Night-sky brightness and extinction at Mt Shatdzhatmaz

被引:11
作者
Kornilov, V. [1 ]
Kornilov, M. [1 ]
Voziakova, O. [1 ]
Shatsky, N. [1 ]
Safonov, B. [1 ]
Gorbunov, I. [1 ]
Potanin, S. [1 ]
Cheryasov, D. [1 ]
Senik, V. [1 ]
机构
[1] Lomonosov Moscow State Univ, Sternberg Astron Inst, Univ Sky Pr T 13, Moscow 119234, Russia
关键词
atmospheric effects; site testing; techniques: photometric; MOUNT SHATDZHATMAZ; TURBULENCE; MASS; OBSERVATORIES; INSTRUMENTS; DIMM;
D O I
10.1093/mnras/stw1839
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The photometric sky quality of Mt Shatdzhatmaz, the site of the Sternberg Astronomical Institute Caucasian Observatory 2.5-m telescope, is characterized here by the statistics of the night-time sky brightness and extinction. The data were obtained as a by-product of atmospheric optical turbulence measurementswith the MASS (Multi-Aperture Scintillation Sensor) device conducted in 2007-2013. The factors biasing night-sky brightness measurements are considered and a technique to reduce their impact on the statistics is proposed. The single-band photometric estimations provided by MASS are easy to transform to the standard photometric bands. The median moonless night-sky brightness is 22.1, 21.1, 20.3 and 19.0 mag arcsec-2 for the B, V, R and I spectral bands, respectively. The median extinction coefficients for the same photometric bands are 0.28, 0.17, 0.13 and 0.09 mag. The best atmospheric transparency is observed in winter.
引用
收藏
页码:4464 / 4472
页数:9
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