov Astrophysical Institute

Denissyuk

Валиуллин

Omarov

et al. 2020

ComBAO

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This article provides an overview of the main research results of a large group of Seyfert galaxies, carried out at Fesenkov Astrophysical Institute (FAI) over the past 50 years. Spectral observations have been performed since 1970. At an early stage, a three cascade image-tube (UM-92) was used as a radiation receiver. In the 1990s, the equipment was modernized, and at present, the modern CCD cameras are used as radiation detectors at the output of spectrographs. The results of observations were used to determine the absolute fluxes of the emission lines and to study their profiles. Several additional emission features were detected on the wings of the broad emission lines Hα in the spectra of two galaxies NGC 4151 and Ark 120. These features are emitted by compact ionized objects, rotating in the field of Central Body (CB). Photometric observations of Seyfert galaxies have been carried out at FAI since 2010. Light curves of more than 20 Seyfert galaxies have been obtained. In particular, the light curves of the galaxy NGC 4151, obtained last years, shows that an active stage of its nucleus took place in 2015-2016, when the brightness increased by 0m.5 in the V filter, and by almost 2m in the R filter. Then, in 2018-2019 there was a rather sharp decline of brightness, and B V R magnitudes returned to their minimal values.

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Spectrograph for faint objects: The device and the main results of observations

Cited by 7 publications

References 3 publications

Rotating Curve of the Galaxy NGC 1068

Rotating Curve of the Galaxy NGC 1068

Planetary nebula K1-9

Studies of Seyfert galaxies in Fesenkov Astrophysical Institute

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