Figure 2 from Excalibur: A Nonparametric, Hierarchical Wavelength Calibration Method for a Precision Spectrograph

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Excalibur: A Nonparametric, Hierarchical Wavelength Calibration Method for a Precision Spectrograph

Authors: Lily L. Zhao, David W. Hogg, Megan Bedell, and Debra A. Fischer

2021 The Astronomical Journal 161 80.

Provider: AAS Journals

Caption: Figure 2.

Difference in predicted and theoretical wavelengths for the wavelength calibration tests described in Section 4. The per-line rms as defined in Equation (5) is given in the top-right corner in each method’s corresponding color. Incorporating denoising returns the smallest spread in residuals.

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