What is the active galactic core (AGN)?

The active galactic core is a small area, between about 1 and 100 light years on average, in the center of the galaxy, which emits an amazing amount of radiation through some or all electromagnetic spectrum, from the shortest gamma beams to the longest radio waves. Active galactic cores are among the most energetic phenomena in space and in terms of luminousness also beating supernova.

Active galactic cores are powered by mass growth to supermassive black holes, weighing between 10

6

10 times of the sun. These black holes generally have a size of a light year diameter. Infalling mass is formed into a growing disc, with gas particles moving and colliding with each other at speeds close to the speed of light. This releases a huge amount of energy, often in the form of relativistic nozzles protruding perpendicular to the growing disk. Depending on whether these nozzles point to the ground, the Active galactic core can have either very high luminosity or hardly clearst.

Active galactic cores are by far the most common in older and thus more distant galaxies. Kvasars, a subgroup of the active galactic core, are among the farthest observed objects in space, with an observed distance of 13 billion light years or higher. These yeasts serve as windows for a very early universe. Although it is assumed that all massive galaxies have central supermassive black holes that could theoretically supply active galactic cores, in practice they seem to be hidden only older galaxies. This is probably because the matter in the central areas of galaxies has not yet fallen into the hole and was therefore in a larger offer. Every year, the strongest active galactic cores consume solar material material.

Active galactic cores are widely divided by radio aloud and radio-quiet agns. Radio-Quiet active galactic cores tend to miss relayAtivist nozzles, release heat and light through increasing matter, but without projections. Radio-voice active galactic cores have relativistic nozzles and in the Holy buildings, Blazars, these nozzles are located very close to the supervision line.