Photopolarimetric observations of the sample of polar candidates

Resumo

We presented the first polarimetric observations of five cataclysmic variables: MTDra, 1RXSJ184542.4+483134, CRTSCSS081231 J071126+440405, IPHASJ052832.69+283837.6, and CRTSCSS130604 J215427+155714. Observations in the V band have shown that all the objects are highly circularly polarized. All the objects except the last one change the polarization sign during the orbital period. The object 1RXSJ184542.4+483134 was observed in two brightness states in 2011 and 2012. The brightness decrease of the systemwas accompanied by the increase of the amplitude of circular polarization variation.