Physical Properties and Evolution of the Eclipsing Binary System XZ Canis Minoris

Details Physical Properties and Evolution of the Eclipsing Binary System XZ Canis Minoris Physical Properties and Evolution of the Eclipsing Binary System XZ Canis Minoris

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1263..197p&link_type=abstract

INTERNATIONAL CONFERENCE ON PHYSICS EDUCATION: ICPE-2009. AIP Conference Proceedings, Volume 1263, pp. 197-200 (2010).

Physics

Physics Education

Research Initiatives, Teaching Demonstrations, Physics, Photometry, Research In Physics Education, Teaching Methods And Strategies, Science In School, Photometric, Polarimetric, And Spectroscopic Instrumentation

Scientific paper

This research aims to study the eclipse binary system so that its physical properties and evolution can be determined and used as an example to teach high school astronomy. The study of an eclipsing binary system XZ Canis Minoris (XZ CMi) was done at Sirindhorn Observatory, Chiang Mai University using a 0.5-meter reflecting telescope with CCD photometric system (2184×1417 pixel) in B V and R bands of UVB System. The data obtained were used to construct the light curve for each wavelength band and to compute the times of its light minima. New elements were derived using observations with linear to all available minima. As a result, linear ephemeris is HDJmin I = .578 808 948+/-0.000 000 121+2450 515.321 26+/-0.001 07 E, and the new orbital period of XZ CMi is 0.578 808 948+/-0.000 000 121 day. The values obtained were used with the previously published times of minima to get O-C curve of XZ CMi. The result revealed that the orbital period of XZ CMi is continuously decreased at a rate of 0.007 31+/-0.000 57 sec/year. This result indicates that the binary stars are moving closer continuously. From the O-C residuals, there is significant change to indicate the existence of the third body or magnetic activity cycle on the star. However, further analysis of the physical properties of XZ CMi is required.

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