A stellar cluster 'camouflaged' in front of the Orion Nebula

A team of researchers, including Hervé Bouy, of the Center for Astrobiology (CSIC-INTA), has captured a massive 'camouflaged' star cluster between Earth and one of the great wonders of the night sky, the Orion Nebula.

Since 1960 the existence of this stellar population was known, however, the observations have revealed that this population is more massive than previously thought and is not distributed so uniformly. The importance of this discovery is twofold: on the one hand, the new identified cluster is a brother slightly older than the Trapezium Cluster, which is at the heart of the Orion Nebula; and second, what astronomers have been calling the Orion Nebula Cluster is, in fact, a complicated mixture of these two clusters, to which other stars of the Milky Way are added that are alien to both.

Hervé Bouy, from the Center for Astrobiology (CSIC-INTA), in Madrid, is one of the authors of this work and explains that "we need to complete in detail what we thought were the most reliable observations regarding the formation of stars and clusters. " It highlights the need for a thorough follow-up work where "if we want to understand what happens in this region, the formation of stars in clusters, and even the first stages of planet formation, we must distinguish these two populations that are mixed, star by star" .

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Fuente: El Mundo

 

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