2014ApJ...784...16M

Query : 2014ApJ...784...16M

2014ApJ...784...16M - Astrophys. J., 784, 16 (2014/March-3)

Photometric decomposition of mergers in disk galaxies.

MEZCUA M., LOBANOV A.P., MEDIAVILLA E. and KAROUZOS M.

Abstract (from CDS):

Several observational studies and numerical simulations suggest that mergers must contribute to the evolution of galaxies; however, the role that they play is not yet fully understood. In this paper we study a sample of 52 double nucleus disk galaxies that are considered as candidates for a minor merger event. The luminosity of each of the nuclei and their relative separation are derived from a multi-component photometric fit of the galaxies in the Sloan Digital Sky Survey optical images. We find that the nuclei in most of the sources have projected separations ≤ 4 kpc. The ratio of nuclear luminosities indicates that most of the systems are likely in the coalescence stage of a major merger. This is supported by the existence of a single galaxy disk in 65% of the systems studied and the finding of a correlation between nuclear luminosity and host luminosity for the single-disk systems: those sources fitted with as single disk are in a more evolved stage of the merger and present an enhancement of the nuclear luminosity compared to the double-disk systems, as expected from simulations of galaxy mergers. Finally, we identify a sample of 19 double nucleus disk galaxies in which the two nuclei are physically separated by ≤ 1 kpc and constitute thus a sample of sub-kpc binary active galactic nucleus candidates.

Abstract Copyright: ∼

Journal keyword(s): galaxies: evolution - galaxies: interactions - galaxies: nuclei - galaxies: photometry

