2021-09-27

NGC 5728 Galaxy under Hubble lens: Although spectacular, it is not completely captured

By yqqlm yqqlm

NGC 5728 Galaxy under Hubble lens: Although spectacular, it is not completely captured < / P > < p > in this picture, NCG 5728 seems to be an elegant and bright rod spiral galaxy. What this photo doesn’t show, however, is that NGC 5728 is also an energetic Galaxy type, known as the Seyfert galaxy</ p> < p > these energetic galaxies are powered by their active cores, which are called active galactic nuclei (AGNs). Although there are many different types of AGNs, only some of them provide energy for the Seyfert galaxy</ p> < p > NGC 5728, like all Seyfert galaxies, is different from other galaxies with AGN because the galaxy itself can be seen clearly. Other types of AGNs, like quasars, emit so much radiation that it is almost impossible to observe their galaxies</ p> < p > as shown in this picture, NGC 5728 is clearly visible and looks normal at optical and infrared wavelengths. What’s fascinating is that the galaxy center emits a lot of light in the insensitive part of the electromagnetic spectrum of WFC3</ p> < p > what is more complicated is that the AGN of NGC 5728 core may actually emit some visible and infrared light, but it may be blocked by the dust around the galaxy core</ p>