PAH Emission Features · Aromatic Infrared Bands
unseel.com · cosmic soot · stochastic heating · 3.3–11.3 μm
Peak T 20 K
Charge neutral
Phase
UV photon (6–13 eV)
Carbon skeleton (C–C)
Edge hydrogen (C–H)
IR emission band
Unseel.com · PAH Emission Features: The Aromatic Infrared Bands of Cosmic Soot