Active galaxies are thought to have _______ in their centers.

Question

Quizplus · Accepted Answer

Active galaxies are believed to have both accretion disks and massive black holes at their centers. The accretion disk, by the force of gravity, pulls in matter and gases that heat up and emit intense radiation, making the galaxy appear bright and active. The center of the accretion disk is believed to harbor a supermassive black hole, a gravitational sinkhole with a mass millions or billions times greater than the Sun. The black hole pulls in the material from the disk, causing a surge in activity observed as jets or outflows of matter. Therefore, both accretion disks and massive black holes are the contributing factors to the activity of active galaxies.

Active Galaxies Are Thought to Have _______ in Their Centers