2013A&A...552A.135K


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST12:02:09

2013A&A...552A.135K - Astronomy and Astrophysics, volume 552A, 135-135 (2013/4-1)

Activity of the Seyfert galaxy neighbours.

KOULOURIDIS E., PLIONIS M., CHAVUSHYAN V., DULTZIN D., KRONGOLD Y., GEORGANTOPOULOS I. and LEON-TAVARES J.

Abstract (from CDS):

We present a follow-up study of a series of papers concerning the role of close interactions as a possible triggering mechanism of AGN activity. We have already studied the close (≤100h–1kpc) and the large-scale (≤1h–1Mpc) environment of a local sample of Sy1, Sy2, and bright IRAS galaxies (BIRG) and of their respective control samples. The results led us to the conclusion that a close encounter appears capable of activating a sequence where an absorption line galaxy (ALG) galaxy first becomes a starburst, then a Sy2, and finally a Sy1. Here we investigate the activity of neighbouring galaxies of different types of AGN, since both galaxies of an interacting pair should be affected. To this end we present the optical spectroscopy and X-ray imaging of 30 neighbouring galaxies around two local (z≲0.034) samples of 10 Sy1 and 13 Sy2 galaxies. Although this is a pilot study of a small sample, various interesting trends have been discovered that imply physical mechanisms that may lead to different Seyfert types. Based on the optical spectroscopy, we find that more than 70% of all neighbouring galaxies exhibit star forming and/or nuclear activity (namely recent star formation and/or AGN), while an additional X-ray analysis showed that this percentage might be significantly higher. Furthermore, we find a statistically significant correlation, at a 99.9% level, between the value of the neighbour's [OIII]/Hβ ratio and the activity type of the central active galaxy, i.e. the neighbours of Sy2 galaxies are systematically more ionized than the neighbours of Sy1s. This result, in combination with trends found using the Equivalent Width of the Hα emission line and the stellar population synthesis code STARLIGHT, indicate differences in the stellar mass, metallicity, and star formation history between the samples. Our results point towards a link between close galaxy interactions and activity and also provide more clues regarding the possible evolutionary sequence inferred by our previous studies.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: Seyfert - galaxies: interactions - galaxies: nuclei - large-scale structure of Universe - X-rays: galaxies

