The narrow-line quasar IRAS 20181 - 2244: a luminous cousin of NGC 1068?
نویسندگان
چکیده
منابع مشابه
Kinematics of the narrow - line region of NGC 1068 ?
We investigated the kinematics of the Narrow Line Region of NGC 1068. In order to study the kinematics and to determine whether the unusual broad line width can be attributed to motion of NLR clouds in a deep gravitational potential or to expanding shocks, we carried out spatially resolved echelle spectroscopy. High spectral resolution enables the identification of individual clouds in long sli...
متن کاملModelling the Extended Narrow Line Region in NGC 1068
We present photoionization models of the high excitation gas in the Extended Narrow Line Region (ENLR) of NGC 1068. The ENLR line fluxes have been calculated allowing for attenuation of the central-source ionizing continuum as a function of distance from the centre. Diffuse continuum emission from low density ENLR gas is included as an important secondary source of ionization. The observed high...
متن کاملResolved Spectroscopy of the Narrow-Line Region in NGC 1068: Kinematics of the Ionized Gas.
We have determined the radial velocities of the [O iii]-emitting gas in the inner narrow-line region of the Seyfert 2 galaxy NGC 1068, along a slit at position angle 202 degrees, from STIS observations at a spatial resolution of 0&farcs;1 and a spectral resolving power of lambda&solm0;Deltalambda approximately 1000. We use these data to investigate the kinematics of the narrow-line region withi...
متن کاملJet driven motions in the Narrow Line Region of NGC 1068
We have obtained HST FOC f/48 long–slit spectroscopy of the inner 4 arcseconds of the Narrow Line Region of NGC 1068 between 3500-5400Å with a spectral resolution of 1.78Å/pixel. At a spatial scale of 0. 0287 per pixel these data provide an order of magnitude improvement in resolution over previous ground based spectra and allow us to trace the interaction between the radio jet and the gas in t...
متن کاملKinematic and Excitation Structure of the NGC 1068 Narrow-Line Region
We investigated the kinematic and excitation structure of the NGC 1068 narrow-line region (NLR). We obtained profiles of several emission lines, [O III]λ5007, Hβ, [O I]λ6300 and [FeVII]λ6087 at high-velocity resolution (R ∼ 7500 11000), and confirmed that they showed different profiles. These profiles are useful for understanding the NLR structure, as they cover a wide ionization potential rang...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1994
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/268.1.l47