2025ApJ...979..168U

Query : 2025ApJ...979..168U

2025ApJ...979..168U - Astrophys. J., 979, 168 (2025/February-1)

ALMA/SCUBA-2 COSMOS Survey: Properties of X-Ray- and SED-selected Active Galactic Nuclei in Bright Submillimeter Galaxies.

UEMATSU R., UEDA Y., ALEXANDER D.M., SWINBANK A.M., SMAIL I., ANDONIE C., CHEN C.-C., DUDZEVICIUTE U., IKARASHI S., KOHNO K., MATSUDA Y., PUGLISI A., UMEHATA H. and WANG W.-H.

Abstract (from CDS):

We investigate the properties of active galactic nuclei (AGNs) in the brightest submillimeter galaxies (SMGs) in the COSMOS field. We utilize the bright sample of the ALMA/SCUBA-2 COSMOS Survey (AS2COSMOS), which consists of 260 SMGs with S_870 μm_ = 0.7-19.2 mJy at z = 0-6. We perform optical to millimeter spectral energy distribution (SED) modeling for the whole sample. We identify 24 AGN-host galaxies from the SEDs. Supplemented by 23 X-ray-detected AGNs (X-ray AGNs), we construct an overall sample of 40 AGN-host galaxies. The X-ray luminosity upper bounds indicate that the X-ray-undetected SED-identified AGNs are likely to be nearly Compton thick or have unusually suppressed X-ray emission. From visual classification, we identify $2{5}_{-5}^{+6}$% of the SMGs without AGNs as major merger candidates. This fraction is almost consistent with the general galaxy population at z ∼ 2, suggesting that major mergers are not necessarily required for the enhanced star formation in SMGs. We also identify $4{7}_{-15}^{+16}$% of the AGN hosts as major merger candidates, which is about twice as high as that in the SMGs without AGNs. This suggests that major mergers play a key role in triggering AGN activity in bright SMGs.

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

Journal keyword(s): Active galaxies - High-redshift galaxies - Submillimeter astronomy - X-ray active galactic nuclei

