2022MNRAS.514.5506D

Query : 2022MNRAS.514.5506D

2022MNRAS.514.5506D - Mon. Not. R. Astron. Soc., 514, 5506-5527 (2022/August-3)

Chemical abundances in Seyfert galaxies - IX. Helium abundance estimates.

DORS O.L., VALERDI M., FREITAS-LEMES P., KRABBE A.C., RIFFEL R.A., AMORES E.B., RIFFEL R., ARMAH M., MONTEIRO A.F. and OLIVEIRA C.B.

Abstract (from CDS):

For the first time, the helium abundance relative to hydrogen (He/H), which relied on direct measurements of the electron temperature, has been derived in the narrow line regions (NLRs) from a local sample of Seyfert 2 nuclei. In view of this, optical emission line intensities [3000 < λ(Å) < 7000] of 65 local Seyfert 2 nuclei (z < 0.2), taken from Sloan Digital Sky Survey Data Release 15 and additional compilation from the literature, were considered. We used photoionization model grid to derive an Ionization Correction Factor (ICF) for the neutral helium. The application of this ICF indicates that the NLRs of Seyfert 2 present a neutral helium fraction of ∼50 per cent in relation to the total helium abundance. We find that Seyfert 2 nuclei present helium abundance ranging from 0.60 to 2.50 times the solar value, while ∼85 per cent of the sample present oversolar abundance values. The derived (He/H)-(O/H) abundance relation from the Seyfert 2 is stepper than that of star-forming regions (SFs) and this difference could be due to excess of helium injected into the interstellar medium by the winds of Wolf-Rayet stars. From a regression to zero metallicity, by using Seyfert 2 estimates combined with SFs estimates, we obtained a primordial helium mass fraction Yp = 0.2441 ± 0.0037, a value in good agreement with the one inferred from the temperature fluctuations of the cosmic microwave background by the Planck Collaboration, i.e. YpPlanck=0.2471 ±0.0003.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): galaxies: abundances - galaxies: active - galaxies: evolution - galaxies: formation - galaxies: ISM - galaxies: nuclei

VizieR on-line data: <Available at CDS (J/MNRAS/514/5506): tablea1.dat tablea2.dat tablea3.dat>

