Emission lines for SDSS Coronal-Line Forest AGNs Virtual Observatory Resource

Authors
  1. Rose M.
  2. Elvis M.
  3. Tadhunter C.N.
  4. Published by
    CDS
Abstract

We introduce Coronal-Line Forest active galactic nuclei (CLiF AGN), AGN which have a rich spectrum of forbidden high-ionization lines (FHILs, e.g. [FeVII], [FeX] and [NeV]), as well as relatively strong narrow (~300 km/s) H{alpha} emission when compared to the other Balmer transition lines. We find that the kinematics of the CLiF emitting region are similar to those of the forbidden low-ionization emission-line (FLIL) region. We compare emission line strengths of both FHILs and FLILs to cloudy photoionization results and find that the CLiF emitting region has higher densities (10^4.5^<n_H_<10^7.5^/cm^3^) when compared to the FLIL emitting region (10^3.0^<n_H_<10^4.5^/cm^3^). We use the photoionization results to calculate the CLiF regions radial distances (0.04<R_CLiF_<32.5 pc) and find that they are comparable to the dust grain sublimation distances (0.10<R_SUB_<4.3 pc). As a result, we suggest that the inner torus wall is the most likely location of the CLiF region, and the unusual strength of the FHILs is due to a specific viewing angle giving a maximal view of the far wall of the torus without the continuum being revealed.

Keywords
  1. active-galactic-nuclei
  2. spectroscopy
  3. line-intensities
Bibliographic source Bibcode
2015MNRAS.448.2900R
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/448/2900
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/448/2900
Document Object Identifer DOI
doi:10.26093/cds/vizier.74482900

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/448/2900
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/448/2900
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/448/2900
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/448/2900/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/448/2900/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/448/2900/table1?

History

2017-12-05T08:12:40Z
Resource record created
2017-12-05T08:12:40Z
Created
2024-08-14T20:20:26Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr