Few Unknown Bizarre Objects Are Rotating the Black Hole Present in Our Milky Way
On the heart of the Milky Way, there is a monster black hole with a mass which is 4 million times that of the sun, Sagittarius A* (Sgr A*). Within the last decade, scientists trying within the black hole’s cosmic neighborhood noticed two peculiar objects, which gave the impression to be orbiting the black hole. They had been dubbed G1 and G2.
The character of those so-called “G sources” is controversial. Some astronomers imagine they’re fuel clouds; others contend they give the impression of being more like unusual stars shrouded in the mud. In new research, astronomers reveal they’ve detected four more of those mysterious objects which look similar to G1 and G2 — and counsel they’re members of a new class of cosmic phenomena.
Utilizing close to-infrared knowledge collected over the past 13 years by the Osiris imager, put in on the W.M. Keck Observatory in Hawaii, the group had been capable of examining the mysterious objects in better element. And so they had a very good template to work from — each G1 and G2 have been studied pretty intensely and G2, particularly, has enraptured astronomers up to now.
In 2014, astronomers observing G2 watched on because it barreled directly in the direction of Sgr A*. Astronomers predicted G2 was a fuel cloud, and so it will supply the large black hole a snack — because it approached it will be ripped aside and gasoline would fall into the black hole. However, that is not what occurred. G2 got perilously close to Sgr A* and survived, prompting a rethink about what it could possibly be.
Ghez postulated what astronomers had been seeing was not a fuel cloud, however the product of merged binary stars, after two stars orbiting one another collided and shaped a single, large star. The second workforce of researchers, from the Max Planck Institute, countered that G2 might actually be a gas cloud, suggesting it was part of a larger stream of gas that also incorporated G1. Modeling confirmed this appeared to suit the information nicely.