Brand new research led by University of Maryland astronomers documented six sleepy, low-ionization nuclear emission-line region galaxies suddenly remodeling into blazing quasars, dwelling to the brightest of all active galactic nuclei. The researchers suggest they have found an entirely new type of black hole activity on the centers of those six LINER galaxies.
Galaxies are available all kinds of shapes, sizes, and brightnesses, ranging from humdrum ordinary galaxies to luminous active galaxies. Whereas an average galaxy is seen primarily due to the light from its stars, an active galaxy shines brightest at its middle, or nucleus, the place a supermassive black hole emits a steady blast of vivid mild as it voraciously consumes close by fuel and dust.
Sitting somewhere on the spectrum between peculiar and energetic galaxies is one other class, known as low-ionization nuclear emission-line area (LINER) galaxies. While LINERs are common, accounting for one-third of all close galaxies, astronomers have fiercely debated the primary supply of sunlight emission from LINERs.
A team of astronomers noticed six delicate-mannered LINER galaxies all of a sudden and surprisingly remodeling into ravenous quasars—dwelling to the brightest of all energetic galactic nuclei. The crew reported their observations, which might assist demystify the character of each LINERs and quasars whereas answering some burning questions on galactic evolution. Primarily based on their evaluation, the researchers recommend they have found a wholly new sort of black hole activity on the facilities of those six LINER galaxies.
Changing transitions have been documented in other galaxies in the class of active galaxies known as “Seyfert galaxies.” The Seyfert galaxies all have a bright, active galactic nucleus, but Type 1 and Type 2 Seyfert galaxies differ in the quantity of light they emit at specific wavelengths.