The Carbon Abundance and 12C/13C Isotopic Ratio in the Atmosphere of Arcturus from 2.3 micron CO Bands

Ya. V. Pavlenko

Absorption lines of the 12CO and 13CO molecular bands (Delta v = 2) at 2.29 -- 2.45 micron are modelled in spectrum of Arcturus (K2III). We compute a grid of model atmospheres and…