2013A&A...555A...4M


Query : 2013A&A...555A...4M

2013A&A...555A...4M - Astronomy and Astrophysics, volume 555A, 4-4 (2013/7-1)

Radio polarimetry of compact steep spectrum sources at sub-arcsecond resolution.

MANTOVANI F., ROSSETTI A., JUNOR W., SAIKIA D.J. and SALTER C.J.

Abstract (from CDS):

We report new Very Large Array (VLA) polarimetric observations of compact steep-spectrum (CSS) sources at 8.4, 15, and 23GHz. Using multi-frequency VLA observations we have derived sub-arcsecond resolution images of the total intensity, polarisation, and rotation measure (RM) distributions. We present multi-frequency VLA polarisation observations of CSS sources. About half of the sources are point-like even at the resolution of ∼0.1x0.1-arcsec. The remaining sources have double or triple structure. Low values for the percentage of polarised emission in CSS sources is confirmed. On the average, quasars are more polarised than galaxies. A wide range of RM values have been measured. There are clear indications of very large RMs up to ≃5585rad/m2. CSS galaxies are characterized by RM values that are larger than CSS quasars. The majority of the objects show very large values of RM. The available data on sub-arcsecond-scale rest-frame RM estimates for CSS sources show that these have a wide range of values extending up to ∼36000rad/m2. RM estimates indicate an overall density of the magneto-ionic medium larger than classical radio sources.

Abstract Copyright:

Journal keyword(s): polarization - quasars: general - galaxies: jets - radio continuum: galaxies

VizieR on-line data: <Available at CDS (J/A+A/555/A4): table1.dat table2.dat table3.dat table4.dat table5.dat table6.dat table7.dat list.dat fits/*>

Simbad objects: 33

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Number of rows : 33
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 QSO B0023-263 BLL 00 25 49.15629900 -26 02 12.6141092   20.30 19.5 18.084   ~ 160 1
2 PKS 0114-21 rG 01 16 51.40488104 -20 52 06.8906316     16.5     ~ 86 1
3 4C 31.04 rG 01 19 35.00087601 +32 10 50.0619670   16 14.5     ~ 235 1
4 3C 43 QSO 01 29 59.7696120312 +23 38 20.041393524           ~ 202 0
5 7C 022118.10+273638.00 Sy1 02 24 12.2865158736 +27 50 11.538285648   19.502 18 18.263   ~ 209 1
6 4C 34.07 QSO 02 26 10.33325265 +34 21 30.2874853   21.3       ~ 96 1
7 QSO B0319+12 QSO 03 21 53.10350560 +12 21 13.9537765   19 19     ~ 133 1
8 ICRF J041045.6+765645 AGN 04 10 45.61079426 +76 56 45.3130641   21 22.0 21.200   ~ 158 1
9 PKS 0531+19 rG 05 34 44.51221055 +19 27 21.4860450   17.7       ~ 55 1
10 ICRF J054236.1+495107 Sy1 05 42 36.13789710 +49 51 07.2337139   18.45 17.80 17.210   ~ 1492 1
11 ICRF J092703.0+390220 Sy1 09 27 03.01394144 +39 02 20.8518067   17.17 17.00 16.486   ~ 1001 1
12 ICRF J094336.9-081930 LIN 09 43 36.94453828 -08 19 30.8202783   19.401   18.100   ~ 121 2
13 3C 237.0 rG 10 08 00.0529 +07 30 16.830   21       ~ 190 0
14 ICRF J115421.7-350529 Sy1 11 54 21.7842834888 -35 05 29.079469716   18.81 17.84     ~ 129 1
15 4C 31.38 Sy2 11 56 18.7420683840 +31 28 04.676598588   19.33 18.96     ~ 138 1
16 4C 13.46 QSO 12 13 32.1707286888 +13 07 20.905849740   18.87 18.53 18   ~ 136 1
17 QSO B1245-197 QSO 12 48 23.89808243 -19 59 18.5899475   21.52 20.5     ~ 139 1
18 ICRF J131327.9+673550 G 13 13 27.98902761 +67 35 50.3599652           ~ 57 1
19 4C 32.44 QSO 13 26 16.5142 +31 54 09.522   21.367 19.822 18.882   ~ 171 1
20 7C 132816.2+252436 QSO 13 30 37.6960744824 +25 09 10.983105972   18.31 17.67     ~ 361 1
21 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4337 2
22 ICRF J134733.3+121724 Sy2 13 47 33.36161873 +12 17 24.2398927   19.28 18.44 15.718   ~ 597 3
23 ICRF J140028.6+621038 Sy2 14 00 28.64823540 +62 10 38.5885744   22.137 20.373 19.530   ~ 177 1
24 3C 298.0 QSO 14 19 08.1802187928 +06 28 34.802854680   17.12 16.79     ~ 407 1
25 QSO B1445+101 QSO 14 45 16.46525080 +09 58 36.0727447   18.58 17.78     ~ 396 1
26 ICRF J145907.5+714019 Sy1 14 59 07.58390804 +71 40 19.8668093   17.24 16.78 17.2   ~ 493 1
27 QSO B1524-136 QSO 15 26 59.44274001 -13 51 00.2643644     20.5     ~ 98 1
28 ICRF J163433.8+624535 Sy2 16 34 33.80623119 +62 45 35.8960467   21.06 20.61     ~ 215 1
29 4C 12.60 rG 16 40 47.93882656 +12 20 02.0793087   19.5       ~ 50 1
30 3C 346.0 BLL 16 43 48.605 +17 15 49.43   17.2       ~ 264 0
31 ICRF J183114.8+290710 Sy2 18 31 14.85954059 +29 07 10.2942036   21.917 20.2 20.200   ~ 74 1
32 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2258 1
33 2MASX J22502534+1419519 Sy1 22 50 25.3475290512 +14 19 52.095751140   17.28 16.97 17.243   ~ 205 1

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