2025ApJ...994..181T

Query : 2025ApJ...994..181T

2025ApJ...994..181T - Astrophys. J., 994, 181 (2025/December-1)

BASS. LIV. Physical Properties of AGN-hosting Galaxy Mergers from Multiwavelength SED Fitting.

TRONCOSO M., TREISTER E., ROJAS A., BOQUIEN M., BAUER F., KOSS M.J., ASSEF R.J., PARRA TELLO M., DEL MORAL-CASTRO I., RICCI C., DAI S., OH K., RICCI F., PECA A., URRY C.M., GUPTA K.K., VENTURI G., SIGNORINI M., MUSHOTZKY R. and SANDERS D.

Abstract (from CDS):

Galaxy mergers are believed to play an important role in triggering rapid supermassive black hole (SMBH) growth. As merging nuclei approach each other, the physical properties of the participating galaxies and the associated SMBH growth are expected to evolve significantly. This study measures and characterizes these physical properties throughout the merger sequence. We constructed multiwavelength spectral energy distributions (SEDs) from hard X-rays to the far-IR for a sample of 72 nearby active galactic nucleus (AGN) host galaxies. The sample comprises 64 interacting systems, including single AGN in mergers and dual AGN, with nuclear separations ≤30 kpc, as well as eight isolated active galaxies with merging features. We carefully adapted available photometric measurements at each wavelength to account for their complex morphologies and varying spatial resolutions, to perform SED fitting using CIGALE, aimed to derive critical physical properties. Our results reveal that merging galaxies hosting AGN(s) show deviations from the star-forming main sequence and a wide range of star formation rates (SFRs). Both AGN activity and star formation are significantly influenced by the merger process, but these effects are more prominent in major (mass ratios < 4:1) interactions. We find that the projected nuclear separation is not a good tracer of the merger stage. Instead, morphological classification accurately assesses the merger progression. Based on this morphological analysis, late-stage mergers exhibit elevated SFRs (5.1×), AGN luminosities (2.4×), and nuclear obscuration (2.8×) compared to earlier stages, supporting previous findings and reinforcing the link between merger-driven galaxy evolution and SMBH growth.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Galaxy mergers - Spectral energy distribution - AGN host galaxies

