Gold has been known since prehistory. The symbol is derived from
Latin aurum (gold). AuI 9.2 eV, AuII 20.5 eV, AuIII 30.0 eV.
Absorption lines of AuI In the sun, the equivalent width of AuI
3122(1) is 0.005. Behavior in non-normal stars The probable
detection of Au I was announced by Jaschek and Malaroda (1970)
in one Ap star of the Cr-Eu-Sr subgroup. Fuhrmann (1989)
detected Au through the ultimate line of Au II at 1740(2) in
several Bp stars of the Si and Ap stars of the Cr-Eu-Sr
subgroups. The presence of Au seems to be associated with that
of platinum and mercury. Au has one stable isotope, Au197 and 20
short-lived isotopes and isomers. Au can only be produced by the
r process. Published in "The Behavior of Chemical Elements in
Stars", Carlos Jaschek and Mercedes Jaschek, 1995, Cambridge
University Press.