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Title: A study of cosmic radio emission at a wavelength of 21 cms
Author: Davies, Rodney Deane
Awarding Body: University of Manchester
Current Institution: University of Manchester
Date of Award: 1956
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The prediction by van de Hulst, (1945) and Shklovsky (1949) and the subsequent discovery by Ewen and Purcell, Muller and Oort and Pawsey in 1951 of 21 cm emission from interstellar neutral hydrogen have opened up many new fields of research in astronomy. Half of the mass of our Galaxy, in t he form of neutral hydrogen and previously undetectable, is now accessible to detailed study. Moreover, since there is negligible interstellar obscuration at radio frequencies, even the most distant parts of the Galaxy are observable. An investigation of the Doppler displacement of the line enables the emission from neutral hydrogen to be mapped in a third dimension - depth.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available