2006A&A...448..479M


Query : 2006A&A...448..479M

2006A&A...448..479M - Astronomy and Astrophysics, volume 448, 479-487 (2006/3-3)

Signatures of restarted activity in core-dominated, triple radio sources selected from the FIRST survey.

MARECKI A., THOMASSON P., MACK K.-H. and KUNERT-BAJRASZEWSKA M.

Abstract (from CDS):

Signatures of the re-occurrence of activity in radio-loud AGNs, indicated either by the so-called double-double or X-shaped structures, have been observed in a number of radio sources. All such objects known to date have linear sizes of the order of a megaparsec. A number of the sources that are appreciably more compact than this, but that exhibit hints of a past phase of activity, were found in the VLA FIRST survey. Their structures show symmetric relic lobes straddling relatively bright, unresolved cores. Observations of the cores of 15 such structures with MERLIN at 5GHz have shown that four of them are doubles or core-jets on the subarcsecond scale. Misalignments of ΔPA>30° between the axis of the inner structure and the line connecting the fitted maxima of the arcminute-scale relic lobes are clearly visible in three of the four sources. From these results, we can infer that a rapid repositioning of the central engine in each of these three radio sources is the most plausible interpretation of the observed morphology and that a merger is most likely the original cause of such a repositioning. In the case of TXS1033+026, the optical image extracted from the SDSS archives clearly suggests that two objects separated by only 2.7kpc (projected onto the sky plane) are indeed merging. The inner parts of TXS0818+214 and TXS1312+563 could be interpreted as double-lobed, and consequently, these sources could be of the double-double type; but further multifrequency observations are necessary to provide support for such an interpretation.

Abstract Copyright:

Journal keyword(s): radio continuum: galaxies - galaxies: active

Nomenclature: Tables 2, 3: [MTM2006] JHHMMSS.sss+DDMMSS.ss N=21.

