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1. What was so unusual about
the spectra of the first quasars that delayed the identification of their spectral lines?
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2. How do we know that quasars must be extremely luminous?
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3. How do we know that quasars must be compact and small in size?
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4. What are some of the characteristics of active galaxies that distinguish them from normal galaxies?
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5. What is synchrotron radiation and what does the presence of polarization in the light coming from active galactic nuclei tell us about the source of light?
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6. What is the present analysis of the relationship between quasars and active galaxies?
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7. What is the most plausible explanation for the tremendous energy emanating from a small region of space that is characteristic of active galaxies and quasars?
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8. What observational evidence supports this hypothesis of the energy source for quasars and AGN?
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