Which of the following is the most correct definition of the term accretion disk?
Which of the following is the most correct definition of the term relativistic jet?
The light from a distant quasar has the same intensity as the light from a star 15,000 light-years away. If the star has a luminosity of W and the quasar is a distance of light-years away, what is the luminosity of the quasar? Give your answer in scientific notation to 1 decimal place.