The signature of high velocity gas in the spectra of NGC 4151

Preprint

7 February 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0202146

Abstract

The multiwavelength emission spectrum and associated velocity field of the Seyfert prototype NGC 4151 is modeled. HST data has impressively revealed the existence of a large range of velocities (100 - 1500 \kms) dominating the emitting clouds in the extended emission line region of the galaxy. Following this observational result, a revision of the photoionization modeling approach applied to NGC 4151 is presented. It is concluded that a mixture of radiation dominated clouds and shock dominated clouds are required to explain the multiwavelength line and continuum spectra of the galaxy.

Keywords

MULTIWAVELENGTH EMISSION
ASSOCIATED VELOCITY
EMISSION SPECTRUM
DOMINATED CLOUDS
HIGH VELOCITY
VELOCITY GAS
GALAXY
NGC

All Related Versions

Version 1, 2002-02-07, ArXiv
Published version: Astronomy & Astrophysics, 386 (2), 399.

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