FOUR-CHANNEL WIDE-FIELD CLUSTER FOR SURVEY TASKS AND SYNCHRONOUS MULTICOLOR PHOTOMETRY
Аннотация и ключевые слова
Аннотация (русский):
A new wide-field optical instrument of the Institute of Astronomy of the Russian Academy of Sciences (INASAN) is described. It has been implemented under the bilateral Russia--Uzbekistan collaboration in astronomy in 2023–2025. The instrument comprises four identical wide-field 28-cm aperture telescopes on a common mount designed for all-sky surveys and photometry. For a single exposure, the cluster takes an image of a 7 square degree field in four photometric bands simultaneously with a 1.26 $''$/px scale. The technical and optoelectronic characteristics of the cluster are presented and discussed. The plan is to install the cluster at the Maidanak Astronomical Observatory, which has a large amount of clear night time (about 2500 hours per year) with a median seeing of $0\,.\!\!^{\prime\prime}7$. The INASAN cluster will become one of the most informative positional photometric multiband observing systems in Russia. It will also be useful in a global network of multiband wide-field optical instruments including the BRICS astronomical network.

Ключевые слова:
surveys; telescopes; methods: observational; techniques: photometric; instrumentation: photometers; stars: variables: general
Список литературы

1. Ibrahimov M.A., Nalivkin M.A., Shugarov A.S., et al., 2023, INASAN Science Reports, 8, 4, p. 195

2. Licandro J., Tonry J., Alarcon M.R., et al., 2023, arXiv:2302.07954

3. Watson A.M., Lee W.H., Troja E., et al., 2016, Proc. of SPIE, 9910, id. 99100G

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