The Fundamental Parameters of Two A-Type Stars HD 2924 and HD 4321
34th International Physics Congress (IPS) of the Turkish-Physical-Society (TPS), Konacik, Türkiye, 5 - 09 Eylül 2018, cilt.2042, (Tam Metin Bildiri)
- 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.