Simbad objects: 56

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Number of rows : 56
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 Z 382-25 G 00 04 48.6265855776 -01 29 54.279901032   15.0       ~ 22 0
2 Z 409-25 G 00 31 09.4227690408 +04 30 11.390263308   15.6       ~ 15 0
3 Mrk 553 AG? 00 36 24.869 +03 11 04.89   16.5       ~ 18 0
4 Z 409-56 AG? 00 39 24.2954408112 +04 34 08.914306764   15.6       ~ 18 0
5 Z 385-82 Sy1 01 21 59.8143568104 -01 02 24.367631424   17.04 16.78 11.0   ~ 160 0
6 Z 503-80 GiG 02 04 18.55 +28 39 21.3   14.7       ~ 32 0
7 Z 504-30 AG? 02 12 28.303 +29 51 27.74   15.6       ~ 18 0
8 Z 524-35 G 02 55 28.969 +36 12 01.91   15.6       ~ 8 0
9 Z 393-74 G 04 43 08.63019 +00 44 39.6448   15.3       ~ 14 0
10 Z 288-28 Sy1 09 16 44.0406256248 +59 46 28.600811904   16.0 16.98     ~ 61 0
11 Z 264-90 Sy1 09 16 45.5160392472 +53 26 34.300942764   14.7       ~ 50 0
12 IC 2450 EmG 09 17 05.310 +25 25 45.16   14.0       ~ 75 0
13 MCG+06-21-031 GiP 09 24 33.990 +34 39 34.06   16.5       ~ 45 0
14 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
15 Z 265-44 Sy1 09 49 30.3096198376 +55 34 46.971972356   15.7       ~ 75 0
16 NGC 3049 EmG 09 54 49.651 +09 16 17.90   13.04       ~ 346 1
17 Z 93-4 H2G 09 56 42.4702882296 +15 38 11.363722656   14.3       ~ 71 0
18 NGC 3217 H2G 10 23 32.6042821872 +10 57 34.975633068   15.2       ~ 36 0
19 Z 290-33 H2G 10 23 46.3580887584 +60 45 07.225272648   15.18       ~ 31 0
20 Z 313-27 H2G 10 35 49.5369778920 +63 32 13.352441784   15.5       ~ 16 0
21 Z 9-100 AG? 10 41 53.377 +00 47 35.58   14.47 14.71 14.320 14.6 ~ 34 1
22 NGC 3353 AGN 10 45 22.390 +55 57 37.36 12.90 13.25 12.79     ~ 378 1
23 NGC 3393 Sy2 10 48 23.4653152920 -25 09 43.487648784   13.10 13.95 11.67 12.2 ~ 471 1
24 Z 66-25 H2G 10 48 56.854 +12 11 41.78   15.4       ~ 33 0
25 Z 267-15 AGN 10 49 05.0478242832 +52 20 07.788652296   14.6       ~ 94 0
26 Z 67-17 GiG 11 09 49.2922561920 +12 46 17.534906004   14.2       ~ 46 1
27 IC 676 H2G 11 12 39.8140774166 +09 03 19.836734750   13.4       ~ 152 0
28 Z 268-17 G 11 18 17.069 +53 44 59.51   15.2       ~ 46 0
29 Z 185-66 Sy2 11 26 48.4988872152 +35 15 03.212861508   15.04 14.29     ~ 144 0
30 NGC 3758 Sy1 11 36 29.3703820296 +21 35 45.984535728   14.8       ~ 174 0
31 NGC 3773 H2G 11 38 12.967 +12 06 42.91   13.1       ~ 219 0
32 Z 12-111 Sy1 11 52 37.19 -02 28 09.9   14.79   14.09 14.9 ~ 184 0
33 IC 776 EmG 12 19 03.119 +08 51 22.15   14.9       ~ 154 0
34 Z 42-85 EmG 12 24 40.052 +03 18 12.22   14.9       ~ 38 0
35 MCG+08-23-039 AGN 12 28 15.2283195120 +44 27 11.276497512   16       ~ 26 0
36 Z 70-110 LSB 12 28 33.928 +08 38 22.61   15.3       ~ 82 0
37 NGC 4509 GiG 12 33 06.500 +32 05 27.35   14.1       ~ 93 0
38 Mrk 777 H2G 12 38 08.914 +14 21 10.05   16.0       ~ 18 0
39 Mrk 219 H2G 12 38 37.2357119016 +55 55 31.855284012   16.0       ~ 23 0
40 MCG+08-23-092 H2G 12 46 23.2763550240 +48 14 07.034269452   16.0       ~ 27 0
41 NGC 4904 Sy1 13 00 58.667 -00 01 38.83   13.2       ~ 169 0
42 NGC 5058a H2G 13 16 52.339 +12 32 53.92   14.6       ~ 61 1
43 MCG+10-19-072 Sy2 13 25 53.82030 +57 15 16.0664   15.0       ~ 84 0
44 Mrk 789 AGN 13 32 24.240 +11 06 22.59   15.41 14.87     ~ 123 0
45 MCG+10-19-089 AG? 13 33 39.499 +60 23 14.38   16       ~ 14 0
46 NGC 5256 PaG 13 38 17.81 +48 16 41.2   14.1 13.42     ~ 449 1
47 NGC 5430 AGN 14 00 45.820 +59 19 43.14   12.7       ~ 261 1
48 MCG+07-29-061 G 14 17 08.201 +42 40 57.95   17.8   17.7   ~ 30 0
49 Z 296-20 AG? 14 58 09.755 +58 52 18.52   15.5       ~ 34 0
50 NGC 5860 EmG 15 06 33.73 +42 38 29.2   14.2       ~ 89 0
51 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
52 Z 169-28 rG 17 00 32.1695499288 +32 40 14.723193720   15.5       ~ 34 0
53 Z 452-22 G 22 31 51.270 +19 41 31.47   14.6       ~ 63 1
54 NGC 7468 bCG 23 02 59.172 +16 36 16.20   14.0       ~ 167 0
55 Mrk 930 AGN 23 31 58.630 +28 56 50.51 14.27 15.04 14.63 14.56 14.46 ~ 147 0
56 NGC 7752 GiP 23 46 58.557 +29 27 32.17   14.3       ~ 139 0

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