Astronomers have accumulated quite advanced knowledge about the galaxies that litter our Universe. But ours, the Milky Way, still holds secrets. He also just discovered a new one: a ring of metal-rich stars that surrounds the galactic bar.
When we look at the sky at night, we rely on our own strength.to reveal to us the beauty of the universe. , they first came up with telescopes that opened up new horizons for them. Today, they even have tools that allow them to see beyond the visible. In the region of , For example. And thus overcome the barriers of dust that have long hidden the heart of our .
Let us remember that our Earth floats somewhere in the sleeve of our. In the plane of your disk. It is difficult in these conditions to perceive the structure . Especially its internal structure. But over the past decade, astronomers have taken advantage of a large amount of new observational data to back up their simulations and build a model that matches reality. The so-called barred galaxy. in which the group is centers – the rod – which comes out of the bulge – the bulb.
Today some(Germany) add new details to this description. Thanks to research carried out in from on the Apogee missions. This one studies at the highest all stellar components of the Milky Way. By combining this data with data obtained by the Gaia mission, which measures positions and out of a billion stars, the explorers were almost there. All they needed were state-of-the-art computer models to peer beyond the galactic bulge and explore areas hitherto inaccessible. What to discover in a new way of the 30,000 stars located in the inner regions of the Milky Way.
Trace the history of the formation of the Milky Way
From there, astronomers built star density maps,and the age of this region of the Milky Way. Maps showing around the central bar of our galaxy richer — understand in elements harder than and helium – and consists of younger stars about 7 billion years old, concentrated in the direction of the galactic plane.
Similar rings have already been observed inside other. But researchers still wondered if we had it. Now they have an answer.
An answer that informs them a little more about the story. Astronomers estimate that the galactic bar formed at least 7 billion years ago. The stars that make up the recently observed ring must have continued to form due to the influx after installing this bar.
The question remains unanswered about a possible connection between the ring, discovered by researchers from the Max InstituteAnd Milky Way. Is gas flowing inward into our galaxy to fuel star formation in the core of the ring, as might be the case in other spiral galaxies? To answer this question, astronomers will need not only more data, but more accurate models.