Simbad objects: 73

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Number of rows : 73
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 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 862 0
2 AS2COS 0189.1 smm 09 57 58.47077749816 +02 16 48.7323498637           ~ 2 0
3 AS2COS 0353.2 smm 09 58 03.25901150713 +02 02 40.0538660093           ~ 2 0
4 AS2COS 0353.1 smm 09 58 03.33485835959 +02 02 40.2630255415           ~ 2 0
5 AS2COS 0084.1 smm 09 58 19.45806732407 +02 15 08.2008546962           ~ 2 0
6 AS2COS 0139.1 G 09 58 19.79243513628 +02 36 10.0660656071           ~ 6 0
7 AS2COS 0123.1 smm 09 58 23.58421787589 +02 12 28.1062177411           ~ 2 0
8 AS2COS 0230.1 smm 09 58 27.62616979742 +01 47 22.3739959243           ~ 2 0
9 AS2COS 0261.1 smm 09 58 34.33940769966 +01 55 03.0389681710           ~ 2 0
10 AS2COS 0065.2 smm 09 58 40.47709049519 +02 05 19.1217620017           ~ 3 0
11 AS2COS 0054.1 G 09 58 45.93717819077 +02 43 29.3230471412           ~ 6 0
12 AS2COS 0362.1 smm 09 58 46.44047601535 +01 43 22.2782421721           ~ 2 0
13 AS2COS 0069.1 smm 09 59 05.04539340686 +02 21 56.7374761189           ~ 2 0
14 AS2COS 0203.1 smm 09 59 06.46938847380 +02 24 35.8667306111           ~ 2 0
15 AS2COS 0231.1 smm 09 59 08.09251661062 +02 49 04.5188705825           ~ 2 0
16 AS2COS 0107.1 smm 09 59 15.34319792127 +02 07 47.3911261678           ~ 2 0
17 AS2COS 0031.1 G 09 59 23.00544493463 +02 51 37.5072558377           ~ 8 0
18 AS2COS 0153.2 smm 09 59 31.57661565636 +02 19 05.4885116506           ~ 2 0
19 AS2COS 0155.1 rG 09 59 31.700 +02 30 43.96           ~ 21 0
20 AS2COS 0099.1 smm 09 59 42.13837113700 +01 46 38.3497819473           ~ 2 0
21 AS2COS 0066.1 G 09 59 46.58293589511 +01 57 15.0599498394           ~ 6 0
22 AS2COS 0275.2 smm 09 59 48.40508711756 +01 44 38.5642104362           ~ 2 0
23 AS2COS 0143.2 smm 09 59 50.10728653170 +01 55 14.4815736805           ~ 2 0
24 AS2COS 0159.1 smm 09 59 50.27024780054 +01 53 36.2779194773           ~ 2 0
25 AS2COS 0006.1 rG 09 59 57.290 +02 27 30.54   27.5 26.8     ~ 26 0
26 AS2COS 0028.2 smm 09 59 59.50750283602 +02 34 41.5404147826           ~ 4 0
27 AS2COS 0133.1 smm 09 59 59.94973816033 +02 06 33.2527033896           ~ 2 0
28 AS2COS 0220.1 smm 10 00 01.87244488302 +01 41 10.0898494619           ~ 2 0
29 AS2COS 0072.1 rG 10 00 06.490 +02 38 37.40           ~ 13 0
30 AS2COS 0001.2 G 10 00 07.84298540796 +02 26 13.2426747088           ~ 4 0
31 AS2COS 0001.1 G 10 00 08.03880890735 +02 26 12.2927690890           ~ 31 0
32 AzTEC 11.S rG 10 00 08.940 +02 40 10.90           ~ 6 0
33 AS2COS 0108.2 smm 10 00 22.81085903745 +01 51 36.6853736168           ~ 2 0
34 AS2COS 0005.1 smm 10 00 23.96870190419 +02 17 50.1176557035           ~ 6 0
35 AS2COS 0005.2 smm 10 00 24.03180980413 +02 17 49.3548369002           ~ 6 0
36 AS2COS 0034.1 G 10 00 25.07011012241 +02 26 07.3287135403           ~ 4 0
37 AS2COS 0034.2 G 10 00 25.37179396369 +02 26 05.3283839464           ~ 4 0
38 AS2COS 0036.1 smm 10 00 25.47840489613 +02 00 51.7261110360           ~ 2 0
39 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
40 AS2COS 0095.2 smm 10 00 30.23081399354 +02 41 46.8902217298           ~ 2 0
41 AS2COS 0024.1 smm 10 00 31.83699954898 +02 12 42.6291146125           ~ 3 0
42 AS2COS 0043.1 smm 10 00 33.68196400961 +02 08 49.7337171140           ~ 3 0
43 AS2COS 0068.1 smm 10 00 34.29868355906 +02 03 02.2100865022           ~ 2 0
44 AS2COS 0019.1 smm 10 00 38.01570280243 +02 08 22.3809107311           ~ 2 0
45 AS2COS 0025.1 smm 10 00 39.24456163587 +02 22 21.0706193888           ~ 4 0
46 AS2COS 0003.4 G 10 00 56.88 +02 20 08.6   25.559 25.478     ~ 17 0
47 AS2COS 0003.1 rG 10 00 56.946 +02 20 17.35           ~ 20 0
48 AS2COS 0003.3 rG 10 00 57.272 +02 20 12.65           ~ 16 0
49 AS2COS 0003.2 G 10 00 57.565 +02 20 11.26           ~ 16 0
50 AS2COS 0063.1 smm 10 01 03.90850696292 +02 24 48.6625311423           ~ 2 0
51 AS2COS 0048.1 smm 10 01 09.24628220958 +02 22 54.9630922958           ~ 3 0
52 AS2COS 0239.1 smm 10 01 14.54019393687 +02 27 05.5465462633           ~ 2 0
53 AS2COS 0272.1 smm 10 01 15.99425308633 +01 36 13.4785828860           ~ 2 0
54 AS2COS 0055.2 smm 10 01 17.15232492617 +01 42 51.1626569857           ~ 2 0
55 AS2COS 0086.1 smm 10 01 22.77561961520 +02 00 45.7428446859           ~ 2 0
56 AS2COS 0076.2 smm 10 01 32.04601169894 +02 04 28.0417923253           ~ 2 0
57 AS2COS 0076.1 smm 10 01 32.13221322127 +02 04 28.1306370563           ~ 2 0
58 AS2COS 0014.1 G 10 01 41.03955511188 +02 04 04.8740272302           ~ 10 0
59 AS2COS 0122.1 smm 10 01 44.64448396670 +02 13 51.4498521101           ~ 2 0
60 AS2COS 0078.3 smm 10 01 46.97914323040 +02 24 46.9033473397           ~ 2 0
61 AS2COS 0116.2 smm 10 01 57.68920995337 +01 44 46.9222368132           ~ 2 0
62 AS2COS 0191.2 smm 10 01 57.74717513393 +02 36 50.5509618082           ~ 2 0
63 AS2COS 0246.2 smm 10 02 01.09005741554 +02 43 30.1194220204           ~ 2 0
64 AS2COS 0285.2 smm 10 02 20.16739213690 +02 44 00.4658719828           ~ 2 0
65 AS2COS 0308.1 smm 10 02 26.10875760513 +02 46 10.9364587425           ~ 2 0
66 AS2COS 0228.2 smm 10 02 27.92740136130 +02 10 04.6475234964           ~ 2 0
67 AS2COS 0228.1 smm 10 02 27.99575033532 +02 10 04.5707529727           ~ 2 0
68 AS2COS 0008.1 G 10 02 49.19162991718 +02 32 55.4704680825           ~ 8 0
69 AS2COS 0175.1 smm 10 02 56.58703441501 +02 11 58.4882613383           ~ 2 0
70 AS2COS 0330.3 smm 10 03 03.72147186954 +01 44 05.2222052495           ~ 2 0
71 NAME Chandra Deep Field-North reg 12 36.8 +62 13           ~ 686 0
72 V* X Equ RR* 21 00 12.1205551008 +09 14 22.057236672     14.51     ~ 16 0
73 SSA 22 reg 22 17 34.7 +00 15 07           ~ 351 0

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