===== Detection of Imidogen, NH, in Extragalactic Sources =====

The detection of the imidogen radical, NH, with //ISO// LWS in an Extragalactic source was described first by\\
E. González-Alfonso, H, A. Smith, J. Fischer, and J. Cernicharo,\\
**[[https://doi.org/10.1086/422868|The Far-Infrared Spectrum of Arp 220]]**\\
//Astrophys. J.// **613**, (2004) 247–261.\\
The two overlapping strongest fine structure components of the //N// = 2 – 1 transition were clearly detected near 153.2 μm as well as the overlapping components of 3 – 2 near 102 μm. There is additional evidence near the noise level for the three weaker fine structure components of 2 – 1.


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Contributor(s): H. S. P. Müller; 10, 2010.

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