2003A&A...404..861V


Query : 2003A&A...404..861V

2003A&A...404..861V - Astronomy and Astrophysics, volume 404, 861-870 (2003/6-4)

Observations of HI absorbing gas in compact radio sources at cosmological redshifts.

VERMEULEN R.C., PIHLSTROEM Y.M., TSCHAGER W., DE VRIES W.H., CONWAY J.E., BARTHEL P.D., BAUM S.A., BRAUN R., BREMER M.N., MILEY G.K., O'DEA C.P., ROETTGERING H.J.A., SCHILIZZI R.T., SNELLEN I.A.G. and TAYLOR G.B.

Abstract (from CDS):

We present an overview of the occurrence and properties of atomic gas associated with compact radio sources at redshifts up to z=0.85. Searches for HI 21cm absorption were made with the Westerbork Synthesis Radio Telescope at UHF-high frequencies (725-1200MHz). Detections were obtained for 19 of the 57 sources with usable spectra (33%). We have found a large range in line depths, from τ=0.16 to τ≤0.001. There is a substantial variety of line profiles, including Gaussians of less than 10km/s, to more typically 150km/s, as well as irregular and multi-peaked absorption profiles, sometimes spanning several hundred km/s. Assuming uniform coverage of the entire radio source, we obtain column depths of atomic gas between 1x1019 and 3.3x1021(Tsp/100K)(1/f)cm–2. There is evidence for significant gas motions, but in contrast to earlier results at low redshift, there are many sources in which the HI velocity is substantially negative (up to v=-1420km/s) with respect to the optical redshift, suggesting that in these sources the atomic gas, rather than falling into the centre, may be be flowing out, interacting with the jets, or rotating around the nucleus.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: evolution - galaxies: ISM - radio lines: galaxies

