The document discusses packages for astronomical data analysis including Astropy and CCDproc. It introduces the reducer package, a widget-based interface for CCD data reduction created by Matt Craig. The presentation demonstrates reducer's notebook interface and widget architecture for guiding novice researchers through data analysis tasks. Future goals include adding photometry and time series analysis widgets.

1. Packages (all on github, pip installable):
astropy/astropy (contributor)
core astronomical packages
astropy/ccdproc (co-lead dev)
CCD data reduction/calibration
mwcraig/reducer (lonely dev, more welcome)
friendly widget-based interface
Widgets and astropy:
doing research with undergrads
Matt Craig github: mwcraig email: mattwcraig@gmail.com

2. The Big Idea
Connect novice researchers to expert-developed
software so the novices can do science sooner.

3. Outline
• A little astronomy
• reducer notebook demo
• reducer widget architecture (pure python)
• make-your-own-widget demo

4. an uncalibrated image

5. an uncalibrated image
Trim this

6. an uncalibrated image
Thermal noise
(dark current)

7. an uncalibrated image
Non-uniform
illumination
(flat field)

8. Combine calibration images
• Take 10+ of each calibration image
• Combine to avoid adding noise to data
Note to self: notebook

9. pure python widgets

10. reducer tour

11. widget architecture
Every red box is a subclass
(directly or indirectly) of
reducer.gui.ToggleContainerWidget
Outermost box is a
reducer.gui.ToggleGoWidget

12. let’s build this now

13. let’s build this now
ToggleContainerWidget

14. let’s build this now
ToggleGoWidget

15. widget construction demo

16. Future
• photometry widget
• time series analysis (Lomb-Scargle)
• suggestions?

17. thank you…
• Jean Connolly (particularly helpful review
comments) and the other reviewers
• Students:
• Nathan Heidt, Laura Herzog, Nathan Walker, Erin
Aadland, Elias Holte, Laura Maixner, Michael
Meraz

18. Packages (all on github, pip installable):
https://github.com/astropy/astropy
conda install astropy
https://github.com/astropy/ccdproc
conda install -c astropy ccdproc
https://github.com/mwcraig/reducer
conda install -c mwcraig reducer
Matt Craig github: mwcraig email: mattwcraig@gmail.com