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 - 2021
#notes
1 PKS 0114-47 rG 01 16 25.071 -47 22 40.67   16.5 16.5     ~ 62 1
2 SGRS J0143-5431 rG 01 43.0 -54 31           ~ 1 0
3 4C 13.14 QSO 02 31 45.89405431 +13 22 54.7162668   17.96 17.71 17.93   ~ 261 1
4 87GB 072602.2+253720 Q? 07 29 05.761 +25 30 34.05           ~ 4 1
5 ZwCl 0735+7421 ClG 07 41 40.3 +74 14 58     17.70     ~ 231 0
6 PMN J0746-5703 rG 07 46 18.54 -57 02 57.6           ~ 5 0
7 [MTM2006] J082106.547+211719.26 Rad 08 21 06.547 +21 17 19.26           ~ 1 1
8 [MTM2006] J082107.501+211703.06 Rad 08 21 07.501 +21 17 03.06           ~ 1 1
9 [MTM2006] J082107.504+211703.18 Rad 08 21 07.504 +21 17 03.18           ~ 1 1
10 NVSS J082107+211704 rG 08 21 07.510 +21 17 02.86           ~ 8 1
11 [MTM2006] J082107.526+211702.80 Rad 08 21 07.526 +21 17 02.80           ~ 1 1
12 [MTM2006] J082108.357+211649.09 Rad 08 21 08.357 +21 16 49.09           ~ 1 1
13 7C 093818.10+395820.00 Sy2 09 41 24.0272828657 +39 44 41.806341013   16.36 16.4     ~ 181 2
14 4C 00.30 BLL 09 43 19.2 -00 04 25   20.0       ~ 18 1
15 NVSS J100617+551242 Rad 10 06 17.18 +55 12 44.7           ~ 3 1
16 NVSS J102733+544233 Rad 10 27 33.78 +54 42 37.5           ~ 2 1
17 NVSS J102832+083954 Rad 10 28 33.0 +08 39 57           ~ 3 1
18 [MTM2006] J103628.166+022228.88 Rad 10 36 28.166 +02 22 28.88           ~ 1 1
19 SDSS J103631.50+022201.9 G 10 36 31.51 +02 22 02.0   18.06 17.99     ~ 2 0
20 Z 37-89 G 10 36 31.880 +02 21 44.10   15.6 18.62     ~ 19 2
21 [MTM2006] J103631.933+022145.53 Rad 10 36 31.933 +02 21 45.53           ~ 1 1
22 [MTM2006] J103631.946+022145.54 Rad 10 36 31.946 +02 21 45.54           ~ 1 1
23 [MTM2006] J103633.024+022136.80 Rad 10 36 33.024 +02 21 36.80           ~ 1 1
24 LEDA 1224300 G 10 36 33.24 +02 21 20.7   17.92 17.80     ~ 3 0
25 GB6 B1046+1845 Rad 10 48 53.80 +18 29 39.8           ~ 2 1
26 4C 01.28 BLL 10 58 29.60520747 +01 33 58.8237691   18.74 18.28 16.68   ~ 692 2
27 2MASX J11302142+0058230 Sy1 11 30 21.4202517083 +00 58 23.044644843   18.45 17.75 17.696   ~ 52 2
28 NGC 4038 GiP 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1290 1
29 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1598 0
30 NGC 4039 GiP 12 01 53.8 -18 53 06   11.08   9.77   ~ 1139 1
31 ICRF J124733.3+672316 QSO 12 47 33.3296299 +67 23 16.448950           ~ 77 1
32 [MTM2006] J131120.744+005310.70 Rad 13 11 20.744 +00 53 10.70           ~ 1 1
33 [MTM2006] J131121.157+005319.47 Rad 13 11 21.157 +00 53 19.47           ~ 1 1
34 LBQS 1308+0109 QSO 13 11 21.158 +00 53 19.56   18.07 17.64     ~ 18 1
35 [MTM2006] J131121.161+005319.26 Rad 13 11 21.161 +00 53 19.26           ~ 1 1
36 [MTM2006] J131121.170+005319.23 Rad 13 11 21.170 +00 53 19.23           ~ 1 1
37 [MTM2006] J131121.786+005329.46 Rad 13 11 21.786 +00 53 29.46           ~ 1 1
38 6C 130956+482534 QSO 13 12 11.1374685113 +48 09 25.257444638   17.65 17.49 17.5   ~ 45 1
39 [MTM2006] J131457.908+560332.46 Rad 13 14 57.908 +56 03 32.46           ~ 1 1
40 [MTM2006] J131457.987+560346.06 Rad 13 14 57.987 +56 03 46.06           ~ 1 1
41 [MTM2006] J131458.405+560342.43 Rad 13 14 58.405 +56 03 42.43           ~ 1 1
42 8C 1312+563 QSO 13 14 58.4071681888 +56 03 42.435721817   19.13 19.04     ~ 30 1
43 [MTM2006] J131458.412+560341.81 Rad 13 14 58.412 +56 03 41.81           ~ 1 1
44 [MTM2006] J131458.416+560342.00 Rad 13 14 58.416 +56 03 42.00           ~ 1 1
45 [MTM2006] J131459.232+560352.20 Rad 13 14 59.232 +56 03 52.20           ~ 1 1
46 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825107   17.51 17.25     ~ 3932 2
47 MCG+05-33-005 LIN 13 48 52.511 +26 35 34.84   14.0       ~ 224 2
48 QSO B1404+286 BLL 14 07 00.3933203928 +28 27 14.695133019   16.13 15.35 10.29   ~ 708 2
49 PMN J1525+0537 Rad 15 25 23.6419156251 +05 37 35.717366577           ~ 3 1
50 PKS 1545-321 rG 15 48 58.0331477149 -32 16 58.157614838           ~ 46 1
51 NVSS J155726+360133 Rad 15 57 26.1 +36 01 33           ~ 4 1
52 FIRST J162544.9+271929 Rad 16 25 44.872 +27 12 29.39           ~ 1 0
53 NVSS J170623+434029 rG 17 06 25.440 +43 40 40.16           ~ 6 1
54 SGRS J1946-8222 rG 19 46.0 -82 22           ~ 1 0
55 3C 403.0 Sy2 19 52 15.7997953344 +02 30 24.235518851   15.42 16.5     ~ 305 1
56 SGRS J2159-7219 rG 21 59.0 -72 19           ~ 1 0

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2021.10.23-11:30:20

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