2024ApJ...969...36X

Query : 2024ApJ...969...36X

2024ApJ...969...36X - Astrophys. J., 969, 36 (2024/July-1)

Very Long Baseline Array Observations of Parsec-scale Radio Emission in Dual Active Galactic Nuclei.

XU W., CUI L., LIU X., AN T., CAO H., JIANG P., HO L.C., CHANG N., YANG X., SHEN Y., TAN G., HAN Z., FAN J. and ZHANG M.

Abstract (from CDS):

It is believed that dual active galactic nuclei (AGN) form during galaxy mergers. Studying dual-AGN emission can provide valuable insights into galaxy merging and evolution. To investigate parsec-scale radio emission properties, we observed eight radio components of four selected dual-AGN systems using the Very Long Baseline Array (VLBA) at 5 GHz in multiple-phase-center mode. Among them, two compact radio components, labeled J0051+0020B and J2300-0005A, were detected clearly on parsec scales for the first time. However, the radio emission of the other six components was resolved out in the high-resolution images. We provide the values or upper limits of the brightness temperature and radio emission power, and analyze the emission origins in detail for each target. Based on their physical properties reported in this work and in the literature, we suggest that the radio emission in J0051+0020B and J2300-0005A originates primarily from compact jets, while the other six sources show more complex emission mechanisms. In addition, our VLBA observations suggest that the systematic X-ray deficit in our dual-AGN sample is likely attributed to the tidally induced effect and possibly a viewing angle effect.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Active galactic nuclei - Very long baseline interferometry - Galaxy mergers - Jets - Galaxy pairs - Star formation

Simbad objects: 19

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Number of rows : 19
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 Mrk 335 Sy1 00 06 19.5372339024 +20 12 10.617404076   14.19 13.85     ~ 1344 0
2 SDSS J005113.92+002047.0 rG 00 51 13.9347375336 +00 20 47.171347080           ~ 10 0
3 IRAS 00486+0004 PaG 00 51 14.04963 +00 20 48.5018           ~ 11 0
4 2MASS J00511410+0020494 rG 00 51 14.1099904128 +00 20 49.410237696           ~ 11 0
5 LBQS 0049+0019A QSO 00 52 05.5690063368 +00 35 38.149368180   16.54 16.22     ~ 58 1
6 Mrk 1502 Sy1 00 53 34.9331107632 +12 41 35.929269132   14.41 14.03     ~ 1242 1
7 SDSS J220634.97+000327.6 rG 22 06 34.9739218584 +00 03 27.553296240           ~ 13 0
8 MaNGA 1-205194 rG 22 06 35.08354368 +00 03 23.1212870           ~ 7 0
9 Z 377-26 rG 22 06 35.0849375064 +00 03 23.184456408   15.6       ~ 21 0
10 ICRF J220643.2-003102 BLL 22 06 43.28260999 -00 31 02.4952570   20.26   18.69   ~ 84 1
11 QSO B2209+236 Bla 22 12 05.96631459 +23 55 40.5438259   19 20.66 19.69   ~ 257 1
12 ICRF J222951.8+011456 AG? 22 29 51.80191945 +01 14 56.7247833           ~ 18 1
13 [FMD2015] J2232+0012 PaG 22 32 22 +00 12.4           ~ 2 0
14 [FMD2015] J223222.43+001225.8 rG 22 32 22.41 +00 12 26.3           ~ 5 0
15 [FMD2015] J223222.60+001224.8 rG 22 32 22.60 +00 12 24.7           ~ 6 0
16 ICRF J225404.4+005420 BLL 22 54 04.40612493 +00 54 20.9549859     21.20 19.7   ~ 40 1
17 [FMD2015] J2300-0005 PaG 23 00 10 -00 05.5           ~ 2 0
18 [FMD2015] J230010.19-000531.8 rG 23 00 10.18 -00 05 31.7           ~ 7 0
19 NVSS J230010-000534 rG 23 00 10.245 -00 05 33.98   17.98   16.32   ~ 7 0

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