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arXiv · 1212.6269

IRS-TR 12003: Constructing Low-Resolution Truth Spectra of the Standard Stars HR 6348 and HD 173511

G. C. Sloan·D. Ludovici
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Abstract

This report describes the generation of fully calibrated spectra of the K giants HR 6348 and HD 173511 from data obtained with the low-resolution modules of the Infrared Spectrograph (IRS), with an emphasis on the spectra from the Long-Low (LL) module. The spectra were calibrated using Kurucz models and IRS observations of the A dwarfs alpha Lac and delta UMi. The calibration process required mitigation for fringing in the first-order LL spectrum and a faint red excess in alpha Lac which may arise from a low-contrast debris disk. The final calibrated spectrum of HR 6348 has a spectroscopic fidelity of 0.5% or better below 29 um, with an uncertainty increasing to ~1% at 33-37 um. The final calibrated spectrum of HD 173511 has a spectroscopic fidelity of ~0.5% at all wavelengths below 35.8 um.

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G. C. Sloan, D. Ludovici. 2012-12-26. IRS-TR 12003: Constructing Low-Resolution Truth Spectra of the Standard Stars HR 6348 and HD 173511. https://arxiv.org/abs/1212.6269

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