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Simultaneous IR and optical light curves of 2A0311−227
The complex wavelength dependence shown by the light curves of the AM Herculis type binaries such as 2A0311−227 (EFERI) and AM Her itself has led to suggestions that accretion occurs onto both magnetic poles of the white ...
The AM Herculis type binary E1405-451
The authors report photometry and polarimetry of the AM Her-type binary E1405-451. For the first time circular polarization has been detected in such an object at wavelengths longer than 1 μm. The light curves and polarization ...
Optical and IR light curves of VV Puppis
Optical (0.36-0.6 micron) light curves with time resolutions of seconds, and infrared (IR) (1.25-2.2 microns) light curves with time resolutions of minutes, are presented for VV Puppis during a high state. The optical light ...
The wavelength dependence of polarization in BL Lac objects
Accurate polarization measurements of six BL Lac objects and one highly polarized QSO have been obtained simultaneously at optical and near-infrared wavelengths. The polarizations observed in the infrared are generally ...