Modified ShAO Spectrograph for Low-Resolution Spectra

被引：0
作者：
Ismailov, N. Z. [1 ]
Alyshov, S. A. [1 ]
Ismailova, Sh. K. [1 ]
Huseynova, F. S. [2 ]
机构：
[1] Shamakhy Astrophys Observ, Shamakhy, Azerbaijan
[2] Batabat Astrophys Observ, Nakhichevan, Azerbaijan
来源：
ASTRONOMY REPORTS | 2023年 / 67卷 / 10期
关键词：
astronomical instruments; spectrographs; CCD spectroscopy; BALMER; LINES;
D O I：
10.1134/S106377292308005X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The paper describes an improved spectrograph of the Cassegrain focus of the 2-meter 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 angstrom. A spectrograph with a diffraction grating of 651 lines/mm makes it possible to obtain the spectra of stars on the 2-m ShAO telescope up to 18 mag with the resolution R = 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 x 1. The complex can be used for observations of various types of transient objects, variable stars, and extragalactic objects.
引用
收藏
页码：1056 / 1063
页数：8
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