2009MNRAS.393..846V

Query : 2009MNRAS.393..846V

2009MNRAS.393..846V - Mon. Not. R. Astron. Soc., 393, 846-857 (2009/March-1)

The CaT strength in Seyfert nuclei revisited: analysing young stars and non-stellar light contributions to the spectra.

VEGA L.R., ASARI N.V., CID FERNANDES R., GARCIA-RISSMANN A., STORCHI-BERGMANN T., GONZALEZ DELGADO R.M. and SCHMITT H.

Abstract (from CDS):

In a former paper, we have presented spectra of 64 active, nine normal and five starburst galaxies in the region around the near-infrared calcium triplet (CaT) absorption lines and the [Siii]λ9069 line. In the present paper, we analyse the CaT strength (WCaT) and kinematical products derived in that study, namely stellar (σ*) and ionized gas (σgas) velocity dispersions. Our main results may be summarized as follows. (1) Type 2 Seyfert galaxies show no sign of dilution in WCaT with respect to the values spanned by normal galaxies, even when optical absorption lines such as the Caii K band at 3933 Å are much weaker than in old, bulge-like stellar populations. (2) The location of type 2 Seyfert galaxies in the WCaT-WCaK plane is consistent with evolutionary synthesis models. The implication is that the source responsible for the dilution of optical lines in these active galactic nuclei (AGN) is a young stellar population, rather than an AGN featureless continuum, confirming the conclusion of the pioneer study of Terlevich, Díaz & Terlevich. (3) In type 1 Seyfert galaxies, both W[Siii] and WCaTtend to be diluted due to the presence of a non-stellar component, in agreement with the unification paradigm. (4) A comparison of σ* with σgas(obtained from the core of the [Siii] emitting line) confirms the existence of a correlation between the typical velocities of stars and clouds of the narrow line region. The strength and scatter around this correlation are similar to those previously obtained from the [Oiii]λ5007 linewidth.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): galaxies: kinematics and dynamics - galaxies: nuclei - galaxies: Seyfert - galaxies: stellar content

