Helium Enhanced Cool Stars

Indian Institute of Astrophysics (IIA) an autonomous institute of DST, have discover He-enhanced cool bright stars among the metal-rich parts of Omega Centauri globular cluster.
This is the first time He-abundance has been found in Omega Centauri.
Globular clusters are the stellar systems with millions of stars formed from the same gaseous cloud.
Omega Centauri is the brightest and the largest globular cluster in our Milky Way Galaxy.
Usually, the stars formed will be homogeneous in their chemical composition of elemental abundances.
The different stars of Omega Centauri do not show the same metal content, a parameter that indicates its age, but a large range in it.
The study provides a very important clue for the origin of the He-enhanced population establishing that these are the second generation of stars formed from the metal-rich and He-enhanced material from the first generation of stars.