The Fundamental Parameters of Two A-Type Stars HD 2924 and HD 4321

ÇALIŞKAN TÜRKSOY Ş., ELMASLI AKÇAR A., Nasolo Y.

34th International Physics Congress (IPS) of the Turkish-Physical-Society (TPS), Konacik, Türkiye, 5 - 09 Eylül 2018, cilt.2042 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 2042
  • Doi Numarası: 10.1063/1.5078936
  • Basıldığı Şehir: Konacik
  • Basıldığı Ülke: Türkiye
  • Ankara Üniversitesi Adresli: Evet

Özet

We present atmospheric parameters for HD 2924 and HD 4321: effective temperature, surface gravity, microturbulence, and metallicity. The spectra were obtained at the TUBITAK National Observatory using the Coude echelle spectrograph attached to the 1.5 m telescope. The model atmospheres were calculated by using the ATLAS9 code. We derived T-eff and log g values using excitation and ionization equilibrium of iron lines and by fitting H beta profiles of LTE model spectra to the observed ones. The metallicities and microturbulence velocities were measured from equivalent widths of the iron lines in the observed spectra.