The Parsec-scale Structure, Kinematics, and Polarization of Radio-Loud
  Narrow-Line Seyfert 1 Galaxies
  Several narrow-line Seyfert 1 galaxies (NLS1s) have now been detected in
gamma rays, providing firm evidence that at least some of this class of active
galactic nuclei (AGN) produce relativistic jets. The presence of jets in NLS1s
is surprising, as these sources are typified by comparatively small black hole
masses and near- or super-Eddington accretion rates. This challenges the
current understanding of the conditions necessary for jet production. Comparing
the properties of the jets in NLS1s with those in more familiar jetted systems
is thus essential to improve jet production models. We present early results
from our campaign to monitor the kinematics and polarization of the
parsec-scale jets in a sample of 15 NLS1s through multifrequency observations
with the Very Long Baseline Array. These observations are complemented by
fast-cadence 15 GHz monitoring with the Owens Valley Radio Observatory 40m
telescope and optical spectroscopic monitoring with with the 2m class telescope
at the Guillermo Haro Astrophysics Observatory in Cananea, Mexico.