Simbad objects: 75

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Number of rows : 75
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 136991 Sy2 00 25 33.0571973232 +68 21 43.694350020           ~ 63 1
2 NGC 235 Sy1 00 42 52.8103465632 -23 32 27.718834092   14.24   12.63   ~ 168 1
3 ESO 195-21 Sy2 01 00 34.9433429712 -47 52 03.694702404   16.57   15.88   ~ 45 0
4 Z 436-14 Sy1 01 13 51.0408870864 +13 16 18.204162240   15.65 14.95     ~ 127 0
5 NGC 454E Sy2 01 14 24.9356626320 -55 23 49.309036656   13.13 13.58 11.93   ~ 96 0
6 ESO 113-45 Sy1 01 23 45.7631533440 -58 48 20.808928944   14.08 13.83 13.34   ~ 965 0
7 NGC 526 Sy2 01 23 54.3772245792 -35 03 55.710850788   14.76 14.60 13.46   ~ 354 2
8 MCG-06-04-043 Sy2 01 31 50.4211828920 -33 07 09.672692880   13.69 13.7 12.21 13.6 ~ 70 2
9 LEDA 138434 Sy2 01 39 23.9942202456 +29 24 06.726426264           ~ 33 0
10 LEDA 431158 Sy2 01 40 26.7945123552 -53 19 39.291140568           ~ 29 0
11 NGC 985 Sy1 02 34 37.882 -08 47 17.02   14.64 14.28 12.9   ~ 449 0
12 ESO 198-24 Sy1 02 38 19.7164562112 -52 11 32.343907596   15.36 14.17 13.75   ~ 179 0
13 NGC 1142 Sy2 02 55 12.2311509144 -00 11 00.807149472   15.42 14.41     ~ 350 1
14 MCG-05-08-006 Sy2 02 56 21.5349636672 -32 11 08.156413860   14.29   13.13   ~ 94 0
15 NGC 1217 Sy2 03 06 06.0416133864 -39 02 10.850408376   13.34   11.46   ~ 52 1
16 NGC 1320 Sy2 03 24 48.6886857672 -03 02 32.121533436   14.0 14.00     ~ 317 0
17 MCG-04-09-052 Sy1 03 42 03.7135713768 -21 14 39.577309944   12.84 13.68 11.57   ~ 145 0
18 ESO 201-4 Sy2 03 50 22.9859322624 -50 18 09.403324596   15.03   13.19   ~ 34 0
19 LEDA 13946 AGN 03 50 23.7615582792 -50 18 35.809337268   16.18   14.59   ~ 44 0
20 LEDA 14064 Sy1 03 54 09.4651613568 +02 49 30.669766752   17.30 16.2     ~ 79 0
21 ESO 157-23 Sy2 04 22 24.0620461061 -56 13 32.255311537   15.02 15.0 13.72   ~ 50 0
22 LEDA 15023 Sy2 04 23 40.7641669176 +04 08 01.820745852   16.8       ~ 102 1
23 ESO 118-33 Sy2 04 39 59.0449930152 -59 40 53.785125696   15.71   14.45   ~ 42 0
24 LEDA 3095705 Sy1 04 51 44.0090119416 -58 11 00.294907488     16.3     ~ 36 0
25 LEDA 146662 Sy2 04 54 42.8918560872 -43 14 22.721898012   17.34   15.88   ~ 22 0
26 Z 468-2 Sy2 05 08 19.7062775592 +17 21 48.085162020   15.4       ~ 129 0
27 LEDA 17320 Sy2 05 28 02.0341177344 -39 34 44.792916312   15.80   14.53   ~ 14 0
28 ESO 306-1 AGN 05 28 03.0 -39 34 37   15.50   14.15   ~ 27 0
29 LEDA 548912 Sy2 05 44 00.0862765968 -43 25 26.876677080           ~ 22 0
30 2MASX J05442257+5907361 Sy2 05 44 22.5614428488 +59 07 35.943440844           ~ 31 1
31 ESO 205-3 Sy2 05 48 28.423 -47 45 31.76   15.60   14.21   ~ 42 1
32 RX J0602.1+2828 Sy1 06 02 10.4708953560 +28 28 19.407708696   15.0       ~ 89 1
33 LEDA 3707147 Sy1 06 05 48.9581853768 -27 54 39.994402968   17.46   16.39   ~ 37 1
34 ESO 121-28 Sy2 06 23 45.5588163624 -60 58 44.383377828   15.21 15.2 13.66   ~ 81 0
35 MCG-04-16-015 Sy1 06 40 11.6919443712 -25 53 43.059681312   14.08   12.60   ~ 97 1
36 SWIFT J064013.5-474132 Sy2 06 40 13.488240 -47 41 34.74600           ~ 9 0
37 Z 59-39 Sy2 08 04 46.4040459432 +10 46 36.016606848   14.9       ~ 85 0
