By comparing X-ray images from Chandra and visible-light (optical) images from Hubble, the team found that in the past, the supermassive black hole in J1354 appears to have consumed, or accreted, large amounts of gas while blasting off an outflow of high-energy particles.
Researchers presented images of the belching black hole today (Jan. 11) at the American Astronomical Society's winter meeting in National Harbor, Maryland, showing lingering evidence of two burps in a row.
Cosmic gas gets sucked into the sinkholes but is then burped out as energy.
Julie Comerford, from the University of Colorado, said: "Black holes are voracious eaters, but it turns out they don't have very good table manners".
The supermassive black hole in question lies at the center of a galaxy called SDSS J1354+1327, about 800 million light-years from Earth, and it seems to be making meals of gas released by a companion galaxy.
This may not even be all that rare of an occurrence, if the supermassive black hole at the center of the galaxy named "SDSS J1354+1327" can be taken as a typical example of these hungry monsters. In fact, we already have well documented instances of such plumes of gas being ejected from black holes, but the duality of this fresh discovery is what makes it special.
Theory held that supermassive black holes would go through a cycle of feasting, burping and then napping for a while, Comerford said, and spotting these belches helps set a pace for that process.
She went on: "This new burp is actually moving like a shockwave that is coming out very fast".
"You walk in the room and you notice there's an old burp still hanging in the air from the appetiser course". This behavior seems to confirm the fast cycle predicted by astronomer theories about black holes. "Meanwhile, they're eating the main course and they let out a new burp that's rocking the kitchen table".
Our own galaxy, the Milky Way, has experienced at least one burp, Ms Comerford added - noting how "Fermi bubbles" had been detected shining at the extreme end of the electromagnetic spectrum.
The researcher said a collision between two galaxies may have provided "plenty of cosmic gas on which a black hole could feast".
This then allowed researchers to pinpoint the location of its central black hole. She said that their team was fortunate enough to observe the galaxy hosting the super massive black hole a t a time when they could clearly see the evidence for both the burping events.
In a new study, scientists have discovered a new type of big black hole that releases not one but two massive "burps".