According to Current Theories,the Energy Source of Radio Galaxies and Quasars

question 17

Multiple Choice

According to current theories,the energy source of radio galaxies and quasars is

• A)A one thousand solar mass pulsar in each of two radio lobes
• B)A one hundred million solar mass black hole at the center of the object
• C)The conversion of hydrogen to helium via nuclear reactions
• D)Gravitational contraction of massive stars near the spiral arms

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