VizieR on-line data: <Available at CDS (J/A+A/552/A135): table1.dat sp/*>

Simbad objects: 58

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Number of rows : 58

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LEDA 1026108 G 00 18 33.4 -06 58 54           ~ 3 0
2 2MASX J00183589-0702555 Sy2 00 18 35.9039891621 -07 02 55.811313459   15.20 14.1 13.83   ~ 31 0
3 NGC 526 Sy1 01 23 54.3778199024 -35 03 55.695504754   14.76 14.60 13.46   ~ 296 1
4 MCG-06-04-020 GiP 01 23 57.0756674065 -35 04 09.454662495   15.14 14.5 13.79   ~ 22 0
5 NGC 527 GiG 01 23 58.122 -35 06 54.52   14.07   12.50   ~ 36 1
6 MCG-06-04-022 LSB 01 23 59.346 -35 07 38.51   16.26       ~ 7 0
7 [KPC2006] NGC 526A Neighbor 3 G 01 24 09.5 -35 05 42           ~ 2 0
8 [KPC2006] NGC 863 Neighbor 1 G 02 14 29.3 -00 46 05           ~ 2 0
9 SDSS J021429.36-004604.7 G 02 14 29.361 -00 46 04.75           ~ 3 0
10 NGC 863 Sy1 02 14 33.5610949475 -00 46 00.180128181   14.48 13.81 17.9   ~ 572 0
11 2MFGC 1811 G 02 19 59.840 +08 10 44.83           ~ 11 0
12 Mrk 1400 Sy1 02 20 13.7351956052 +08 12 19.235213018   16.26 15.27     ~ 37 0
13 ESO 545-13 Sy1 02 24 40.615 -19 08 31.31   13.97 15.33 12.86   ~ 52 0
14 MCG-03-07-012 G 02 24 51.228 -19 08 04.42   15.70       ~ 8 0
15 2MASX J02382541+0158076 GiG 02 38 25.419 +01 58 07.66   15.6       ~ 16 0
16 NGC 1019 Sy1 02 38 27.421 +01 54 27.67   15.71 14.95     ~ 71 0
17 ESO 417-6 Sy2 02 56 21.530 -32 11 08.17   14.29   13.13   ~ 64 0
18 2dFGRS TGS468Z141 G 02 56 40.540 -32 11 03.64   16.702   15.617   ~ 4 0
19 2MASX J03034116-0104249 G 03 03 41.166 -01 04 24.98   15.90   14.81   ~ 8 0
20 NGC 1194 Sy2 03 03 49.110 -01 06 13.50   15.29 14.18     ~ 198 0
21 UGC 2517 G 03 04 12.502 -01 11 34.30   14.9       ~ 21 0
22 NGC 1241 Sy2 03 11 14.636 -08 55 19.70 12.07 12.84 11.99 12.7 12.5 ~ 193 2
23 NGC 1242 G 03 11 19.333 -08 54 08.69 14.27 14.32 13.71     ~ 42 1
24 NGC 1321 GiG 03 24 48.5743820648 -03 00 56.095314664   14.5       ~ 34 0
25 NGC 1320 Sy2 03 24 48.6903707574 -03 02 32.121207374   14.0 14.00     ~ 234 0
26 Mrk 612 Sy2 03 30 40.866 -03 08 15.69   15.03 14.25     ~ 85 0
27 2MASX J03304226-0309486 G 03 30 42.2661121048 -03 09 49.006377823   15.06   13.75   ~ 12 0
28 NGC 1355 GiG 03 33 23.511 -04 59 55.46   15   13.18   ~ 27 1
29 NGC 1358 Sy2 03 33 39.6845285938 -05 05 22.226986857   14.10 13.05 11.76   ~ 184 1
30 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14832 1
31 NAME Great Attractor SCG 10 32 -46.0           ~ 461 0
32 NGC 3786 GiP 11 39 42.5135441867 +31 54 33.955263276   14.62 13.74     ~ 358 1
33 NGC 3788 GiP 11 39 44.597 +31 55 52.70   13.30 12.50     ~ 121 1
34 LEDA 867524 G 11 45 38.9 -18 29 18           ~ 4 0
35 2MASX J11454045-1827149 Sy1 11 45 40.4653921674 -18 27 14.962362659   14.63 14.29 10.5   ~ 126 0
36 6dFGS gJ114540.9-182736 G 11 45 40.807 -18 27 35.97   16.89   15.65   ~ 7 0
37 UGC 7064 Sy2 12 04 43.3232838086 +31 10 38.160622235   14.82 14.01     ~ 163 1
38 2MASX J12044519+3109337 GiG 12 04 45.190 +31 09 33.78   15.2       ~ 31 0
39 2MASX J12044518+3111327 LIN 12 04 45.2025869147 +31 11 32.894591385   15.7       ~ 24 0
40 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5825 0
41 NAME SHAPLEY-CENTAURUS CL SCG 13 06.0 -33 04           ~ 500 0
42 2MASX J14173385+2506515 G 14 17 33.878 +25 06 52.05           ~ 10 0
43 NGC 5548 Sy1 14 17 59.5401093128 +25 08 12.600227883   14.35 13.73     ~ 2393 0
44 NGC 6104 Sy1 16 16 30.6749775288 +35 42 28.959111583   18.17 17.35     ~ 115 0
45 MCG+06-36-012 LIN 16 16 49.8986156757 +35 42 07.065564733   15.4       ~ 16 0
46 2MASX J16234047+4106157 GiC 16 23 40.474 +41 06 15.75           ~ 7 0
47 Mrk 699 Sy1 16 23 45.8804171705 +41 04 56.426364686   17.04 16.61     ~ 114 0
48 [KPC2006] UGC 12138 Neighbor 1 G 22 40 11.0 +07 59 59           ~ 2 0
49 UGC 12138 Sy1 22 40 17.0607019206 +08 03 13.518117435   15.30 14.45     ~ 151 0
50 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 1888 3
51 IC 5283 GiP 23 03 17.996 +08 53 37.13   15.2       ~ 107 1
52 Mrk 526 G 23 12 43.110 +10 43 47.56   15.4       ~ 20 0
53 NGC 7671 GiP 23 27 19.329 +12 28 02.60   14.3       ~ 55 0
54 NGC 7672 Sy2 23 27 31.435 +12 23 06.53   15.05 14.21     ~ 83 0
55 NGC 7679 Sy2 23 28 46.670 +03 30 40.99   13.2       ~ 233 1
56 NGC 7682 Sy2 23 29 03.896 +03 32 00.00   14.3       ~ 204 0
57 LEDA 1373952 G 23 44 05.5 +10 03 27   15.8       ~ 6 0
58 NGC 7743 Sy2 23 44 21.1586928811 +09 56 02.970129689   14.19 13.28     ~ 289 0

    Equat.    Gal    SGal    Ecl

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2020.07.12-12:02:09

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