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Results tagged with quasars
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user 16667
Questions about quasi-stellar radio sources, active galactic nuclei that are far away and quite old.
2
votes
1
answer
121
views
Has the Lyman-alpha forest ever been used to test Arp's theory?
Has the Lyman-alpha forest ever been used to test Halton Arp's theory that quasars are not cosmological but instead are ejected from relatively near-by galaxies? …
6
votes
1
answer
129
views
Gravitational lensing of quasars
Are there any cases in which the gravitational lensing of a quasar has been observed in both visible light and in radio waves, and if so, is the radio-wave resolution good enough to show that the lens …