2024RNAAS...8..315F

We identified detectable molecular absorption lines and estimated the abundances of carbon (C), aluminum (Al), chlorine (Cl) and chromium (Cr) in an M dwarf star with T_eff ∼ 3100 K. We chose a well-studied M-dwarf, HD 125455B, since this star is in a binary pair with K-type star, HD 125455. Abundance analysis was conducted using a high-resolution H-band spectrum from IGRINS. We identified CO lines to test the methodology and identified detectable AlO, HCl, and CrH lines in the IR H-band. We determined upper limits for stellar abundances for [C/H], [Al/H], [Cl/H], and [Cr/H] in HD 125455B and we provided a comparison to known abundances for HD 125455.