J/A+A/355/89 Classification of emission-line gal. (Dessauges-Zavadsky 2000)
Spectral classification of emission-line galaxies
Dessauges-Zavadsky M., Pindao M., Maeder A., Kunth D.
<Astron. Astrophys. 355, 89 (2000)>
=2000A&A...355...89D 2000A&A...355...89D
ADC_Keywords: Galaxies, spectra; Spectroscopy
Keywords: catalogs - HII regions - galaxies: active - galaxies: Seyfert -
galaxies: starburst
Description:
The main goal of this work was to further investigate the
classification of emission-line galaxies from the "Spectrophotometric
Catalogue of HII galaxies" by Terlevich et al. (1991, Cat.
J/A+AS/91/285) in a homogeneous and objective way, using the three
line-ratio diagrams of Veilleux & Osterbrock (1987ApJS...63..295V 1987ApJS...63..295V).
The re-measurements of the most important nebular lines and a revised
classification are presented for 314 narrow-emission-line galaxies
(represented by 405 spectra) from Terlevich's et al. (1991, Cat.
J/A+AS/91/285) catalogue. The revised catalogue contains 267 HII
galaxies, 25 Seyfert2 galaxies, 3 LINERs, 4 "revised" galaxies, 13
"transition" galaxies and 2 "ambiguous" galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 84 405 Catalogue of narrow-emission-line galaxies with
the emission-line intensities of the most
important nebular lines relative to Hβ
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See also:
J/A+AS/91/285 : HII galaxies spectrophotometric catalogue (Terlevich+, 1991)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Galaxy Name of the galaxy
17 A1 --- n_Galaxy [*] *: unknown exact name and position of
the galaxy
19- 34 A16 --- Name Other name of the galaxy
36- 43 A8 --- Class Classification of the galaxy (1)
46- 50 F5.3 --- [OI] ? [OI]λ6300/Hβ line-ratio
53- 57 F5.3 --- [NII] ? [NII]λ6584/Hβ line-ratio
59- 64 F6.3 --- [SII] ? [SII](λ6717+λ6731)/Hβ
line-ratio
66- 71 F6.3 --- Ha H{alpha λ6563/Hβ line-ratio
73- 78 F6.3 --- [OIII] Line-ratio [OIII]λ5007/Hβ
80- 84 F5.3 --- [OII] ? [OII](λ3726+λ3729)/Hβ
line-ratio
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Note (1): The notation is as follows:
HII = HII galaxy
Sy2 = Seyfert 2 galaxy
Rev(...) = "revised" galaxy with (...) = it's defined nature (a galaxy which
classification is in contradiction with the one indicated by
Terlevich et al. (1991, Cat. J/A+AS/91/285) or by the
NASA/IPAC Extragalactic Database)
Trans = "transition" galaxy (a galaxy located at about ±0.15 from the
empirical boundaries in the diagnostic diagrams of Veilleux &
Osterbrock, 1987ApJS...63..295V 1987ApJS...63..295V)
Amb = "ambiguous" galaxy (a galaxy classified both as a HII galaxy and
an AGN in different diagnostic diagrams of Veilleux &
Osterbrock, 1987ApJS...63..295V 1987ApJS...63..295V)
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Acknowledgements: Mirka Zavadsky
History:
* 13-Jan-2000: original version
* 22-Dec-2000: A new version of the tables, containing the
cross-identifications, was provided by the authors.
(End) Patricia Bauer [CDS] 13-Jan-2000