MODIFIED SHAO SPECTROGRAPH FOR SPECTRA WITH LOW RESOLUTION

N. Z. Ismailov; Исмаилов Н. З.; S. A. Alyshov; Алышов С. А.; Sh. K. Ismailova; Исмаилова Ш. К.; F. S. Huseynova; Гусейнова Ф. С.

doi:10.31857/S0004629923080054

MODIFIED SHAO SPECTROGRAPH FOR SPECTRA WITH LOW RESOLUTION

作者: Ismailov N.¹, Alyshov S.¹, Ismailova S.¹, Huseynova F.²
隶属关系:
1. Shamakhy Astrophysical Observatory named after N. Tusi, Yu. Mammadaliyev settlement
2. Batabat Astrophysical Observatory
期: 卷 100, 编号 10 (2023)
页面: 918-926
栏目: Articles
URL: https://journals.rcsi.science/0004-6299/article/view/147886
DOI: https://doi.org/10.31857/S0004629923080054
EDN: https://elibrary.ru/HLYOJW
ID: 147886

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详细

The paper describes an improved spectrograph of the Cassegrain focus of the 2 m ShAO reflector using a CCD camera. The classic Universal Astro Grid Spectrograph (UAGS) was adapted to use the Andor CCD camera to obtain spectra of objects with low brightness in the range of 3600–8000 Å. A spectrograph with a diffraction grating of 651 line/mm makes it possible to obtain the spectra of stars on the 2 m ShAO telescope up to 18 mag with a resolution of 1200, with a signal-to-noise ratio of about 50 for half an hour of exposure. The maximum allowable resolution is R = 3400 with binning 1 × 1. The complex can be used for observations of various types of transient objects, variable stars, and extragalactic objects.

关键词

astronomical instruments, spectrographs, CCD spectroscopy

参考

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