Journal article
Integral Field Spectroscopy of the Extended Emission-Line Region of 3C 249.1
The Astrophysical journal, Vol.650(1 I), pp.80-87
06/21/2006
DOI: 10.1086/507418
Abstract
Astrophys.J.650:80-87,2006 We present Gemini Multiobject Spectrograph integral field spectroscopy of the
extended emission-line region associated with quasar 3C 249.1. The kinematics
of the ionized gas measured from the [O III] $\lambda$5007 line is rather
complex and cannot be explained globally by a simple dynamical model, but some
clouds can be modeled individually as having locally linear velocity gradients.
The temperatures of the ionized gas appear uniform (varying from ~12000 to
15000 K), while the densities vary from a few tens to a few hundreds cm^{-3}.
The emission mechanism of all of the emission clouds, as indicated by the
line-ratio diagnostics, is consistent both with "shock + precursor" and pure
photoionization models. The total mass of the ionized gas is on the order of
10^9 M_Sun. We estimate the bulk kinetic energy and momentum of the extended
emission-line region of 2.5*10^{57} ergs and 10^{50} dyne s, and a dynamical
timescale of ~10 Myr. By comparing the injection rates of kinetic energy and
momentum of different galactic wind models with the observation, we argue that
the emission-line clouds are most likely a direct result from the feedback of
the quasar. We also discuss the nature of the extended X-ray emission
surrounding the quasar.
Details
- Title: Subtitle
- Integral Field Spectroscopy of the Extended Emission-Line Region of 3C 249.1
- Creators
- Hai Fu - IfA HawaiiAlan Stockton - IfA Hawaii
- Resource Type
- Journal article
- Publication Details
- The Astrophysical journal, Vol.650(1 I), pp.80-87
- DOI
- 10.1086/507418
- ISSN
- 0004-637X
- eISSN
- 1538-4357
- Publisher
- University of Chicago Press
- Language
- English
- Date published
- 06/21/2006
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984200029702771
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