Calibration Sources for the Near-IR Arm of X-shooter

Details Calibration Sources for the Near-IR Arm of X-shooter Calibration Sources for the Near-IR Arm of X-shooter

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007msngr.129...21k&link_type=abstract

The Messenger, vol. 129, p. 21-23

Physics

2

Scientific paper

We have studied the properties of wavelength calibration sources for the near- IR arm of X-shooter. In a novel approach we are combining laboratory measurements from a Fourier Transform Spectrometer (FTS), and literature data, with simulated data derived from a physi- cal model of X-shooter. The sources studied are pen ray lamps filled with the noble gases Ne, Ar, Kr, and Xe and Th-Ar hollow cathode lamps. As a product we provide a quantitative order by order analysis of the expected properties of the calibration lamps during X-shooter operations. Based on these we give recommendations for the selection of the best combination of lamps. The combination of laboratory measurements and instrument modeling provides a powerful tool for future instrument development.

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