2007MNRAS.381..341B

Query : 2007MNRAS.381..341B

2007MNRAS.381..341B - Mon. Not. R. Astron. Soc., 381, 341-366 (2007/October-2)

A new search for distant radio galaxies in the Southern hemisphere - I. Sample definition and radio properties.

BRODERICK J.W., BRYANT J.J., HUNSTEAD R.W., SADLER E.M. and MURPHY T.

Abstract (from CDS):

This paper introduces a new program to find high-redshift radio galaxies in the Southern hemisphere through ultrasteep spectrum (USS) selection. We define a sample of 234 USS radio sources with spectral indices α843408≤ -1.0 (Sν∝ να) and flux densities S408 ≥ 200mJy in a region of 0.35sr, chosen by cross-correlating the revised 408MHz Molonglo Reference Catalogue, the 843MHz Sydney University Molonglo Sky Survey and the 1400MHz NRAO VLA Sky Survey in the overlap region -40° < δ < -30°. We present Australia Telescope Compact Array (ATCA) high-resolution 1384 and 2368MHz radio data for each source, which we use to analyse the morphological, spectral index and polarization properties of our sample. We find that 85 per cent of the sources have observed-frame spectral energy distributions that are straight over the frequency range 408-2368MHz, and that, on average, sources with smaller angular sizes have slightly steeper spectral indices and lower fractional linear polarization. Fractional polarization is anticorrelated with flux density at both 1400 and 2368MHz. We also use the ATCA data to determine observed-frame Faraday rotation measures for half of the sample.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): polarization - surveys - galaxies: active - radio continuum: galaxies - radio continuum: general

VizieR on-line data: <Available at CDS (J/MNRAS/381/341): table3.dat table4.dat table5.dat notes.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 65

