NASA / ESA’s Hubble Space Telescope recently observed a celestial object, classified as Z 229-15, that is basically a Seyfert galaxy containing a quasar, which by definition, hosts an Active Galactic Nucleus (AGN). It’s located approximately 390 million light-years from Earth in the constellation Lyra and the extra luminosity is due to the presence of a supermassive black hole at the galaxy’s core.
By having this black hole at the galaxy’s core, material sucked in doesn’t actually fall directly into it, but rather drawn into a swirling disc. It is then fiercely tugged towards the black hole, which causes the material to get so hot that it releases a large amount of energy across the electromagnetic spectrum, and that’s what makes the AGNs appear so bright.
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Quasars are a particular type of AGN; they are typically both extremely bright and extremely distant from Earth — several hundred million light-years is considered nearby for a quasar, making Z 229-15 positively local,” said the European Space Agency.
