ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Deuterium is rarely seen in quasar absorption systems because the associated hydrogen is usually distributed over a wide range of velocities and its absorption spectrum obscures that of deuterium. We selected quasar 1937 - 1009 because we found that the absorption system at z = 3.572 showed ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/381207a0
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