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UID:pretalx-adass2026-NWTBRJ@pretalx.adass.org
DTSTART;TZID=AWST:20261105T111500
DTEND;TZID=AWST:20261105T113000
DESCRIPTION:Spectroscopic data require accurate wavelength solutions to ful
 ly unlock their scientific potential. While there are many tools for fitti
 ng wavelength solutions\, there are no tools tailored specifically for sol
 ar data. In this talk we discuss the development of a new Python package c
 alled `solar-wavelength-calibration`\, maintained by the Daniel K. Inouye 
 Solar Telescope's Data Center and designed to accurately fit wavelength so
 lutions to spectroscopic observations of the Sun.\n\nThe novel features of
  this package include the use of a solar spectral atlas as opposed to line
  lists (no need for arc-lamp data!) and the explicit treatment of telluric
  lines with varying intensity and an optional Doppler offset. Additionally
 \, the parametrization of the wavelength solution does not use polynomials
 \, as is common in other tools\, but rather relies on a physically motivat
 ed model\, with fit parameters corresponding to the optical  characteristi
 cs of the spectrograph. As a result\, the final fit is fully compliant wit
 h the FITS parametrization of non-linear wavelength axes for grating data 
 (AWAV-GRA)\, eliminating the need to interpolate data onto a linear grid.\
 n\n`solar-wavelength-calibration` is available on pypi and published in JO
 SS. This talk will give a brief overview of how this package is used in th
 e wild\, but will focus mostly on lessons learned and the process of turni
 ng a collection of functions that work on specific data into a general pur
 pose tool for astronomers everywhere.
DTSTAMP:20261001T101612Z
LOCATION:Banquet Hall
SUMMARY:solar-wavelength-calibration: Designing a new tool for computing wa
 velength solutions of solar spectra - Arthur Eigenbrot
URL:https://pretalx.adass.org/adass2026/talk/NWTBRJ/
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