How Do Astronomers Explain the Energetic Jets That Come Out

question 8

Multiple Choice

How do astronomers explain the energetic jets that come out of quasars and active galactic nuclei in opposite directions?

• A) the jets are "spit out" from the chaotic accretion disks of supermassive black holes in directions that are perpendicular to the disk
• B) the jets are produced when a whole series of massive stars near the galaxy's center explode at the same time as supernovae
• C) the jets are connected with the dark matter in distant galaxies; this dark matter is in two large bubbles above and below the galaxy
• D) the jets are a kind of astronomical mirage, produced by gravitational lensing by a large mass between us and the quasar
• E) there is no current explanation for these jets; they are an unsolved mystery
• Section 27.3: Quasars as Probes of Evolution in the Universe

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