Sentences with phrase «galactic nucleus which»
There have been a number of mechanisms proposed for quenching, for example «feedback» from supernovae or active galactic nuclei which breaks up the star forming clouds and reduces the star formation rate, but the measurement and verification of yet other possible processes is of great importance.
https://www.sciencedaily.com/ Not exact matches
Another culprit might be active galactic nuclei (AGN), which are blazingly strong light sources powered by black holes.
The leading suspects in the half - century old mystery of the origin of the highest - energy cosmic particles in the universe were in galaxies called «active galactic nuclei,» which have a super-radiating core region around the central supermassive black hole.
The central region of M77 is an «active galactic nucleus,» or AGN, which means that matter is vigorously falling toward the central supermassive black hole and emitting intense light.
However, at high redshifts we require active, continuous accretion to infer the presence of the SMBHs, which often comes in the form of long - term accretion in active galactic nuclei.
Although both galaxy types host voracious supermassive black holes known as active galactic nuclei, which actively swallow matter and emit massive amounts of radiation, Type I galaxies appear brighter to astronomers» telescopes.
These mergers produce shock waves, which propagate through the clusters, reaccelerating particles previously accelerated by supermassive black holes in the galactic nuclei.
Attention will now shift to active galactic nuclei (AGN), which are powered by supermassive black holes.
From this perspective, astronomers have been actively working on the starburst regions of galaxies (* 1) and the active galactic nuclei (AGN) at the center of galaxies, which are called circumnuclear disks (CND)(* 2).
M77 is known to have an active galactic nucleus (AGN) at its center which is surrounded by a starburst ring with a radius of 3500 light years.
Today, quasars are thought to be one of several types of active galactic nuclei, all of which are powered by central black holes.
Bryan, you are perhaps unaware of the Big Bang vs Steady State rows, the rows about existence of black holes, the rows about the causes of active galactic nuclei, the current rows about inflationary theory (which touch on your reference to dark matter).