dust_extinction python package

dust_extinction python package

Briefly presents the astropy affiliated dust_extinction python package. Package currently provides ultraviolet through near-infrared models of extinction curves for use in forward modeling and/or correcting for the effects of interstellar extinction on observations of stars.


Karl Gordon

July 31, 2019


  1. dust_extinction Karl D. Gordon STScI, Baltimore, MD Python in Astronomy

    Lightning Talk 31 July 2019 ISM@ST member kgordon@stsci.edu @karllark2000 karllark@github
  2. Motivations • Provide up-to-date dust extinction models – Forward modeling

    and correcting observations • So I can learn open development skills • Contribute to the pyastro community • Have all the models available for my papers • Package – for those that like dust – for those that just want it to go away
  3. None
  4. None
  5. None
  6. None
  7. None
  8. None
  9. None
  10. None
  11. None
  12. None
  13. Astropy Affiliated Package

  14. Strengths • Maintained mainly by dust extinction experts – New

    models added as they are created • Provides choice of models • Documentation – Including recommendations
  15. Future/Needs • Needs review by general users – Maintained by

    experts • Add more models – Currently covers UV – NIR – Add dust grain models (X-ray to mm) – Add MIR models • What else needed? (issues very welcome)
  16. Thanks

  17. Extinction vs Attenuation Github: karllark/dust_attenuation Github: karllark/dust_extinction

  18. R(V) Dependence - F20 Model Fitzpatrick, Massa, Gordon, et al.

    2019, almost submitted
  19. Comparison to Previous (all from photometry)