[News] Hubble telescope captures a mysterious object 390 million light years from Earth

[#Steeven.™]

The mysterious celestial object is located in the constellation of Lyra.

The Hubble Space Telescope spotted a celestial object in the Lyra constellation, 390 million light-years from Earth, that defies its classification.

When investigating Z 229-15, it sometimes shows up as an active galactic nucleus (an AGN); sometimes like a quasar; and sometimes as a Seyfert galaxy. Which of these is really the Z 229-15? The answer is that it is all of these things at once, because these three definitions have significant overlap, NASA reports.

An AGN is a small region at the heart of certain galaxies (called active galaxies) that is much brighter than the stars in the galaxy would be. The additional luminosity is due to the presence of a supermassive black hole in the nucleus of the galaxy, details Europa Press. Material sucked into a black hole doesn't actually fall directly into it, but instead is pulled into a spinning disk, from where it is inexorably drawn into the black hole. This disk of matter gets so hot that it releases a huge amount of energy across the electromagnetic spectrum, and that's what makes AGNs appear so bright.

Quasars are a particular type of AGN; they are typically extremely bright and extremely distant from Earth: several hundred million light-years are considered close for a quasar, making Z 229-15 positively local.

Often an AGN is so bright that the rest of the galaxy cannot be seen, but Seyfert galaxies are active galaxies that host very bright AGNs (quasars) while the rest of the galaxy is still observable. So Z 229-15 is a Seyfert galaxy containing a quasar, and by definition hosting an AGN.

 

https://www.eluniverso.com/noticias/internacional/telescopio-hubble-capta-un-misterioso-objeto-a-390-millones-de-anos-luz-de-la-tierra-nota/