Open AccessObservations of the interstellar hydrogen line of wave length 21 CM made at Kootwijk, Netherlands.
Author(s) -
H. C. van de Hulst
Publication year - 1951
Publication title -
the astronomical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.61
H-Index - 271
eISSN - 1538-3881
pISSN - 0004-6256
DOI - 10.1086/106564
Subject(s) - physics , hydrogen line , astronomy , hydrogen , astrophysics , line (geometry) , interstellar medium , atomic physics , spectral line , galaxy , geometry , mathematics , quantum mechanics
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