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This document describes a study analyzing radial velocity (RV) measurements from LAMOST-II medium-resolution spectroscopic observations. The authors measure RVs for over 1.5 million spectra using template matching. They use RV standard stars to recalibrate measurements and evaluate accuracy, finding an accuracy of 0.0227 km/s compared to standards. Intrinsic precision is estimated from repeat observations, achieving 1.36, 1.08, and 0.91 km/s for spectra with signal-to-noise ratios of 10, 20, and 50, respect

Author

michele

Language

EN