J/ApJ/549/155 [OIII] emission in a sample of AGNs (Nagao+, 2001)
Where is the [O III] λ4363 emitting region in active galactic nuclei?
Nagao T., Murayama T., Taniguchi Y.
<Astrophys. J., 549, 155-171 (2001)>
=2001ApJ...549..155N 2001ApJ...549..155N
ADC_Keywords: Active gal. nuclei ; QSOs ; Infrared sources
Keywords: galaxies: active - galaxies: nuclei - galaxies: Seyfert -
quasars: emission lines
Abstract:
The emission-line flux ratio of [OIII]4363/[OIII]5007 (ROIII) is a
useful diagnostic for the ionization mechanism and physical properties
of emission-line regions in active galactic nuclei (AGNs). However, it
is known that simple photoionization models underpredict the
[OIII]4363 intensity, being inconsistent with observations. In this
paper we report on several pieces of evidence that a large fraction of
the [OIII]4363 emission arises from the dense gas obscured by
putative tori: (1) the visibility of high-ROIII regions is
correlated to that of broad-line regions, (2) higher ROIII objects
show hotter mid-infrared colors, (3) higher ROIII objects show
stronger highly ionized emission lines such as [FeVII] 6087 and
[FeX]6374, and (4) higher ROIII objects have broader line width of
[OIII]4363 normalized by that of [OIII]5007.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 129 214 The Properties of the Objects in Our Sample
refs.dat 66 49 References
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See also:
II/156 : IRAS Faint Source Catalog, |b|>10, Version 2.0 (Moshir+ 1989)
VII/207 : Quasars and Active Galactic Nuclei (8th Ed.) (Veron+ 1998)
J/ApJS/172/456 : [OII] emitting galaxies in COSMOS+SDF fields (Takahashi+ 2007)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- MType AGN type (see Veron-Cetty & Veron, 1998,
Cat. VII/207)
13- 27 A15 --- Name Galaxy name
29- 50 A22 --- OName Other name
52- 57 F6.4 --- z Redshift
59- 64 F6.4 --- ROIII Emission-line ratio of [OIII] 4363/5007
66- 88 A23 --- r_ROIII References for ROIII, in refs.dat file
90- 95 F6.4 Jy F3.5um ? The 3.5µm flux density
97-102 A6 --- r_F3.5um References for F3.5um, in refs.dat file
104 A1 --- l_F12um Limit flag on F12um
105-111 F7.4 Jy F12um ? The 12µm IRAS flux density (1)
113 A1 --- l_F25um Limit flag on F25um
114-120 F7.4 Jy F25um ? The 25µm IRAS flux density (1)
122-129 F8.4 Jy F60um ? The 60µm IRAS flux density (1)
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Note (1): Data from Moshir et al. (1992, Cat. II/156)
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 7 A7 -- Ref Reference code
9- 27 A19 --- BibCode BibCode
29- 66 A38 --- Aut Author's name
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 20-Oct-2008