Hodge 53-47: an early O-type double-lined binary in the Small Magellanic Cloud*

Details Hodge 53-47: an early O-type double-lined binary in the Small Magellanic Cloud* Hodge 53-47: an early O-type double-lined binary in the Small Magellanic Cloud*

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003mnras.341..583m&link_type=abstract

Monthly Notice of the Royal Astronomical Society, Volume 341, Issue 2, pp. 583-588.

Astronomy and Astrophysics

Astronomy

2

Binaries: Close, Binaries: Eclipsing, Binaries: Spectroscopic, Stars: Early-Type, Stars: Fundamental Parameters, Stars: Individual: Hodge 53-47

Scientific paper

We present a spectroscopic and photometric study of the double-lined binary Hodge 53-47 in the Small Magellanic Cloud. We determine for the binary components spectral types of O6 V + O4-5 III(f). Through a simultaneous light and radial velocity curve analysis via the Wilson-Devinney code we find absolute masses of ~26 Msolar and ~16 Msolar and radii of ~10.1 Rsolar and ~8.4 Rsolar for the O6 V and O4-5 III(f) components, respectively. The relatively low mass found for the O4-5 III(f) component suggests that mass transfer and loss have played a significant role in the evolution of these stars.

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