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Laboratory Spectroscopy and Herschel and APEX Observations ofLight Hydride Species

Published online by Cambridge University Press:  25 November 2011

M. Röllig ,
R. Simon ,
V. Ossenkopf ,
J. Stutzki ,
H.S.P. Müller ,
C.P. Endres  and
J. Stutzki
H.S.P. Müller
Affiliation:
I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, Germany. e-mail: [email protected] ;
C.P. Endres
Affiliation:
I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, Germany. e-mail: [email protected] ;
J. Stutzki
Affiliation:
I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, Germany. e-mail: [email protected] ;
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Abstract

Observations of CH+, J = 1 − 0 and 2 − 1 near 0.835 and 1.67THz with Herschel/HIFI and of 13CH+, J = 1 − 0 near0.830 THz with APEX revealed their rest frequencies to be higher than the accepted valuesby 21 and 30 km s-1, respectively. Very recent laboratory measurements of theJ = 1 − 0 transition frequencies of CH+,13CH+ and CD+ and fits to these as well as electronicspectral data resolved the descrepancies. The laboratory spectroscopic situation will bereviewed for selected cationic light hydride species.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 52: Conditions and Impact of Star Formation , 2011 , pp. 291 - 292
Copyright
© EAS, EDP Sciences 2011

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