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.

Transcript

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
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)