Strange phenomena around the Milky Way!
When something incomprehensible happens nearby, we are on alert, aren't we?
And, of course, it is necessary to clarify what this strange event might be related to and how we should deal with it.
The example I just mentioned briefly describes what is happening in our huge galaxy, the Milky Way.
Recently, events around our galaxy have surprised astronomers like never before.
Galaxy
The Milky Way constantly presents numerous challenges to scientists.
The one that has met the greatest number of these challenges was MeerKAT, a next-generation radio telescope located in South Africa.
After 144 hours of observation and the analysis of 70 terabytes of data, it assembled an unprecedented image of the galactic center.
Almost everything in this incredibly detailed photo posed some kind of mystery.
For example, spherical supernova explosions appear in it.
On the right, there is an unidentified object with a bright, comet-like tail, but it is not a comet, and to this day astronomers do not know exactly what it is.
Next to it, you can see an interesting radio source with a long tail.
It is believed to be moving at an impressive speed, leaving trails due to this speed.
Here, a small mysterious spiral appears to be protruding from a black hole.
According to scientists, this structure may be ionized gas flowing from the depths of the supermassive black hole Sagittarius A*.
Elsewhere in the image, even larger and more mysterious objects appear.
From the center of the Milky Way, a gigantic, magnetized object extends, similar to an antenna.
Astronomers' calculations indicate that it could reach 150 light years.
The paradox of dwarf galaxies
In addition to the story of the bubbles, many strange events are occurring in the surroundings of the Milky Way. Among them, the Milky Way’s dwarf satellite galaxies are disappearing!
Or they are so well hidden that astronomers cannot find them.
According to the standard model of cosmology, there should be hundreds of these small satellite galaxies around giant galaxies.
However, in reality, only 59 satellite galaxies have been found around the Milky Way.
Where did the other celestial bodies that surround the galaxy go?
Could these small satellite galaxies have been captured by the gravity of other giant galaxies at some stage of galactic evolution, or were they the result of cosmic cataclysms?
However, researchers do not consider these events to be all that surprising.
They argue that dwarf galaxies have simply not yet been detected by modern telescopes.
In fact, many of these galaxies are incredibly small and diffuse, with some containing only a few thousand stars.
On the other hand, the Milky Way is believed to be home to around 100 billion celestial bodies.
This luminosity ends up hiding the modest light from the small satellite galaxies.
Another factor that makes it difficult to identify dwarf galaxies is that, for some reason, they do not follow the expected rotation rules.
This conclusion was reached by the AlfA research team, composed of scientists from Germany, Austria and Australia.
The isolation of giant galaxies
Meanwhile, new evidence has emerged related to the disappearance of dwarf galaxies around the Milky Way.
This evidence came from the two largest satellite galaxies of the Milky Way: the Large Magellanic Cloud and the Small Magellanic Cloud.
Due to an inexplicably strange isolation, these celestial bodies decided to "testify" to astronomers.
According to calculations, both Magellanic Clouds should share cosmic space with several neighboring celestial bodies.
Researchers at Yale University studied 100 spiral galaxies and their satellite galaxies over a 12-year period, comparing them to the Milky Way. The results showed that the Milky Way has very distinct characteristics compared to other galaxies! The Milky Way is surrounded by small satellite galaxies composed only of old stars. In addition, the two largest satellite galaxies of the Milky Way are actively forming new stars. These are precisely the Large and Small Magellanic Clouds, easily observable with the naked eye in the southern hemisphere. The other satellite galaxies are extremely diffuse, being observable only with space telescopes or extremely powerful instruments. The ratio between two bright galaxies and dozens of small, dark galaxies was so peculiar that it surprised even astronomers. If a large satellite galaxy, such as the Magellanic Cloud, orbits around the main spiral galaxy, it is likely that there will be an incredible number of smaller celestial bodies around it. However, in the Milky Way, everything was reversed!
There are not one, but two large satellite galaxies under the influence of the Milky Way.
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