I Zwicky 1: Decomposition and dynamics of the nearby QSO host
Abstract
We address current theories of research on morphology, environment and evolution of active galaxies in the form of a detailed case study of the nearby QSO host I Zw 1. This study is based on sub-kpc resolution ¹²CO(1-0) observations with the BIMA mm-interferometer and on near-infrared imaging with ISAAC at the VLT. The ¹²CO(1-0) maps reveal a circumnuclear molecular gas ring with a radius of 0.9 kpc. The imaging data in the J-band are analyzed with respect to a disk-bulge decomposition. Together with a model of the gas rotation curve, the radial profile of the dynamical J-band mass-to-light ratio (M/L) is discussed. The J-band images give new evidence for an interaction between I Zw 1 and its nearby companion. First results from a sequence of N-body simulations for an extensive test of the parameter space of the interaction are presented.
Additional Information
© 2003 Kluwer Academic Publishers.Additional details
- Eprint ID
- 100193
- DOI
- 10.1023/a:1024012528834
- Resolver ID
- CaltechAUTHORS:20191204-153240681
- Created
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2019-12-04Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field