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| Content Provider | Springer Nature Link |
|---|---|
| Author | Cataldo, Franco Keheyan, Yeghis Heymann, Dieter |
| Copyright Year | 2004 |
| Abstract | In this communication we present the basic concept that the pure PAHs (Polycyclic Aromatic Hydrocarbons) can be considered only the ideal carriers of the UIBs (Unidentified Infrared Bands), the emission spectra coming from a large variety of astronomical objects. Instead we have proposed that the carriers of UIBs and of protoplanetary nebulae (PPNe) emission spectra are much more complex molecular mixtures possessing also complex chemical structures comparable to certain petroleum fractions obtained from the petroleum refining processes. The demonstration of our proposal is based on the comparison between the emission spectra recorded from the protoplanetary nebulae (PPNe) IRAS 22272+ 5435 and the infrared absorption spectra of certain `heavy' petroleum fractions. It is shown that the best match with the reference spectrum is achieved by highly aromatic petroleum fractions. It is shown that the selected petroleum fractions used in the present study are able to match the band pattern of anthracite coal. Coal has been proposed previously as a model for the PPNe and UIBs but presents some drawbacks which could be overcome by adopting the petroleum fractions as model for PPNe and UIBs in place of coal.A brief discussion on the formation of the petroleum-like fractions in PPNe objects is included. |
| Starting Page | 13 |
| Ending Page | 24 |
| Page Count | 12 |
| File Format | |
| ISSN | 01696149 |
| Journal | Origins of Life and Evolution of Biospheres |
| Volume Number | 34 |
| Issue Number | 1-2 |
| e-ISSN | 15730875 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2004-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | Subscribed |
| Subject Keyword | Organic Chemistry Geochemistry Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Ecology, Evolution, Behavior and Systematics Space and Planetary Science |
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