Polarization in lines - a new method for measuring black hole masses in
  active galaxies
  Measuring of the masses of galactic supermassive black holes (SMBHs) is an
important task, since they correlate with the host galaxy properties and play
an important role in evolution of galaxies. Here we present a new method for
measuring of SMBH masses using the polarization of the broad lines emitted from
active galactic nuclei (AGNs). We performed spectropolarometric observations of
9 AGNs and find that this method gives measured masses which are in a good
agreement with reverberation measurements. An advantage of this method is that
it can be used to measure the masses of SMBHs in a consistent way at different
cosmological epochs.
