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Data-driven Modeling of Telluric Features and Stellar Variability with StellarSpectraObservationFitting.jl

  • Authors: Christian Gilbertson, Eric B. Ford, Samuel Halverson, Evan Fitzmaurice, Cullen H. Blake, Gumundur Stefánsson, Suvrath Mahadevan, Jason T. Wright, Jacob K. Luhn, Joe P. Ninan, Paul Robertson, Arpita Roy, Christian Schwab, Ryan C. Terrien

Christian Gilbertson et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 15.

SSOF model of order 144 for HD 3561 which identifies Fe I and Ca I variation. Left: the telluric and stellar templates are shown above in gray and blue while the stellar feature vector is shown below (purple). This vector is dominated by variations in deep lines. Right: the stellar feature scores as a function of time. The residuals between v⋆,144 and ﹩{v}_{\star }^{{\mathtt{SSOF}}}﹩ are shown in Figure 16.

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