Fitting of Silicon lines in UV and Balmer Hδ Line in Optical Spectra of B supergiant HD 198478
Abstract
Atmospheric parameters of the Galactic early B-supergiant HD 198478 (55 Cyg) were determined from the UV silicon lines and optical Balmer Hδ 4101 Å line. TLUSTY synthetic spectra were broadened using the ROTIN numerical code in order to determine effective temperature, surface gravity, rotational and macroturbulent velocity.
- Publication:
-
From Interacting Binaries to Exoplanets: Essential Modeling Tools
- Pub Date:
- April 2012
- DOI:
- 10.1017/S1743921311027529
- Bibcode:
- 2012IAUS..282..263J
- Keywords:
-
- line: profiles;
- stars: fundamental parameters;
- stars: supergiants