The New Encyclopædia Britannica: The new Encyclopædia BritannicaEncyclopædia Britannica, 1992 |
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Page 778
... radio astronomers have discovered that some of the compact The National Radio Astronomy Observatory , operated by Associated Universities , Inc. , under contract with the National Science Foundation ; observers , Richard A. Perley ...
... radio astronomers have discovered that some of the compact The National Radio Astronomy Observatory , operated by Associated Universities , Inc. , under contract with the National Science Foundation ; observers , Richard A. Perley ...
Page 780
... radio - continuum source denoted Sagittarius A * . This synchrotron - radiation source is unique in the Galaxy : it is variable on a time scale of one day , implying that the radio emission arises from a region with dimensions not much ...
... radio - continuum source denoted Sagittarius A * . This synchrotron - radiation source is unique in the Galaxy : it is variable on a time scale of one day , implying that the radio emission arises from a region with dimensions not much ...
Page 794
... radio galaxies to be fairly sampled to much larger volumes than optical systems . ) Ryle found more radio galaxies at large distances from the Earth than can be explained under the assumption of a uniform spatial distribution no matter ...
... radio galaxies to be fairly sampled to much larger volumes than optical systems . ) Ryle found more radio galaxies at large distances from the Earth than can be explained under the assumption of a uniform spatial distribution no matter ...
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