Polycyclic Aromatic Hydrocarbons and Astrophysics

Polycyclic Aromatic Hydrocarbons and Astrophysics
Author :
Publisher : Springer Science & Business Media
Total Pages : 405
Release :
ISBN-10 : 9789400947764
ISBN-13 : 9400947763
Rating : 4/5 (64 Downloads)

Book Synopsis Polycyclic Aromatic Hydrocarbons and Astrophysics by : A. Léger

Download or read book Polycyclic Aromatic Hydrocarbons and Astrophysics written by A. Léger and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.


Polycyclic Aromatic Hydrocarbons and Astrophysics Related Books

Polycyclic Aromatic Hydrocarbons and Astrophysics
Language: en
Pages: 405
Authors: A. Léger
Categories: Science
Type: BOOK - Published: 2012-12-06 - Publisher: Springer Science & Business Media

DOWNLOAD EBOOK

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 Interstellar Medium
Language: en
Pages: 444
Authors: James Lequeux
Categories: Science
Type: BOOK - Published: 2005-08-29 - Publisher: Springer Science & Business Media

DOWNLOAD EBOOK

Describing interstellar matter in our galaxy in all of its various forms, this book also considers the physical and chemical processes that are occurring within
The Physics and Chemistry of the Interstellar Medium
Language: en
Pages: 520
Authors: A. G. G. M. Tielens
Categories: Science
Type: BOOK - Published: 2005-08-25 - Publisher: Cambridge University Press

DOWNLOAD EBOOK

Publisher Description
The Diffuse Interstellar Bands
Language: en
Pages: 402
Authors: A.G.G.M. Tielens
Categories: Science
Type: BOOK - Published: 2012-12-06 - Publisher: Springer Science & Business Media

DOWNLOAD EBOOK

The mystery of the diffuse interstellar bands has been variously a curiosity, a co nundrum, and a nuisance for astronomers in the seven decades since the featur
Bioaccumulation in Marine Organisms
Language: en
Pages: 468
Authors: J.M. Neff
Categories: Science
Type: BOOK - Published: 2002-04-16 - Publisher: Elsevier

DOWNLOAD EBOOK

Large volumes of produced water are generated and discharged to the coastal and ocean waters worldwide from offshore oil and gas production facilities. There is