38 MCG-01-22-006 Sy2 08 23 01.0958556600 -04 56 05.578315548   15.62   14.36   ~ 78 0
39 SDSS J084344.98+354942.0 Sy2 08 43 44.9739924504 +35 49 42.113462340   17.93 17.55     ~ 59 0
40 LEDA 251170 Sy2 09 03 42.8949172896 -74 14 17.418209280   17.49   16.14   ~ 23 0
41 MCG-04-23-008 Sy2 09 34 43.5460992984 -21 55 39.858501396   13.65 13.66 11.47   ~ 75 0
42 LEDA 3085296 Sy2 09 41 01.0375049208 -38 47 51.161267256   17.57   16.55   ~ 10 0
43 NGC 2992 Sy2 09 45 42.045 -14 19 34.90 13.54 13.14 12.18 12.6 12.2 ~ 951 3
44 ESO 263-13 Sy2 10 09 48.1876712664 -42 48 40.530472560   14.94 14.95 13.29   ~ 112 1
45 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
46 NGC 3588 Sy2 11 14 02.4860685264 +20 23 14.240590728   15.3       ~ 44 0
47 Z 185-66 Sy2 11 26 48.4988872152 +35 15 03.212861508   15.04 14.29     ~ 144 0
48 MCG-05-27-013 Sy2 11 27 23.4314224104 -29 15 27.540738540   14.76 15.49 13.18   ~ 88 1
49 Mrk 739E Sy1 11 36 29.3 +21 35 45   14.86 14.08     ~ 63 0
50 LEDA 801745 Sy2 11 38 51.0052630080 -23 21 35.346868704   17.4       ~ 72 1
51 ATO J176.4186-18.4541 Sy1 11 45 40.4653497048 -18 27 14.962917636   14.63 14.29 10.5   ~ 189 0
52 LEDA 38038 Sy2 12 02 47.6234151336 -53 50 07.791323712   17.3       ~ 87 0
53 7C 121146.50+294816.00 Sy1 12 14 17.8142672232 +29 31 43.179858912   16.43 15.33     ~ 102 1
54 MCG-04-29-015 Sy2 12 16 57.1179027144 -26 12 33.443794692   14.88 15.24 13.98   ~ 47 0
55 NGC 4748 Sy1 12 52 12.4650934680 -13 24 53.262019944   14.73 14.03 12.82   ~ 287 0
56 NGC 5100 Sy2 13 20 59.5742831448 +08 58 42.014397036   15.1       ~ 74 2
57 2MASX J13335911-3824499 Sy2 13 33 59.11753 -38 24 49.9790           ~ 3 0
58 [OKM2018] SWIFT J1334.1-3842 X 13 34 05.1 -38 25 43           ~ 2 0
59 ESO 509-66 Sy2 13 34 39.6208983000 -23 26 47.629092300   16.60 16.6 15.19   ~ 87 2
60 Z 103-14 Sy2 13 56 02.89833 +18 22 18.2982   14.8 14.22     ~ 413 2
61 NGC 5506 Bla 14 13 14.8761010056 -03 12 27.556909272   15.25 14.38     ~ 1173 1
62 LEDA 140284 Sy2 14 16 33.1653147480 -36 40 53.851003464   17.0       ~ 31 0
63 LEDA 1695455 Sy2 16 31 15.546 +23 52 57.80   18.76 18.13     ~ 53 0
64 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
65 LEDA 1659236 Sy1 17 08 59.1255573864 +21 53 08.171364768   17.92 17.53     ~ 46 1
66 Z 341-6 Sy2 18 45 26.287 +72 11 00.83   15.5       ~ 61 0
67 MCG-06-44-017 Sy1 20 06 57.9263608728 -34 32 54.656716920   15.23 14.51 13.68   ~ 70 0
68 NGC 6921 Sy2 20 28 28.8658027224 +25 43 24.094324884 15.41   12.897     ~ 104 1
69 MCG+04-48-002 Sy2 20 28 35.061 +25 44 00.18   18       ~ 164 1
70 2MASX J21561518+1722525 Sy1 21 56 15.2309008800 +17 22 52.593458376           ~ 17 0
71 NGC 7212a Sy1 22 07 01.9870259424 +10 14 00.838175892   15.1       ~ 217 1
72 NGC 7214 Sy1 22 09 07.6631604816 -27 48 34.160960772   12.48 14.10 11.40   ~ 149 0
73 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
74 NGC 7674 Sy1 23 27 56.6973043968 +08 46 44.253707772 13.84 13.92 13.23 12.64   ~ 738 2
75 LEDA 73132 Sy2 23 59 04.31090 -60 54 59.2180   16.61       ~ 155 1

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