Abstract
We present a status report on a project with the aim to enhance the wavelength calibration of ISAAC’s long wavelength spectroscopic mode. We measure telluric standard stars with high signal/noise and use the comparison with theoretical spectra of the telluric lines for the wavelength calibration. We show that calibrations done with arc-lines only can be wrong by up to 0.2 μm. The new atlas of telluric lines allows a spectral calibration with a precision of 0.003 μm.
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References
C. Lidman, J.G. Cuby, ISAAC: Atlas of Xenon and Argon lines, Issue 1.0, 28 July 2000 http://www.eso.org/instruments/isaac/tools/atlas/index.html
HITRAN database at http://cfa-www.harvard.edu/HITRAN/
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© 2008 Springer-Verlag Berlin Heidelberg
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Papadaki, C., Schmidtobreick, L., Hummel, W., Smette, A. (2008). ISAAC LW Telluric Line Atlas. In: Kaufer, A., Kerber, F. (eds) The 2007 ESO Instrument Calibration Workshop. ESO Astrophysics Symposia European Southern Observatory. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-76963-7_20
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DOI: https://doi.org/10.1007/978-3-540-76963-7_20
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-76962-0
Online ISBN: 978-3-540-76963-7
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