The Innermost Regions of Relativistic Jets and Their Magnetic Fields. Granada (Spain). June 10th-14th, 2013.

Erika, Benítez

Optical Photopolarimetric Monitoring of WComae.


Author list: E. Benítez, M. Sorcia, D. Hiriart


In this poster we present our main results of the analysis done to our optical polarization monitoring of W Comae from 2008-2012. Data were obtained with POLIMA, a single-beamed polarizer using the R-band filter, attached to the 84cm telescope at San Pedro Martir Observatory (Mexico). In particular, we found that the IBL WComae shows the presence of two polarized components. One stable and the other variable. The stable component shows a linear polarization degree of ~10%. We observed a rotation of the position angle larger than 180 degrees during the outburst of 2008. The maximum observed linear polarization for this source is ~21%. A general trend of decreasing brightness during the monitored period was observed. The maximum $R$-band mag is ~14.25 and the minimum is ~15.68. We will also present estimations of some parameters associated with the relativistic jet of this source, that were derived from our observational data.