This article examines the spectroscopic properties of young stellar objects, linking accretion dynamics to observed ...
Weymann and Wilcox 1 have recently claimed that there is no evidence that the true occurrence of absorption lines in quasi-stellar objects (QSOs) is a function of red-shift. Such a conclusion, if true ...
What is clear is that either substantial revisions of the physical ingredients of galaxy formation and possibly our standard model of cold-dark-matter halo assembly are needed to explain the rapid ...
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