In What Sense Are the Quasars "Quasi-Stellar

question 11

Multiple Choice

In what sense are the quasars "quasi-stellar"?

• A) Their energy production is hydrogen-helium fusion, like main sequence stars.
• B) They are upscale versions of O stars, yet hundreds of times more massive.
• C) Their luminosity comes from the millions of supergiants that compose them.
• D) Their spectra is like that of ordinary stars.
• E) In short time exposures, their images looked stellar.

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