Speaker
Laura Scott
(Armagh Observatory and Planetarium)
Description
Hot subdwarfs are small, blue stars with unusual surface chemistries. Some have almost no hydrogen, and many have elevated heavy metal abundances. They are thought to form through binary interaction, with different formation channels enriching the end products with different species. I will describe helium-rich hot subdwarfs formed through white dwarf collision, which leads to nitrogen or carbon enriched products. I will also describe some of the mixing processes thought to affect the surface abundances of hot subdwarfs.
Primary author
Laura Scott
(Armagh Observatory and Planetarium)
