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Infrared emission from photo-excited gaseous benzene: detection with a new home-made spectrometer

Published online by Cambridge University Press:  13 February 2013

G. Féraud ,
Y. Carpentier ,
T. Pino ,
Y. Longval ,
E. Dartois ,
T. Chamaillé ,
R. Vasquez ,
J. Vincent ,
P. Parneix  and
C. Falvo
...Show all authors
G. Féraud
Affiliation:
Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud 11, France
Y. Carpentier
Affiliation:
Laboratoire de Physique des Lasers, Atomes et Molécules, Université de Lille 1, France
T. Pino
Affiliation:
Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud 11, France
Y. Longval
Affiliation:
Institut d’Astrophysique Spatiale, Atomes et Molécules, Université Paris-Sud 11, France
E. Dartois
Affiliation:
Institut d’Astrophysique Spatiale, Atomes et Molécules, Université Paris-Sud 11, France
T. Chamaillé
Affiliation:
Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud 11, France
R. Vasquez
Affiliation:
Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud 11, France
J. Vincent
Affiliation:
Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud 11, France
P. Parneix
Affiliation:
Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud 11, France
C. Falvo
Affiliation:
Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud 11, France
Ph. Bréchignac
Affiliation:
Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud 11, France

Abstract

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The infrared fluorescence decay and the dispersed emission spectrum are presented for gaseous benzene following 193 nm laser excitation. They were measured with FIREFLY (Fluorescence in the InfraRed from Excited FLYing molecules), a new home-made spectrometer. Redshift and redtail in the CH stretch emission spectra (3.3 μm region) demonstrate that anharmonicity plays a key role when dealing with high internal energies, as it is the case in the interstellar medium.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 58: ECLA - European Conference on Laboratory Astrophysics , 2012 , pp. 379 - 384
Copyright
© The Author(s) 2013

References

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