Wavelength calibration sources for the near infrared arm of X-shooter

Details Wavelength calibration sources for the near infrared arm of X-shooter Wavelength calibration sources for the near infrared arm of X-shooter

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7014e.129k&link_type=abstract

Ground-based and Airborne Instrumentation for Astronomy II. Edited by McLean, Ian S.; Casali, Mark M. Proceedings of the SPI

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We have studied the properties of wavelength calibration sources for the near-IR (NIR: 1000-2500 nm) arm of X-shooter. In a novel approach we are combining laboratory measurements from a Fourier Transform Spectrometer (FTS) and literature data with corresponding simulated data derived from a physical 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. The analysis accounts for blending of lines and makes realistic assumptions about the dynamic range available in a typical wavelength calibration exposure. Based on our study we recommend the use of Ne, Kr, and Ar as the best three lamp combination for X-shooter calibration. A detailed comparison between the predicted and actual performance of the calibration system has been started as part of the X-shooter testing and validation phase and first results are very promising. To our knowledge this is the first time that such a detailed and quantitative analysis of a calibration system has been done prior to the operation of the instrument. The combination of laboratory measurements and instrument modeling provides a powerful tool for future instrument development.

Affiliated with

Also associated with

No associations

Rating

Wavelength calibration sources for the near infrared arm of X-shooter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Wavelength calibration sources for the near infrared arm of X-shooter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavelength calibration sources for the near infrared arm of X-shooter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1059652