We evaluate the performance of the first generation scientific CMOS （sC- MOS） camera used for astronomical observations. The sCMOS camera was attached to a 25 cm telescope at Xinglong Observatory, in order to estima...We evaluate the performance of the first generation scientific CMOS （sC- MOS） camera used for astronomical observations. The sCMOS camera was attached to a 25 cm telescope at Xinglong Observatory, in order to estimate its photometric capabilities. We further compared the capabilities of the sCMOS camera with that of full-frame and electron multiplying CCD cameras in laboratory tests and observations. The results indicate the sCMOS camera is capable of performing photometry of bright sources, especially when high spatial resolution or temporal resolution is desired.展开更多
We describe the design and construction of a new rapid 3-channel CCD photometer, dedicated to simultaneous multicolor photometric observations of rapidly variable objects. This photometer is equipped on the 1-meter te...We describe the design and construction of a new rapid 3-channel CCD photometer, dedicated to simultaneous multicolor photometric observations of rapidly variable objects. This photometer is equipped on the 1-meter telescope at the Xinglong Observatory. It allows simultaneous imaging within fields of view of 18.81′×18.8′, 18.2′×17.6′ and 9.2′×9.2′ in the Sloan Digital Sky Survey＇s g′, r′ and i′ bands, respectively. The results of its calibration and performance are reported.展开更多
文摘We evaluate the performance of the first generation scientific CMOS （sC- MOS） camera used for astronomical observations. The sCMOS camera was attached to a 25 cm telescope at Xinglong Observatory, in order to estimate its photometric capabilities. We further compared the capabilities of the sCMOS camera with that of full-frame and electron multiplying CCD cameras in laboratory tests and observations. The results indicate the sCMOS camera is capable of performing photometry of bright sources, especially when high spatial resolution or temporal resolution is desired.
文摘We describe the design and construction of a new rapid 3-channel CCD photometer, dedicated to simultaneous multicolor photometric observations of rapidly variable objects. This photometer is equipped on the 1-meter telescope at the Xinglong Observatory. It allows simultaneous imaging within fields of view of 18.81′×18.8′, 18.2′×17.6′ and 9.2′×9.2′ in the Sloan Digital Sky Survey＇s g′, r′ and i′ bands, respectively. The results of its calibration and performance are reported.