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Number of rows : 65
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 NVSS J000742-304325 Rad 00 07 42.82 -30 43 24.3           ~ 4 1
2 PKS 0008-42 rG 00 10 52.51756175 -41 53 10.7788843   22.0       ~ 74 1
3 NVSS J001506-330155 Rad 00 15 06.39 -33 01 56.2           ~ 5 1
4 PMN J0034-3724 Rad 00 34 45.74 -37 23 49.0           ~ 4 1
5 NVSS J004000-303333 Rad 00 40 00.24 -30 33 33.7           ~ 5 1
6 NVSS J004230-343733 Rad 00 42 30.42 -34 37 34.9           ~ 5 1
7 NVSS J005320-322756 Rad 00 53 20.82 -32 27 55.4           ~ 4 1
8 NVSS J005509-361736 Rad 00 55 09.69 -36 17 38.1           ~ 4 1
9 NVSS J005837-333133 Rad 00 58 37.14 -33 31 37.4           ~ 3 1
10 PKS J0106-3256 Rad 01 06 19.02 -32 57 13.8           ~ 3 1
11 EDCC 523 ClG 01 06 20.28 -32 57 32.7           ~ 3 0
12 NVSS J011606-331241 Rad 01 16 06.80 -33 12 43.2           ~ 6 1
13 NVSS J012443-310820 Rad 01 24 43.704 -31 08 21.13           ~ 3 1
14 NVSS J012814-305017 Rad 01 28 14.100 -30 50 14.19           ~ 3 1
15 NVSS J013554-332513 Rad 01 35 53.961 -33 25 08.19           ~ 4 1
16 NVSS J014159-343908 Rad 01 41 59.213 -34 39 05.05           ~ 3 1
17 NVSS J014501-332648 Rad 01 45 00.878 -33 26 39.66           ~ 3 1
18 ICRF J015537.0-404842 Sy2 01 55 37.05930363 -40 48 42.3570102   18.5       ~ 53 1
19 NVSS J015745-310557 Rad 01 57 45.058 -31 05 54.75           ~ 4 1
20 PMN J0202-3748 Rad 02 02 01.50 -37 47 50.0           ~ 4 1
21 NVSS J021208-343111 Rad 02 12 08.998 -34 31 09.96           ~ 4 1
22 NVSS J021759-301512 Rad 02 18 00.075 -30 15 09.24           ~ 4 1
23 NVSS J022825-302005 Rad 02 28 24.979 -30 19 58.71           ~ 5 1
24 NVSS J025521-333212 Rad 02 55 21.232 -33 32 14.98           ~ 3 1
25 NVSS J030026-322103 Rad 03 00 26.302 -32 21 02.44           ~ 4 1
26 NVSS J030431-315308 rG 03 04 31.661 -31 53 11.08           ~ 7 1
27 NVSS J032558-320154 Rad 03 25 59.163 -32 01 55.71           ~ 5 1
28 PMN J0335-3123 Rad 03 35 40.469 -31 24 07.61           ~ 4 1
29 PMN J0340-3316 Rad 03 40 27.25 -33 17 11.8           ~ 5 1
30 NVSS J110350-352643 Rad 11 03 50.632 -35 26 44.47           ~ 4 1
31 PMN J1115-3914 Rad 11 15 46.85 -39 14 09.3           ~ 5 1
32 PMN J1119-3630 rG 11 19 21.75 -36 31 41.3           ~ 8 1
33 PKS 1135-391 Rad 11 38 01.43 -39 22 52.4           ~ 7 1
34 PKS 1232-41 rG 12 35 41.91 -41 53 18.0     17.5     ~ 22 1
35 PKS J1311-3724 Rad 13 11 02.28 -37 25 17.0           ~ 5 1
36 [VBM97] J1324-3138 rG 13 24.0 -31 38           ~ 9 0
37 ACO 3556 ClG 13 24 06.2 -31 39 38           ~ 159 0
38 PMN J1403-3846 Rad 14 03 03.81 -38 46 24.9           ~ 4 1
39 NVSS J142013-384114 Rad 14 20 13.65 -38 41 15.3           ~ 4 1
40 PMN J1450-3800 Rad 14 50 45.0 -38 00 14           ~ 4 1
41 PKS 1458-391 rG 15 01 34.75837327 -39 18 39.4276396           ~ 33 1
42 NVSS J154513-344834 Rad 15 45 13.894 -34 48 36.60           ~ 4 1
43 PMN J1615-6039 rG 16 14 50.7 -60 38 11           ~ 17 1
44 ESO 137-6 rG 16 15 03.864 -60 54 26.14   13.08 12.83 11.33   ~ 119 0
45 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2
46 NVSS J202720-341150 Rad 20 27 20.931 -34 11 54.96           ~ 5 1
47 GLEAM J202945-344810 QSO 20 29 45.8129533224 -34 48 15.590190456           ~ 7 1
48 NVSS J203613-304921 Rad 20 36 13.07 -30 49 20.6           ~ 3 1
49 NVSS J203847-313237 Rad 20 38 46.937 -31 32 35.69           ~ 3 1
50 NVSS J213238-335318 rG 21 32 38.695 -33 53 21.23           ~ 8 1
51 PMN J2141-3322 Rad 21 41 14.358 -33 23 07.00           ~ 6 1
52 NVSS J215009-341052 Rad 21 50 09.238 -34 10 56.85           ~ 4 1
53 NVSS J215029-310457 Rad 21 50 29.968 -31 04 58.21           ~ 3 1
54 PMN J2154-3629 Rad 21 54 55.04 -36 30 07.8           ~ 5 1
55 PKS 2211-388 rG 22 14 38.56966 -38 35 45.0098           ~ 34 1
56 NVSS J221650-341008 Rad 22 16 50.518 -34 10 08.68           ~ 4 1
57 PMN J2232-3656 Rad 22 33 04.99 -36 56 58.7           ~ 5 1
58 NVSS J225719-343954 Rad 22 57 19.56 -34 39 53.9           ~ 8 1
59 NVSS J230527-360534 Rad 23 05 27.64 -36 05 31.9           ~ 4 1
60 NVSS J231727-352606 Rad 23 17 27.30 -35 26 03.2           ~ 9 1
61 NVSS J232007-302127 Rad 23 20 07.70 -30 21 27.2           ~ 4 1
62 NVSS J232058-365157 Rad 23 20 58.16 -36 51 57.4           ~ 3 1
63 NVSS J233034-330009 rG 23 30 34.48 -33 00 12.2           ~ 8 1
64 PMN J2335-3433 Rad 23 35 35.22 -34 33 31.9           ~ 5 1
65 PKS 2339-353 rG 23 41 45.85196 -35 06 22.1963           ~ 22 1

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