Helium-enhanced cool bright stars among Omega Centauri discovered

Helium-enhanced cool bright stars among Omega Centauri discovered

Part of: GS-Prelims and GS-III – Space

In News:

• Helium-enhanced cool bright stars among the metal-rich parts of Omega Centauri globular cluster have been recently discovered. 
• This is the first-ever spectroscopic determination of Helium-abundance in Omega Centauri.
• Omega Centauri: The brightest and the largest globular cluster in the Milky Way Galaxy. 

Important value additions 

Global clusters

• These are the stellar systems with millions of stars formed from the same gaseous cloud. 
• The stars formed will be homogeneous in their chemical composition.
• However, the different stars of Omega Centauri do not show the same metal content