Supermassive Black Holes and AGN Quiz

What is the distance between the closest confirmed pair of supermassive black holes?

• 1000 light-years

• 800 light-years

• 500 light-years

• 300 light-years

Which instruments were used to detect the closest pair of supermassive black holes?

• Very Large Telescope and ALMA

• James Webb Space Telescope and Spitzer Space Telescope

• Hubble Space Telescope and Chandra X-ray Observatory

• Kepler Space Telescope and Fermi Gamma-ray Space Telescope

What are active galactic nuclei (AGN) fueled by?

• Stellar winds

• Infalling gas and dust

• Dark matter

• Cosmic rays

Why were AGN binaries more common in the early universe?

• Larger black hole sizes

• More frequent galaxy mergers

• Higher star formation rates

• Greater amounts of dark energy

What will happen to the black hole pair in approximately 100 million years?

• They will merge and create gravitational waves

• They will form a new galaxy

• They will become inactive

• They will drift apart