Simbad objects: 81

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Number of rows : 81
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 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
2 NGC 262 Bla 00 48 47.14147900 +31 57 25.0845702 14.04 13.90 13.06 8.53   ~ 778 2
3 NGC 449 Sy2 01 16 07.2105079530 +33 05 21.649015602   15.90 14.96     ~ 302 4
4 NGC 526 Sy2 01 23 54.3772245792 -35 03 55.710850788   14.76 14.60 13.46   ~ 354 2
5 NGC 526B Sy2 01 23 57.0756833232 -35 04 09.451026408   15.14 14.5 13.79   ~ 28 0
6 Z 386-35 Sy1 01 43 57.7777898304 +02 20 59.531401716   14.90 14.07     ~ 569 1
7 ICRF J015002.6-072548 Sy1 01 50 02.6975795592 -07 25 48.453672360   16.86 15.62 15.62   ~ 162 1
8 Z 412-46 Sy2 01 55 22.0278511032 +06 36 42.434344476   14.449 13.619 13.090 12.381 ~ 157 0
9 NGC 1019 Sy1 02 38 27.4157281584 +01 54 27.757234728   15.71 14.95     ~ 78 0
10 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
11 IC 1854 Sy1 02 49 20.6915840376 +19 18 14.440530996   15.86 14.81     ~ 119 0
12 NGC 1125 Sy2 02 51 40.44 -16 39 02.4   13.98 13.13 12.48   ~ 158 1
13 NGC 1140 AGN 02 54 33.5271666624 -10 01 43.142143908 12.41 12.84 12.49 13.6 13.5 ~ 303 1
14 NGC 1142 Sy2 02 55 12.2311509144 -00 11 00.807149472   15.42 14.41     ~ 350 1
15 Z 524-40 Sy2 02 59 58.5970307633 +36 49 13.808979663   14.89 13.96     ~ 369 1
16 MCG-02-08-039 Sy1 03 00 30.6274872888 -11 24 57.031067052   14 14.3 13.45   ~ 110 0
17 NGC 1241 Sy2 03 11 14.6195456232 -08 55 18.775959888 12.07 12.84 11.99 12.7 12.5 ~ 221 2
18 Z 540-64 Sy2 03 15 01.4292441960 +42 02 08.825019072   15.05 14.18 12.54   ~ 202 1
19 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
20 NGC 1380 Sy2 03 36 27.590 -34 58 34.68 11.32 10.94 9.93 9.37   ~ 460 1
21 NGC 1386 Sy1 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 553 1
22 NGC 1433 Sy2 03 42 01.4847418992 -47 13 18.929092656   10.84 9.99 9.61 10.2 ~ 447 0
23 NGC 1569 rG 04 30 49.186 +64 50 52.52 11.72 11.86 11.03     ~ 1297 3
24 NGC 1672 SyG 04 45 42.552 -59 14 50.68 10.29 10.53 9.68 9.53 10.2 ~ 461 2
25 IRAS 04502-0317 Sy2 04 52 44.5394406960 -03 12 57.133972800   15.80 15.0 14.85   ~ 59 0
26 NGC 1808 Sy2 05 07 42.343 -37 30 46.98 11.05 10.80 9.94 9.36 10.2 ~ 756 3
27 ESO 362-8 Sy2 05 11 09.098 -34 23 36.74   13.62 12.65 12.46   ~ 81 0
28 MCG-05-13-017 Sy2 05 19 35.8118941104 -32 39 27.923120568   13.81 13.37 12.73   ~ 274 1
29 NGC 2110 Sy2 05 52 11.3768668776 -07 27 22.507465392   14.77 13.51 11.86   ~ 712 1
30 Z 232-3 Sy1 05 54 53.6080860768 +46 26 21.624853488   15.37 14.62     ~ 563 3
31 Z 329-24 Sy2 06 15 36.2812259376 +71 02 14.837219808 14.21 14.03 12.97     ~ 960 2
32 Z 308-30 Sy1 06 32 47.1727076376 +63 40 25.283595072   13.3       ~ 114 0
33 Z 235-30 Sy1 07 42 32.8210670808 +49 48 34.783809768   14.74 14.27     ~ 769 1
34 Mrk 78 Sy2 07 42 41.7033384240 +65 10 37.447730076   15.57 14.58     ~ 386 3
35 Z 31-36 Sy2 08 04 05.8608218112 +05 06 49.823376120   14.55 13.7     ~ 340 2
36 NGC 2639 Sy2 08 43 38.0682469032 +50 12 19.942091604 12.90 12.56 11.65     ~ 451 2
37 MCG-01-24-012 Sy2 09 20 46.2617017368 -08 03 21.933760068   17.86 17.34     ~ 177 0
38 Z 62-35 Sy1 09 26 03.2694421008 +12 44 03.732389268   15.15 14.60     ~ 359 0
39 NGC 2997 GiG 09 45 38.7542237472 -31 11 27.345810192   9.97 9.41 8.84 9.9 ~ 454 1
40 Z 7-49 Sy1 09 52 19.168 -01 36 44.10   14.99 14.39 11.2   ~ 348 1
