stellar evolution

Blue sub-dwarfs: complex stellar evolution

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In the vast cosmic theater, blue subdwarfs shine like silent witnesses to the complex stellar evolution. These compact stars represent an astonishingly rare and fascinating stage in the life of stars, particularly moderate to low mass stars. Their emergence, inscribed in an advanced process of stellar formation, raises many questions about the mechanisms governing the … Read more

The different phases of a star’s life

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Les différentes phases de la vie d'une étoile

IN SHORT Birth: Formation of a star from a nebula. Main sequence phase: Stabilization and fusion of hydrogen into helium. Red giant: Expansion as hydrogen depletes, the star becomes a red giant. Variable end: Depending on its mass, it can become a white dwarf or explode into a supernova. To die: Results in a supernova … Read more