papers
Publications (2)
astro-ph.CO2009
Variability and stability in blazar jets on time scales of years: Optical polarization monitoring of OJ287 in 2005-2009
C. Villforth, K. Nilsson, J. Heidt +45
(Abridged) OJ287 is a BL Lac object that has shown double-peaked bursts at regular intervals of ~12 yr during the last ~40 yr. We analyse optical photopolarimetric monitoring data…
astro-ph.CO2010
On the black hole mass - velocity dispersion relation for type-1 and type-2 AGN
K. M. Dasyra, B. M. Peterson, L. J. Tacconi +7
We present results from infrared spectroscopic projects that aim to test the relation between the mass of a black hole, M_BH, and the velocity dispersion of the stars in its host-g…