41 NGC 3081 Sy2 09 59 29.5437024336 -22 49 34.747341960   13.06 13.55 11.67 12.1 ~ 509 0
42 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
43 IC 2560 Sy2 10 16 18.7073057664 -33 33 49.720274676   12.53 13.31 11.25 12.2 ~ 283 1
44 NGC 3256 Sy2 10 27 51.284 -43 54 13.55   11.83 11.33 10.62 11.9 ~ 920 2
45 NGC 3281 Sy2 10 31 52.086 -34 51 13.40   12.62 14.02 11.17   ~ 392 1
46 MCG+09-19-073 Sy1 11 25 36.1539761184 +54 22 57.113791824   17.06 16.47     ~ 311 0
47 NGC 3783 Sy1 11 39 01.7096819040 -37 44 19.009642992   12.46 13.43 11.33 12.1 ~ 1765 1
48 NGC 4339 GiP 12 23 34.9398092592 +06 04 54.467043780   13.1       ~ 255 0
49 NGC 4507 Sy2 12 35 36.6338976888 -39 54 33.710416272   12.95 13.54 11.70 12.4 ~ 532 1
50 NGC 4593 Sy1 12 39 39.4435107024 -05 20 39.034988448   13.95 13.15     ~ 1179 0
51 IC 3639 Sy1 12 40 52.8344884344 -36 45 21.057011172   13.01 13.50 11.87 12.7 ~ 262 1
52 NGC 4748 Sy1 12 52 12.4650934680 -13 24 53.262019944   14.73 14.03 12.82   ~ 287 0
53 NGC 4968 Sy2 13 07 05.976 -23 40 37.34   13.78 14.79 12.46 12.78 ~ 198 2
54 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 500 1
55 MCG-06-30-015 Sy1 13 35 53.7691256160 -34 17 44.160716796   13.89 13.61 8.9   ~ 1559 0
56 Z 271-60 Sy2 13 44 42.1883001099 +55 53 13.596220922   15.68 14.91     ~ 958 3
57 Z 190-55 Sy2 13 47 17.7559627128 +34 08 55.633887528   14.5       ~ 103 1
58 NGC 5929 Sy1 15 26 06.1564333536 +41 40 14.384294616   13.0 14.00     ~ 450 0
59 NGC 5930 AGN 15 26 07.9964334517 +41 40 33.691556640   13.0       ~ 441 0
60 NGC 6300 Sy2 17 16 59.5418094960 -62 49 13.946588832   10.88 13.08 9.44 10.2 ~ 478 1
61 NGC 6814 Sy1 19 42 40.5862186152 -10 19 25.108718844   15.33 14.21 11.7 11.3 ~ 866 0
62 NGC 6860 Sy2 20 08 46.8865940304 -61 05 59.782024608   13.70 13.53 12.14   ~ 203 0
63 NGC 6907 AG? 20 25 06.63 -24 48 33.0   11.91 11.30 10.47 11.3 ~ 189 2
64 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 553 2
65 NGC 7130 Sy2 21 48 19.5412287192 -34 57 04.492024884   12.86 13.87 11.57   ~ 483 1
66 Z 403-4 Sy2 21 56 22.2667348968 +07 22 00.357100356   15.87 15.01     ~ 91 0
67 NGC 7172 Sy2 22 02 01.897 -31 52 11.60   12.72 13.61 11.15 25.10 ~ 572 2
68 NGC 7184 AG? 22 02 39.8286792432 -20 48 45.720207216   11.98 11.20 10.62   ~ 147 0
69 NGC 7212a Sy1 22 07 01.9870259424 +10 14 00.838175892   15.1       ~ 217 1
70 IC 5169 Sy2 22 10 10.005 -36 05 19.25   13.77 14.27 12.49   ~ 77 1
71 MCG-02-57-023 Sy2 22 36 46.4981814408 -12 32 42.887039748   15.35 14.50 13.6   ~ 192 0
72 Z 404-28 Sy1 22 40 17.0609184456 +08 03 13.539839976   15.30 14.45     ~ 202 1
73 Z 495-18 Sy1 22 42 39.3363009144 +29 43 31.302092640   14.86 14.16     ~ 748 1
74 NGC 7410 Sy2 22 55 00.8670520224 -39 39 40.773846240   11.35 11.80 9.91   ~ 113 0
75 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
76 Z 379-29 Sy2 23 05 18.8343677808 +00 11 22.154765712   16.06 15.03     ~ 94 0
77 NGC 7496 Sy2 23 09 47.2876854912 -43 25 40.279652796   11.92 13.90 10.95 11.5 ~ 350 1
78 NGC 7582 Sy2 23 18 23.60 -42 22 13.3 11.62 10.92 10.62     ~ 978 3
79 NGC 7590 Sy1 23 18 54.7949760192 -42 14 20.515300476   12.12 13.76 11.06 11.8 ~ 290 1
80 NGC 7714 AGN 23 36 14.1257730600 +02 09 18.197422668   14.91 14.36     ~ 788 1
81 APG 284 PaG 23 36 19 +02 09.3   12.6       ~ 608 0

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