Detection of C2, CN, and NaID absorption in the AGB remnant of HD56126

Eric J. Bakker, L. B. F. M. Waters, Henny J. G. L. M. Lamers +2

We present the detection of molecular absorption lines in the optical spectrum of the post-AGB star HD56126. The C2 Phillips A^{1}Π_{u}-X^{1}Σ^{+}_{g} (1,0), (2,0), and (3,0); Swan…