Markarian 231 is located about 581 million light-years away from Earth, and it was discovered in 1969 as part of a search of galaxies with strong ultraviolet radiation. It is a Type-1 Seyfert galaxy, and it contains the nearest known quasar. The powerful active galactic nucleus present in the center of the galaxy might be a supermassive binary black hole.
Markarian, Seyfert, quasar, binary black hole, and now, oxygen. UGC 8058 is a special one. You can’t come across it and not pay attention. It is a Markarian galaxy. This means it has a nucleus with excessive amounts of ultraviolet emissions compared with other galaxies.
It is also a Seyfert galaxy. This is one of the two largest groups of active galaxies, along with quasars. It has a quasar-like nucleus with very high surface brightness. Unlike quasars, their host galaxies are clearly detectable.
There seems to be confusion: quasar nucleus versus quasar-like nucleus. This was somehow solved with the idea of the binary black hole. But that’s a big maybe.
The first oxygen emission outside the Milky Way was discovered
A quasar is an extremely luminous active galactic nucleus, in which a supermassive black hole is surrounded by a gaseous accretion disk. Don’t try to make too much sense of it. Scientists are still debating.
But, before they do that, they’ve got yet another reason to research: oxygen emissions. IRAM 30-metre radio telescope in Spain, along with the help of the Northern Extended Millimeter Array, helped astronomers to find evidence of spectral signature of oxygen in Markarian 231. That’s a first in an outer galaxy.
Markarian 231 spites molecules of oxygen as far as 32,615 light-years away from its center. That’s to be understood, given the superpower of the binary black hole, or whatever is there and looks like a supermassive binary black hole.
The study is saying that the central black hole, estimated to be 150 million times the mass of our Sun, has a black hole companion weighing in at 4 million solar masses. And that the two complete an orbit around each other every 1.2 years. But that model has been definitively shown to be unfeasible.
Chin Cullin has only been working as a journalist for just a few short years. Chin attended a technical school while still in high school where he learned a variety of skills, from digital design to coding. Apart from being a contributor to the site, Chin also helps keep Henri Le Chat Noir up and running as our webmaster.