Spectrographic Study of the Eclipsing Binary System SZ Camelopardalis
Abstract
Thirteen high-dispersion spectrographs of the eclipsing binary star SZ Cam have been studied with a view of determining more accurate information on: (i) the spectral type and luminosity classifications, (ii) absolute parameters for the component stars, (iii) the stellar environment of SZ Cam. The main results in these categories are as follows: (i) O9.5 Vnk, (ii)m g=19±2M ⊙,m s=6.5±1M ⊙;r g=9.7±3.6R ⊙,r s=4.8±1.7R ⊙;T e∼30000 K,T e∼23000 K; (iii) there is a local concentration of absorbing material which may reach a density of 2M ⊙ pc-3, and the distance of the star is found to be 600±150 pc. The determined overluminosity of the secondary star and the local concentration of absorbing material are two topics which provide the basis for a discussion section.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- September 1975
- DOI:
- 10.1007/BF00645258
- Bibcode:
- 1975Ap&SS..36..329B