Simbad objects: 71

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Number of rows : 71
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 LEDA 210 Sy2 00 03 10.0200133344 +04 44 56.261472756   17       ~ 27 0
2 NGC 262 Bla 00 48 47.14147900 +31 57 25.0845702 14.04 13.90 13.06 8.53   ~ 778 2
3 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
4 2C 94 Sy2 01 08 52.8701830824 +13 20 14.262799812   15.19       ~ 494 2
5 NGC 449 Sy2 01 16 07.2105079530 +33 05 21.649015602   15.90 14.96     ~ 302 4
6 NGC 591 Sy1 01 33 31.2305692968 +35 40 05.628351108   14.71 13.90     ~ 205 0
7 SDSS J013957.81-004504.2 Sy2 01 39 57.8186716224 -00 45 04.249265436   19.78 19.04     ~ 9 0
8 Z 386-35 Sy1 01 43 57.7777898304 +02 20 59.531401716   14.90 14.07     ~ 569 1
9 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
10 NGC 1125 Sy2 02 51 40.44 -16 39 02.4   13.98 13.13 12.48   ~ 158 1
11 NGC 1194 Sy2 03 03 49.1124029328 -01 06 13.415103900   15.29 14.18     ~ 307 0
12 NGC 1320 Sy2 03 24 48.6886857672 -03 02 32.121533436   14.0 14.00     ~ 317 0
13 Mrk 612 Sy2 03 30 40.866 -03 08 15.69   15.03 14.25     ~ 100 0
14 SDSS J033923.14-054841.5 Sy2 03 39 23.1459358800 -05 48 41.562649260   18.68 18.24     ~ 14 0
15 NGC 1409 Sy2 03 41 10.4682070631 -01 18 09.476001946   14.7       ~ 83 0
16 MCG+01-12-009 Bla 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 2099 2
17 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
18 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
19 NGC 2110 Sy2 05 52 11.3768668776 -07 27 22.507465392   14.77 13.51 11.86   ~ 712 1
20 UGCA 116 AGN 05 55 42.645 +03 23 32.23 10.74 11.68 11.46   11.82 ~ 561 0
21 Z 329-24 Sy2 06 15 36.2812259376 +71 02 14.837219808 14.21 14.03 12.97     ~ 960 2
22 MCG-05-18-002 Sy2 07 16 31.2062162520 -29 19 28.882826364   13.28 13.52 11.61   ~ 288 4
23 Z 235-30 Sy1 07 42 32.8210670808 +49 48 34.783809768   14.74 14.27     ~ 769 1
24 Mrk 78 Sy2 07 42 41.7033384240 +65 10 37.447730076   15.57 14.58     ~ 386 3
25 SDSS J074257.23+333217.8 Sy2 07 42 57.2343938496 +33 32 17.980504188   19.61 18.98     ~ 9 0
26 MCG-01-24-012 Sy2 09 20 46.2617017368 -08 03 21.933760068   17.86 17.34     ~ 177 0
27 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
28 SDSS J093509.12+002557.4 Sy2 09 35 09.12552 +00 25 57.4464   19.42 18.73     ~ 5 0
29 NGC 2992 Sy2 09 45 42.045 -14 19 34.90 13.54 13.14 12.18 12.6 12.2 ~ 951 3
30 2MASS J09575945+0228109 Sy2 09 57 59.4577205496 +02 28 10.611786288 20.24 19.22 18.51     ~ 27 0
31 NGC 3081 Sy2 09 59 29.5437024336 -22 49 34.747341960   13.06 13.55 11.67 12.1 ~ 509 0
32 SDSS J100602.50+071131.8 Sy2 10 06 02.50536 +07 11 31.8120           ~ 14 0
33 SDSS J100921.26+013334.5 Sy2 10 09 21.2619680184 +01 33 34.587543420   19.30 18.56 17.460   ~ 16 0
34 IC 2560 Sy2 10 16 18.7073057664 -33 33 49.720274676   12.53 13.31 11.25 12.2 ~ 283 1
35 SDSS J101754.72-002811.9 Sy2 10 17 54.7311996144 -00 28 11.884770876   19.56 18.80 17.332   ~ 11 0
36 SDSS J102039.81+642435.8 Sy2 10 20 39.8257461216 +64 24 35.889671196   19.95 18.92     ~ 12 0
37 NGC 3281 Sy2 10 31 52.086 -34 51 13.40   12.62 14.02 11.17   ~ 392 1
38 MCG+10-15-104 Sy2 10 34 08.54424 +60 01 52.1004   15.71 14.65     ~ 271 1
39 NGC 3393 Sy2 10 48 23.4653152920 -25 09 43.487648784   13.10 13.95 11.67 12.2 ~ 471 1
40 IRAS 11215-2806 Sy2 11 24 02.7219289536 -28 23 15.489126168   15.7       ~ 71 0
41 LEDA 1218262 Sy2 11 28 50.4028811208 +02 10 16.251879756   19.91 19.24 16.838   ~ 8 0
42 Mrk 176 Sy2 11 32 40.2448971432 +52 57 01.289256768   15.50 14.61 13.52   ~ 244 1
43 NGC 4074 Sy2 12 04 29.6666072616 +20 18 58.654406844   15.43 14.44     ~ 174 0
44 Z 243-45 Sy2 12 09 14.108 +47 03 30.09   15.55 14.73     ~ 161 1
45 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
46 IC 3639 Sy1 12 40 52.8344884344 -36 45 21.057011172   13.01 13.50 11.87 12.7 ~ 262 1
47 NGC 4939 Sy2 13 04 14.3280524928 -10 20 22.300454724   14.81 13.80 10.92   ~ 332 1
48 NGC 4968 Sy2 13 07 05.976 -23 40 37.34   13.78 14.79 12.46 12.78 ~ 198 2
49 PKS 1306-241 Sy1 13 08 42.01125890 -24 22 57.9385806   15.54   14.93 14.43 ~ 67 1
50 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 500 1
51 NGC 5283 Sy2 13 41 05.7499712616 +67 40 19.967186280   14.97 14.05     ~ 269 0
52 Z 161-119 Sy2 13 41 11.1362655600 +30 22 41.249229816   15.60 14.66     ~ 197 0
53 NGC 5427 Sy1 14 03 26.0408044536 -06 01 50.682790236   14.67 13.96 11.54   ~ 307 0
54 NGC 5643 Sy2 14 32 40.778 -44 10 28.60   11.03 13.60 9.92 10.6 ~ 652 1
55 NGC 5664 Sy2 14 33 43.6414553208 -14 37 10.788891708   15   13.52   ~ 34 1
56 NGC 5728 Sy2 14 42 23.8918506576 -17 15 11.240783784   14.34 13.40     ~ 679 1
57 NGC 5990 Sy2 15 46 16.3702704024 +02 24 55.693907820   13.1       ~ 158 1
58 ESO 137-34 Sy2 16 35 14.114 -58 04 48.10   12.20   10.84 11.6 ~ 165 0
59 ESO 138-1 Sy2 16 51 20.2789606296 -59 14 04.184655576   14.35 13.63 13.02   ~ 162 0
60 IC 4777 Sy2 18 48 11.2992178896 -53 08 51.583361064   14.63 14.63 13.45   ~ 41 0
61 MCG-06-43-014 Sy2 19 57 37.522 -37 56 08.61   14.55       ~ 88 1
62 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
63 MCG-02-51-008 Sy2 20 17 06.4176705576 -12 05 49.294084668   14   13.14   ~ 23 0
64 NGC 6890 Sy2 20 18 18.1057797216 -44 48 24.750633168   13.06 14.02 11.57   ~ 171 0
65 IC 4995 Sy2 20 19 58.9795544088 -52 37 18.903502956   14.32 14.06 12.84   ~ 71 0
66 IC 5063 Bla 20 52 02.15 -57 04 06.7   12.92 13.60 11.30   ~ 710 1
67 NGC 7130 Sy2 21 48 19.5412287192 -34 57 04.492024884   12.86 13.87 11.57   ~ 483 1
68 3C 452 Sy2 22 45 48.7616172744 +39 41 15.906782184   17.60 16.56     ~ 391 1
69 NGC 7582 Sy2 23 18 23.60 -42 22 13.3 11.62 10.92 10.62     ~ 978 3
70 NGC 7590 Sy1 23 18 54.7949760192 -42 14 20.515300476   12.12 13.76 11.06 11.8 ~ 290 1
71 NGC 7682 Sy2 23 29 03.9181335984 +03 31 59.921415444   14.3       ~ 254 1

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