Chandra telescope made a family portrait of a cluster of NGC 6231

The NGC 6231 star cluster, about 5,200 light-years distant from us, is a very attractive object for many astronomers. It contains a population of newly formed sun-like luminaries. Investigating such objects, scientists hope to better understand how new stars are formed.
The Chandra telescope made a family portrait of a cluster of NGC 6231 stars, a cluster, However, much, a population, more scientists, young, stars, around, formed, stars, contains, astronomers, VISTA, astronomers, recently, young, inside, more

However, until recently, the study of NGC 6231 was not the easiest task. It was extremely difficult for researchers to separate the young sun-like stars in the cluster from a much larger population of the old stars around them. To solve this problem, scientists used the Chandra X-ray telescope.
The Chandra telescope made a family portrait of a cluster of NGC 6231 stars, a cluster, However, much, a population, more scientists, young, stars, around, formed, stars, contains, astronomers, VISTA, astronomers, recently, young, inside, more

Young stars have strong magnetic fields and show increased activity, which leads to the fact that their atmospheres emit sufficiently powerful streams of x-rays. Using Chandra, as well as data from the VISTA infrared telescope (Visible and Infrared Survey Telescope for Astronomy), astronomers were able to sort out the stars of NGC 6231 by age.
The Chandra telescope made a family portrait of a cluster of NGC 6231 stars, a cluster, However, much, a population, more scientists, young, stars, around, formed, stars, contains, astronomers, VISTA, astronomers, recently, young, inside, more

VISTA telescope
It turned out that NGC 6231 contains a population of between 5,700 and 7,500 young stars, whose average age is about 3.2 million years. This is about twice that in the famous Orion Nebula. However, since NGC 6231 is significantly larger in volume, the density of young stars in it is 30 times less than in Orion.
The Chandra telescope made a family portrait of a cluster of NGC 6231 stars, a cluster, However, much, a population, more scientists, young, stars, around, formed, stars, contains, astronomers, VISTA, astronomers, recently, young, inside, more

According to astronomers, initially the young stars inside NGC 6231 formed a much more compact group, but later it expanded. At the same time, the cluster is still gravitationally bound. However, in the future it may disintegrate, just as the cluster, in which the Sun had once formed, disintegrated.
Let me remind you that recently the Australian astronomers have embarked on a project, the purpose of which is to search for the star "relatives" of the Sun that formed with him in one cluster.

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