Absorption Lines and Curve of Growth
- more observed absorption line spectra
- interstellar medium lines of potassium and lithium towards zeta Ophiuchi (Kawanomoto+ 2009), and in the SMC (Howk+ 2012)
- online catalog of transitions
- contributions to linewidths
- profile functions
- curve of growth
- hydrogen lines and the Lyman limit
Awesome Example: Quasar Absorption Line Systems
- quasars: in active galaxies, artist's conception
- composite quasar UV/optical spectrum from SDSS: Vanden Berk+ (2001)
- Lyman-alpha forest: cartoon and spectrum
- a damped Lyman-alpha system
The Lyman Limit
"Metal" Lines
- physics: resonance lines
- astrophysics: atmospheric opacity
- awesome examples:
- in the solar spectrum
- in quasar spectra
Hydrogen Spectroscopy Redux: the Balmer Jump
- Balmer series
- stellar spectra: here and here; note the Balmer jump
