Bibcode
                                    
                            DOI
                                    
                            Arevalo, M. J.; Lazaro, C.
    Referencia bibliográfica
                                    Astronomical Journal (ISSN 0004-6256), vol. 99, March 1990, p. 983-994.
Fecha de publicación:
    
                        3
            
                        1990
            
  Número de citas
                                    17
                            Número de citas referidas
                                    17
                            Descripción
                                    Infrared J and K light curves of two RS CVn short-period systems, XY UMa
and WY Cnc, are presented. Both systems show similar variability in the
infrared to that observed in the visual. From the colors an infrared
excess is inferred for the primary component of both systems. A new
determination of their geometrical elements is presented and the
resulting parameters are compared to those previously obtained from
visible photometry. The light curves show peculiarities that may
indicate the presence of gas streams in the systems.