Astrophysics (Index)About

Lambda Boötis star

(λ Boo)
(peculiar star with metallicity only with lighter elements)

A Lambda Boötis star (λ Boo) is a chemically peculiar star, apparently a Population I star, generally A-type. with carbon, oxygen, and nitrogen metallicity much like the Sun, but with much less iron and heavier elements. Lambda Boötis (λ Boötis) is the prototype. On the order of 50-100 are known, and not explained: theories include attributes of the star-forming region, or accretion of less-iron-rich gas after formation.

(star type,metallicity,iron)
Further reading:ötis_star

Referenced by pages:
chemically peculiar star (CP star)