Resumen

MICHEL, R. et al. Photometric Study of Two Contact Binary Systems and a Detached Late Dwarf + M Dwarf Components. Rev. mex. astron. astrofis [online]. 2023, vol.59, n.1, pp.123-135.  Epub 21-Oct-2024. ISSN 3061-8649.  https://doi.org/10.22201/ia.01851101p.2023.59.01.09.

The results of our study of the eclipsing binary systems AF LMi, CzeV188 and CRTS J073333.0+302556 based on new CCD B, V, RC , IC complete light curves, are here presented. The short periods of these systems are confirmed and revised. The light curves were modeled using the latest version of the Wilson-Devinney code and, as a result, we found that AF LMi (G3+G9) and CzeV188 (K0+K1) are W UMa-type contact binary systems belonging to the W subclass, showing a shallow degree of fill-out with components in good thermal contact. CRTS J073333.0+302556 is a detached binary system composed by a late dwarf (K8) and an M6 dwarf spectral type components. The asymmetries of the light curves were accounted for with a spot on the surface of one of the component. The absolute elements of the three objects were estimated.

Palabras llave : binaries; AF LMi; CzeV188; CRTS J073333.0+302556 — techniques.

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