HD 15558 : AN EXTREMELY LUMINOUS O-TYPE BINARY STAR.

Autor: Garmany, C. D., Massey, P.
Zdroj: Publications of the Astronomical Society of the Pacific; August 1981, Vol. 93 Issue: 554 p500-503, 4p
Abstrakt: An orbital solution for the single-line binary HD 15558, an O5fstar in the association IC 1805, is presented. The period is 440d, the longest of any O-type spectroscopic binary, and e = 0.54. This star is one of the most luminous stars in the Galaxy and in the theoretical H-R diagram it lies near the track corresponding to stars with initial masses of 100 solar masses.
Databáze: Supplemental Index