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The aromatic infrared bands (AIBs) centred at 3.3, 6.2, 7.7, 8.6 and 11.2 microns are ubiquitous in diverse interstellar sources including HII regions, reflection nebulae, planetary nebulae, star forming regions, interstellar medium (ISM) of Milky Way as well as external galaxies. Important differences in spectral details have emerged with quality observational data from space based telescopes ISO and SPITZER. The hypothesis that polycyclic aromatic hydrocarbons (PAHs) are the most viable carriers of AIBs was proposed more than two decades back. The infrared (IR) spectra of PAHs is consistent with characteristic frequencies of the AIBs. Improved laboratory and computational spectroscopic techniques have strengthened the hypothesis and PAHs are now considered as important inhabitants of the ISM incorporating substantial fraction of carbon. Theoretical quantum chemical calculations provide an alternative to obtain the IR information of complex species such as substituted and very large and irregular PAHs. The results of theoretical calculations have been used in IR emission models.
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- EditoreLAP LAMBERT Academic Publishing
- Data di pubblicazione2015
- ISBN 10 3659453757
- ISBN 13 9783659453755
- RilegaturaCopertina flessibile
- LinguaInglese
- Numero di pagine232
- Contatto del produttorenon disponibile
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Infrared Spectra of Astrophysical PAHs
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LAP LAMBERT Academic Publishing, 2015
ISBN 10: 3659453757
ISBN 13: 9783659453755
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Da: moluna, Greven, Germania
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Kartoniert / Broschiert. Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Pathak AmitAmit Pathak completed his PhD in Physics from Gorakhpur University in the year 2006. His work was on theoretically simulating the vibrational spectra of large aromatic molecules that are a significant constituent of the in. Codice articolo 21509063
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Infrared Spectra of Astrophysical PAHs
Editore:
LAP LAMBERT Academic Publishing Mrz 2015, 2015
ISBN 10: 3659453757
ISBN 13: 9783659453755
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The aromatic infrared bands (AIBs) centred at 3.3, 6.2, 7.7, 8.6 and 11.2 microns are ubiquitous in diverse interstellar sources including HII regions, reflection nebulae, planetary nebulae, star forming regions, interstellar medium (ISM) of Milky Way as well as external galaxies. Important differences in spectral details have emerged with quality observational data from space based telescopes ISO and SPITZER. The hypothesis that polycyclic aromatic hydrocarbons (PAHs) are the most viable carriers of AIBs was proposed more than two decades back. The infrared (IR) spectra of PAHs is consistent with characteristic frequencies of the AIBs. Improved laboratory and computational spectroscopic techniques have strengthened the hypothesis and PAHs are now considered as important inhabitants of the ISM incorporating substantial fraction of carbon. Theoretical quantum chemical calculations provide an alternative to obtain the IR information of complex species such as substituted and very large and irregular PAHs. The results of theoretical calculations have been used in IR emission models. 232 pp. Englisch. Codice articolo 9783659453755
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Infrared Spectra of Astrophysical PAHs : A Density Functional Theory Approach
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LAP LAMBERT Academic Publishing, 2015
ISBN 10: 3659453757
ISBN 13: 9783659453755
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Da: AHA-BUCH GmbH, Einbeck, Germania
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Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The aromatic infrared bands (AIBs) centred at 3.3, 6.2, 7.7, 8.6 and 11.2 microns are ubiquitous in diverse interstellar sources including HII regions, reflection nebulae, planetary nebulae, star forming regions, interstellar medium (ISM) of Milky Way as well as external galaxies. Important differences in spectral details have emerged with quality observational data from space based telescopes ISO and SPITZER. The hypothesis that polycyclic aromatic hydrocarbons (PAHs) are the most viable carriers of AIBs was proposed more than two decades back. The infrared (IR) spectra of PAHs is consistent with characteristic frequencies of the AIBs. Improved laboratory and computational spectroscopic techniques have strengthened the hypothesis and PAHs are now considered as important inhabitants of the ISM incorporating substantial fraction of carbon. Theoretical quantum chemical calculations provide an alternative to obtain the IR information of complex species such as substituted and very large and irregular PAHs. The results of theoretical calculations have been used in IR emission models. Codice articolo 9783659453755
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Infrared Spectra of Astrophysical PAHs
Editore:
LAP LAMBERT Academic Publishing Mär 2015, 2015
ISBN 10: 3659453757
ISBN 13: 9783659453755
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Da: buchversandmimpf2000, Emtmannsberg, BAYE, Germania
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Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The aromatic infrared bands (AIBs) centred at 3.3, 6.2, 7.7, 8.6 and 11.2 microns are ubiquitous in diverse interstellar sources including HII regions, reflection nebulae, planetary nebulae, star forming regions, interstellar medium (ISM) of Milky Way as well as external galaxies. Important differences in spectral details have emerged with quality observational data from space based telescopes ISO and SPITZER. The hypothesis that polycyclic aromatic hydrocarbons (PAHs) are the most viable carriers of AIBs was proposed more than two decades back. The infrared (IR) spectra of PAHs is consistent with characteristic frequencies of the AIBs. Improved laboratory and computational spectroscopic techniques have strengthened the hypothesis and PAHs are now considered as important inhabitants of the ISM incorporating substantial fraction of carbon. Theoretical quantum chemical calculations provide an alternative to obtain the IR information of complex species such as substituted and very large and irregular PAHs. The results of theoretical calculations have been used in IR emission models.Books on Demand GmbH, Überseering 33, 22297 Hamburg 232 pp. Englisch. Codice articolo 9783659453755
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