Concept information
Preferred term
neutral hydrogen atom
Definition(s)
- Non-ionized atomic hydrogen gas which constitutes an important component of the interstellar medium, accounting for perhaps half its mass, even though its density is very low. Its radio emission 21-centimeter line has made it possible to map the distribution of neutral hydrogen in the spiral arms of our own Galaxy and other nearby galaxies. (An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri, https://dictionary.obspm.fr/index.php?formSearchTextfield=neutral+hydrogen&formSubmit=Search&showAll=1)
Broader concept(s)
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/MDL-NNP9DXCN-S
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