May be Seyfert galaxies, which are named for astronomer Carl K. Seyfert, who described these spiral galaxies with very bright emission lines back in the 1940s, according to the NASA statement.
This monster black hole pulls in surrounding gas and dust, and as the black hole consumes this material, it releases vast streams of radiation, fueling the active core
in IC 4271 is believed to be a Type II Seyfert galaxy, meaning it is a very bright source of infrared and visible light, according to the NASA statement.
"The active cores of Seyfert galaxies are at their brightest when observed in light outside the visible spectrum,"