Chemical Abundances in Symbiotic Stars

Guoliang Lu, Chunhua Zhu, Zhanwen Han +1

We have carried out a study of the chemical abundances of ${}^1$H, ${}^4$He, ${}^{12}$C, ${}^{13}$C, ${}^{14}$N, ${}^{15}$N, ${}^{16}$O, ${}^{17}$O, ${}^{20}$Ne and ${}^{22}$Ne in symbiotic stars (SSs…