The Parsec-scale Structure, Kinematics, and Polarization of Radio-Loud Narrow-Line Seyfert 1 Galaxies

Bibliographic Details
Title: The Parsec-scale Structure, Kinematics, and Polarization of Radio-Loud Narrow-Line Seyfert 1 Galaxies
Authors: Richards, J. L., Lister, M. L., Savolainen, T., Homan, D. C., Kadler, M., Hovatta, T., Readhead, A. C. S., Arshakian, T. G., Chavushyan, V.
Publication Year: 2014
Collection: Astrophysics
Subject Terms: Astrophysics - Astrophysics of Galaxies, Astrophysics - High Energy Astrophysical Phenomena
More Details: 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.
Comment: 4 pages, 1 figure. To appear in the Proceedings of the IAU Symposium No. 313: "Extragalactic jets from every angle," Galapagos, Ecuador, 15-19 September 2014, F. Massaro, C. C. Cheung, E. Lopez, and A. Siemiginowska (Eds.), Cambridge University Press
Document Type: Working Paper
DOI: 10.1017/S1743921315002070
Access URL: http://arxiv.org/abs/1411.1058
Accession Number: edsarx.1411.1058
Database: arXiv
More Details
DOI:10.1017/S1743921315002070