The Simultaneous Three-channel Multicolor CCD Photometric System of the 1.2 m Telescope at Jilin Astronomical Observatory*Supported by the National Natural Science Foundation of China. (1st May 2022)

• Record Type: Journal Article
• Authors: Niu, Bing-Li; Liu, Cheng-Zhi; Li, Zhen-Wei; Kang, Zhe; Lv, You
• Is Part Of: Research in astronomy and astrophysics. Volume 22:Number 5(2022)
• Publication Date: 2022-05-01
• Subjects: astronomical instrumentation -- photometer -- photoelectric photometry; Astronomy -- Periodicals; Astrophysics -- Periodicals; 520.5
• DOI: 10.1088/1674-4527/ac5afc
• Languages: English
• ISSNs: 1674-4527

Abstract

Abstract: We will introduce the construction and design of a new simultaneous three-channel multicolor CCD photometer. This photometer has been mounted on the 1.2 m telescope at Jilin Astronomical Observatory, and is applied to study space debris, gamma-ray burst afterglows, asteroids and other rapidly variable objects. As one of the ground follow-up telescopes of the Chinese-French Space-based multi-band astronomical Variable Objects Monitor (SVOM) mission, it appears very essential to evaluate the performance of the photometry system of this photometer, which can achieve simultaneous imaging within a field of view of 21.′5 × 21.′5, 21.′5 × 21.′5 and 21.′3 × 21.′3 in the Sloan Digital Sky Survey (SDSS) g ′, r ′, i ′ bands, respectively. Photometric calibrations were carried out by using plenty of SDSS standard stars, and the relationship between the photometric system and the Johnson-Bessel filter system was also studied. The results of the performance evaluation from observing open cluster M67 are presented.