Spectroscopy

1
Spectroscopy

• Chapter 11 Bradt Notes
• ASTR 402
• Dr. H. Geller

2
Plots of Spectra

• Emission Line
• Broadened Emission Line

3
Plots of Spectra

• Absorption Lines
• Continuous Spectra

4
Plots of Spectra Jargon

• Energy specific intensity
• Number specific intensity
• Photon energy
• Energy spectral flux density
• Number spectral flux density
• Spectral reference band
• Frequencies and wavelengths
• Spectral bin widths

5
Transitions

• Bound-bound
• Free-bound
• Bound-free
• Free-free

6
Thermal Bremsstrahlung
7
Plasmas
8
Shock Wave
9
Synchrotron Radiation
10
Planck Radiation LawDifferent View from Textbook
11
Rayleigh Jeans Law
12
Cosmic Microwave Background
13
Stellar Spectra
14
Fraunhoffer Spectrum
15
Equivalent Width
16
FWHM