IALP   13078
INSTITUTO DE ASTROFISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
The Massive ZAMS O-type binary system FO15 in the Carina Nebula.
Autor/es:
E. FERNÁNDEZ LAJÚS; V. NIEMELA.
Lugar:
Praga, Rep. Checa.
Reunión:
Jornada; Calibrating the Top of the Stellar M-L Relation, 26th meeting of the IAU, Joint Discussion 5; 2006
Institución organizadora:
International Astronomical Union
Resumen:
We present a high precision light curve for the massive eclipsing binary
system FO15, located in an optically obscured area in the Carina Nebula,
where ongoing star formation is observed. Using previously published
radial velocity data, the light curve is analyzed using the
Wilson-Devinney code. We find that the physical parameters of the
components of the FO15 binary system correspond to stars which have just
arrived to the ZAMS, i.e. smaller radii and lower luminosities than
"normal" galactic O-type stars.