Roche Model and Absolute Dimensions of the Eclipsing Binary Y Cam with a Pulsating Component

Details Roche Model and Absolute Dimensions of the Eclipsing Binary Y Cam with a Pulsating Component Roche Model and Absolute Dimensions of the Eclipsing Binary Y Cam with a Pulsating Component

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jass...19..187l&link_type=abstract

Journal of Astronomy and Space Science, vol. 19, no. 3, p. 187-196

Astronomy and Astrophysics

Astronomy

1

Eclipsing Binary, Photometry, Roche Model, Absolute Dimension

Scientific paper

We performed CCD photometric observations of the eclipsing binary Y Cam with a pulsating component, for 16 nights from November 2000 to May 2001 using a V filter attached to the 61-cm reflector at Sobaeksan Optical Astronomy Observatory. Our V light curve and Broglia & Marin's (1974) BV ones were analyzed with Mode 2 for a detached Roche model as well as Model 5 for a semi-detached one in the Wilson-Devinney code. From the analysis, we found the following results: 1) It is hardly discernible from only light curve synthesis which model between the detached and semi-detached ones is a real Roche model of Y Cam. 2) There exist the third light of about 2% and 3% in B and V light curves of Y Cam, respectively. 3) The light curve solution is immune from the light variation due to the pulsation of the primary component of Y cam. However, the detached model rather than the semi-detached one has slightly better fitted to the observations which were get rid of the pulsation effect. 4) The absolute dimensions of Y Cam were calculated for two Roche models.

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