Simbad objects: 63

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Number of rows : 63
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 QSO B0023-263 BLL 00 25 49.1657525184 -26 02 12.888933288   20.30 19.5 18.084   ~ 151 1
2 3C 49 rG 01 41 09.10 +13 53 28.0   22.327 20.920 20.876   ~ 179 1
3 QSO J0157-1043 QSO 01 57 41.6192171016 -10 43 40.965009312   17.32 17.09 17.039   ~ 74 1
4 ICRF J020157.1-113233 Sy1 02 01 57.1794759192 -11 32 33.435766068   16.54 16.40 16.073   ~ 204 1
5 7C 022118.10+273638.00 Sy1 02 24 12.2865158736 +27 50 11.538285648   19.502 18 18.263   ~ 205 1
6 NGC 1052 GiP 02 41 04.7997864552 -08 15 20.761481016 11.84 11.41 10.47 10.71   ~ 1225 2
7 3C 93.1 BLL 03 48 46.9073426592 +33 53 15.461439576   20.723   19.110   ~ 128 1
8 3C 99.0 Sy2 04 01 07.6 +00 36 33   20.200 19.010 18.532   ~ 104 1
9 ICRF J041045.6+765645 AGN 04 10 45.6108324 +76 56 45.313088   21 22.0 21.200   ~ 154 1
10 PKS 0428+205 rG 04 31 03.7614907 +20 37 34.264207   22.174   19.085   ~ 177 1
11 ICRF J052109.8+163822 Sy1 05 21 09.8855216664 +16 38 22.054553988   19.37 18.84 18.480   ~ 803 1
12 ICRF J054236.1+495107 Sy1 05 42 36.1380355416 +49 51 07.232213736   18.45 17.80 17.210   ~ 1383 1
13 [VV2006] J055652.6-024105 Sy2 05 56 52.6235409000 -02 41 05.530026696   20.968   19.533   ~ 31 1
14 2C 524 Sy2 06 09 32.701768 +48 04 17.04207   21.198 18.00 18.767   ~ 173 1
15 3C 173.1 rG 07 09 18.2015614632 +74 49 31.815420780   19.982 18.9 17.540   ~ 128 1
16 ICRF J074110.7+311200 Sy1 07 41 10.7033429280 +31 12 00.230596416   17.02 16.89 16.322   ~ 427 1
17 3C 196.1 AGN 08 15 27.825 -03 08 27.67   18.490 16.940 16.797   ~ 118 1
18 ICRF J083454.9+553421 Sy2 08 34 54.9022011432 +55 34 21.085082256   20.75 19.45 17.180   ~ 266 2
19 ICRF J084047.5+131223 Sy1 08 40 47.5881972768 +13 12 23.557974480   18.58 18.15 17.622   ~ 403 1
20 3C 213.1 AGN 09 01 05.2614565176 +29 01 46.939089828   18.84 18.08 18.600   ~ 120 1
21 ICRF J090933.4+425346 Sy2 09 09 33.4981341384 +42 53 46.454750376   19.98 19.42 18.220   ~ 477 0
22 ICRF J092703.0+390220 Sy1 09 27 03.0138528936 +39 02 20.850343332   17.17 17.00 16.486   ~ 959 1
23 3C 220.3 G 09 39 23.40 +83 15 26.2   20.5   20.140   ~ 88 1
24 ICRF J094336.9-081930 LIN 09 43 36.9444590 -08 19 30.818298   19.401   18.100   ~ 115 2
25 NVSS J095447+743556 rG 09 54 47.4427796 +74 35 57.144920       21.700   ~ 35 1
26 3C 236.0 BLL 10 06 01.7484699264 +34 54 10.440080208   15.97       ~ 429 2
27 ICRF J103507.0+562846 Sy2 10 35 07.0400250 +56 28 46.795465   20.2 21.244 20.200   ~ 181 1
28 ICRF J112027.8+142054 G 11 20 27.80726 +14 20 54.9914   20 20.935 20.100   ~ 152 1
29 Ton 599 QSO 11 59 31.8338889192 +29 14 43.826803116   14.80 14.41 17.652 13.39 ~ 850 1
30 3C 268.3 Sy1 12 06 24.70656 +64 13 36.8760   21.847 20.790 19.910   ~ 184 1
31 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1167 0
32 2E 2879 Sy1 12 52 26.3561235816 +56 34 19.573734864   18.42 18.11 17.660   ~ 279 2
33 PKS 1306-09 rG 13 08 39.1573432224 -09 50 32.424542340   20.767 20.500 18.439   ~ 72 1
34 ICRF J131337.8+545823 Sy2 13 13 37.85316548 +54 58 23.8993959     21.735 20.374   ~ 31 1
35 4C 32.44 QSO 13 26 16.5156056760 +31 54 09.481248180   21.367 19.822 18.882   ~ 161 1
36 ICRF J134733.3+121724 Sy2 13 47 33.3634536792 +12 17 24.214209216   19.28 18.44 15.718   ~ 551 3
37 NVSS J135740+435400 rG 13 57 40.5921897 +43 53 59.769211     22.708 20.951   ~ 42 1
38 ICRF J140028.6+621038 Sy2 14 00 28.6484960 +62 10 38.588791   22.137 20.373 19.530   ~ 168 1
39 QSO B1404+286 BLL 14 07 00.3941769384 +28 27 14.692128372   16.13 15.35 10.29   ~ 724 2
40 3C 299 rG 14 21 05.6960 +41 44 49.260   20.496 19.330 18.560   ~ 179 1
41 8C 1443+773 Sy2 14 43 14.0 +77 07 28   19   18.730   ~ 143 1
42 4C 14.60 BLL 15 40 49.4896705848 +14 47 45.909368088   17.72 17.30 17.240   ~ 392 1
43 ICRF J154609.5+002624 Bla 15 46 09.5314561 +00 26 24.614551   19.730 18.900 19.5   ~ 78 1
44 4C 69.21 QSO 16 42 07.8484347528 +68 56 39.767837172   19.723   19.219   ~ 291 1
45 QSO J1658+0741 QSO 16 58 09.0115232160 +07 41 27.544209360   19.993 19.5 19.598   ~ 161 1
46 [VV96] J181536.8+612711 BLL 18 15 36.7922125728 +61 27 11.647037484   21.272   19.122   ~ 35 1
47 4C 39.56 Sy1 18 21 20.8979332560 +39 42 44.862056676   19.598   18.135   ~ 62 1
48 ICRF J182314.1+793849 Sy2 18 23 14.1015133920 +79 38 48.994631700   19.269 16.70 17.415   ~ 64 1
49 ICRF J182931.7+484446 Sy1 18 29 31.7809732968 +48 44 46.160168892   17.05 16.81 16.860   ~ 658 1
50 ICRF J183114.8+290710 Sy2 18 31 14.8601293 +29 07 10.294403   21.917 20.2 20.200   ~ 70 1
51 NVSS J184535+354116 rG 18 45 35.1088474 +35 41 16.726462   19.830   21.900   ~ 61 0
52 ICRF J194431.5+544807 BLL 19 44 31.5116147 +54 48 07.062154   21.732   18.591   ~ 67 1
53 QSO B1946+708 BLL 19 45 53.5247142432 +70 55 48.706796172   18.726 16.70 17.199   ~ 134 2
54 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2237 2
55 ICRF J202206.6+613658 Sy2 20 22 06.6835988160 +61 36 58.816893852     19.5 17.58   ~ 310 1
56 ICRF J205252.0+363535 Sy2 20 52 52.0549923 +36 35 35.300002   22.083   21.200   ~ 96 1
57 ICRF J213750.0-204231 Sy1 21 37 50.0031446184 -20 42 31.712827428   20.400 19.4 19.286   ~ 89 1
58 2MASX J22502534+1419519 Sy1 22 50 25.3475290512 +14 19 52.095751140   17.28 16.97 17.243   ~ 197 1
59 3C 455.0 Sy2 22 55 03.9 +13 13 35   19.535 19.590 19.190   ~ 190 2
60 2C 1883 Sy2 23 16 35.1933566880 +04 05 18.297101076   17.54 16.68 17.220   ~ 283 1
61 3C 460 AGN 23 21 28.4 +23 46 48   20.315   18.468   ~ 87 2
62 ICRF J234403.7+822640 Sy2 23 44 03.8302221504 +82 26 40.345410408   21.769 20.5 20.220   ~ 93 1
63 ICRF J235509.4+495008 BLL 23 55 09.4576071696 +49 50 08.348530416   21.101   18.400   ~ 257 1

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2022.05.24-12:14:47

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