Peripherally Hydrogenated Neutral Polycyclic Aromatic Hydrocarbons as Carriers of the 3 Micron Interstellar Infrared Emission Complex: Results from Single‐Photon Infrared Emission Spectroscopy

2000 ◽  
Vol 545 (2) ◽  
pp. 854-860 ◽  
Author(s):  
D. R. Wagner ◽  
HS. Kim ◽  
R. J. Saykally
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Emission Spectroscopy ◽  
Single Photon ◽  
Infrared Emission ◽  
Infrared Emission Spectroscopy ◽  
Polycyclic Aromatic

scholarly journals The Infrared Emission Features and Polycyclic Aromatic Hydrocarbons

1989 ◽  
Vol 135 ◽  
pp. 129-140
Author(s):  
L. J. Allamandola
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Related Species ◽  
Infrared Emission ◽  
Polycyclic Aromatic

The infrared evidence which supports the PAH hypothesis is briefly summarized. Rather than presenting a general discussion of these assignments, this paper focuses on the spectroscopic issues raised by recent observational and experimental developments. These issues include: the position and profile of the “1310” cm−1(“7.7” μm) feature, the position and intensities of the bands in the 910-710 cm−1(11-14 μm) region, the newly detected 1900 cm−1(5.3 μm) band, and the spatial and spectral variations in the 3000 cm−1(3 μm) region as well as in the 12 and 25 μm IRAS bands. It is concluded that the infrared evidence for interstellar PAHs and PAH-related species is compelling.

scholarly journals Infrared and optical spectroscopy of astrophysical molecules

1997 ◽  
Vol 178 ◽  
pp. 281-286
Author(s):  
Peter F. Bernath
Keyword(s):  
Small Molecules ◽  
Aromatic Hydrocarbons ◽  
Emission Spectroscopy ◽  
Far Infrared ◽  
Infrared Emission ◽  
Close Coupling ◽  
Large Molecules ◽  
Polycyclic Aromatic ◽  
Astrophysical Molecules ◽  
Recent Laboratory

The recent laboratory spectroscopy of a number of astrophysically important molecules are discussed. Examples include small molecules such as CrH, HF, FeF, SiS, CH4, H20, SiO and TiO as well as large molecules such as COO and polycyclic aromatic hydrocarbons (PAHs). Many of these examples illustrate the utility of infrared and far infrared emission spectroscopy. The close coupling of laboratory spectroscopy and molecular astronomy has led to advances in both areas.

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