1997A&A...319...52V

Query : 1997A&A...319...52V

1997A&A...319...52V - Astronomy and Astrophysics, volume 31952-66 (1997/3-1)

AGNs with composite spectra.

VERON P., GONCALVES A.C. and VERON-CETTY M.-P.

Abstract (from CDS):

The use of the Baldwin et al. (1981PASP...93....5B) or Veilleux & Osterbrock (1987ApJS...63..295V) diagnostic diagrams allows the unambiguous classification of the nuclear emission line regions of most galaxies into one of three categories: nuclear HII regions or starbursts, Seyfert 2 galaxies and Liners. However, a small fraction of them have a "transition" spectrum. We present spectral observations of 15 "transition" objects at high-dispersion (66Å/mm) around the Hα, [NII]λλ6548,6584 and/or Hβ, [OIII]λλ4959,5007 emission lines. We show that most of these spectra are composite, due to the simultaneous presence on the slit of a Seyfert nucleus and a HII region. Seyfert 2s and Liners seem to occupy relatively small and distinct volumes in the three-dimensional space λ5007/Hβ, λ6584/Hα, λ6300/Hα.

Abstract Copyright: ∼

Journal keyword(s): galaxies: nuclei - galaxies: active - galaxies: Seyfert

Simbad objects: 37

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Number of rows : 37
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 169 SyG 00 36 51.6072915048 +23 59 27.553231968   13.70 13.1     ~ 127 0
2 Mrk 957 Sy1 00 41 53.4322147944 +40 21 17.647820820   15.94 15.14     ~ 109 1
3 LEDA 3938 Sy2 01 06 45.2603399520 +06 38 01.873274352   17       ~ 43 0
4 UM 103 Sy2 01 25 27.7857865222 +03 00 11.153997482   17       ~ 15 0
5 Z 459-57 Sy1 01 27 32.5217343720 +19 10 43.839069600   14.89 14.22     ~ 333 0
6 NGC 613 AGN 01 34 18.235 -29 25 06.56   10.77 12.71 9.50 10.6 ~ 446 3
7 MCG-02-05-022 Sy2 01 37 06.9553906656 -09 08 57.356220732   16.17 15.56     ~ 39 1
8 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
9 Mrk 609 Sy2 03 25 25.3590639624 -06 08 37.947546528   14.72 14.12 10.9   ~ 212 0
10 NGC 1672 SyG 04 45 42.552 -59 14 50.68 10.29 10.53 9.68 9.53 10.2 ~ 461 2
11 3C 184.1 Sy2 07 43 01.3778005643 +80 26 26.042651834     17.0     ~ 190 1
12 4C 06.30 rG 08 22 31.9510001544 +05 57 06.787089972   18.04 17.33     ~ 133 1
13 NGC 2782 Sy2 09 14 05.11967 +40 06 49.6800 12.29 12.30 11.63     ~ 494 3
14 NGC 3367 Sy1 10 46 34.9528432440 +13 45 03.081157488 11.89 12.05 11.50     ~ 285 1
15 IRAS 11058-1131 Sy1 11 08 20.2866383856 -11 48 11.925996012   16.30       ~ 60 0
16 Z 243-24 Sy2 11 53 41.7732361680 +46 12 42.174375120   16.24 15.45     ~ 224 0
17 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 1084 1
18 Z 73-74 Sy2 13 47 04.3567576992 +11 06 22.663156500   15.5       ~ 72 0
19 Z 273-23 Sy2 14 40 38.0960806920 +53 30 15.961505184   16.05 15.03     ~ 341 1
20 Z 134-43 Sy2 14 50 37.8500235408 +22 44 03.576974676   15.7       ~ 87 0
21 NGC 5953 Sy2 15 34 32.40240 +15 11 37.7990   13.23 12.45     ~ 389 1
22 IC 1182 rG 16 05 36.7963581312 +17 48 07.422094440   16.20 15.19     ~ 167 0
23 NGC 6221 Sy2 16 52 46.329 -59 13 00.99   10.90 13.45 9.68 10.4 ~ 328 0
24 Z 112-10 Sy2 17 35 33.7558321464 +20 47 47.042181276   14.8 16.2     ~ 36 0
25 Mrk 507 Sy1 17 48 38.33640 +68 42 16.0560   16.33 15.45     ~ 157 1
26 Z 142-19 SyG 18 12 14.0639267040 +21 53 05.260053516   14.98 14.21     ~ 23 0
27 NGC 7130 Sy2 21 48 19.5412287192 -34 57 04.492024884   12.86 13.87 11.57   ~ 483 1
28 IRAS 22017+0319 Sy2 22 04 19.1643461808 +03 33 51.253679232     15.4     ~ 97 0
29 MCG-03-57-017 Sy1 22 31 25.474 -19 02 04.27   14.27 13.73 12.90   ~ 123 1
30 Z 452-43 SyG 22 41 55.9547870544 +20 15 41.376301128   15.28 14.65     ~ 65 0
31 NGC 7496 Sy2 23 09 47.2876854912 -43 25 40.279652796   11.92 13.90 10.95 11.5 ~ 350 1
32 NGC 7591 SyG 23 18 16.2727927344 +06 35 09.108933504   13.8       ~ 285 1
33 NGC 7592W Sy2 23 18 21.8077569718 -04 24 56.904279971     15.0     ~ 175 0
34 NGC 7592 IG 23 18 22.2 -04 24 57           ~ 177 0
35 NGC 7592E Sy2 23 18 22.61713 -04 24 58.0680   14.16 13.56     ~ 39 0
36 NGC 7582 Sy2 23 18 23.60 -42 22 13.3 11.62 10.92 10.62     ~ 978 3
37 LEDA 90429 SyG 23 39 01.26960 +36 21 08.5896   16.17       ~ 232 1

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