Five nights of intensiveR- andV-band photometry of QSO 0957+561A,B

J. E. Ovaldsen, J. Teuber,R. Stabell,A. K. D. Evans

Monthly Notices of the Royal Astronomical Society（2003）

引用 8|浏览12

暂无评分

摘要

We present R- and V-band photometry of the gravitational lens system QSO 0957+561 from five nights (one in 2000 January and four in 2001 March, corresponding to the approximate time delay for the system) of uninterrupted monitoring at the Nordic Optical Telescope. In the photometry scheme we have stressed careful magnitude calibration as well as corrections for the lens galaxy contamination and th...

查看译文

关键词

gravitational lensing,methods: data analysis,techniques: photometric,quasars: individual: QSO 0957+561,cosmology: observations

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要