Name: Polycyclic Aromatic Hydrocarbons and Astrophysics
Price: 189.53 EUR
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Author: Léger, A. ; D'Hendecourt, L. ; Boccara, N.
ISBN: 9789401086196

portada Polycyclic Aromatic Hydrocarbons and Astrophysics

Polycyclic Aromatic Hydrocarbons and Astrophysics

Type

Physical Book

Publisher

Springer

Author

Léger, A. ; D'Hendecourt, L. ; Boccara, N.

Language

English

Pages

402

Format

Paperback

Dimensions

23.4 x 15.6 x 2.2 cm

Weight

0.59 kg.

ISBN13

9789401086196

Synopsis "Polycyclic Aromatic Hydrocarbons and Astrophysics"

The near Infra-Red emission of the Interstellar Medium is a very puzzling subject. In the brightest regions, where spectroscopic observa- tions are possible from the ground, several bands (3.3 - 3.4 - 6.2 - 7.7 - 8.6 - 11.3 m) have been observed since 1973. The absence of satisfying explanation was so obvious that they were called "Unidenti- fied IR Emission Bands". The puzzle still increased when were known the first results of the general IR sky survey made by the satellite IRAS. On a large scale, the near IR emission of the Interstellar medium was expected to be very small but it was observed to be about one third of the total IR emission for our own galaxy ..- The situation has moved in 1984 when it was suggested that a class of stable organic molecules, the Polycyclic Aromatic Hydrocarbons (PAH's) could be at the origin of this near IR emission. Initially based on the required refractory character of particules that should be heated to high temperature without subliming, this hypothesis leads to a sugges- tive spectroscopic similarity with the observed astronomical bands. This hypothesis is attractive and it has many implications, for ins- tance, the PAHs would be the most abundant organic molecules in the universe. However, many points have to be clarified and the different consequences of this suggestion should be explored.

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Polycyclic Aromatic Hydrocarbons and Astrophysics - Léger, A. ; D'Hendecourt, L. ; Boccara, N.

Synopsis "Polycyclic Aromatic Hydrocarbons and Astrophysics"

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