KU CYG - The Algol-type binary with an accretion disk

Details KU CYG - The Algol-type binary with an accretion disk KU CYG - The Algol-type binary with an accretion disk

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aca....42..355z&link_type=abstract

Acta Astronomica (ISSN 0001-5237), vol. 42, no. 4, p. 355-361.

Astronomy and Astrophysics

Astronomy

9

Accretion Disks, Eclipsing Binary Stars, Light Curve, Stellar Mass, Stellar Models, Stellar Spectra

Scientific paper

Four color photometric data of KU Cyg, an Algol-type eclipsing binary containing an accretion disk, obtained by Olson, were analyzed in order to obtain the physical parameters of the components of the system and of the accretion disk. Light curve analysis was performed using a model of a binary containing an accretion disk around the primary star. The primary star was found to have temperature of about 10,300 K, radius of about 3.2 solar radii and mass of about 2.6 solar masses. The secondary star is less massive (0.6 solar masses) and has the radius of about 18 solar radii. The radius of the disk is about 32 solar radii which is about 90 percent of the primary star Roche lobe. The primary star parameters indicate that it is close to the main sequence.

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