The Preliminary Atmospheric Parameters of HD 154713 and HD 137928

Abstract

We determined the preliminary atmospheric parameters of the two A type stars HD 154713 and HD 137928. These stars’ high resolution echelle spectra, covering a wavelength range of 3800-7900 A, were obtained from the Coude Echelle Spectrograph attached to the 1.5 m telescope at the TÜBITAK National Observatory on the 24 th of April 2018. We derived the fundamental parameters by making use of photometric calibrations and profiles of hydrogen Balmer lines in our observed spectra. We estimated the metallicity ([Fe/H]) of HD 154713 as 0.41 and HD 137928 0.29. The metallicity value of HD 154713 may indicate it to be an Am star candidate.