2002MNRAS.337..641W

Query : 2002MNRAS.337..641W

2002MNRAS.337..641W - Mon. Not. R. Astron. Soc., 337, 641-656 (2002/December-1)

The large-scale distribution of neutral hydrogen in the Fornax region.

WAUGH M., DRINKWATER M.J., WEBSTER R.L., STAVELEY-SMITH L., KILBORN V.A., BARNES D.G., BHATHAL R., DE BLOK W.J.G., BOYCE P.J., DISNEY M.J., EKERS R.D., FREEMAN K.C., GIBSON B.K., HENNING P.A., JERJEN H., KNEZEK P.M., KORIBALSKI B., MARQUARDING M., MINCHIN R.F., PRICE R.M., PUTMAN M.E., RYDER S.D., SADLER E.M., STOOTMAN F. and ZWAAN M.A.

Abstract (from CDS):

Using data from the Hi Parkes All Sky Survey (HIPASS), we have searched for neutral hydrogen in galaxies in a region ∼25x25 deg2 centred on NGC 1399, the nominal centre of the Fornax cluster. Within a velocity search range of 300-3700 km.s–1 and to a 3σ lower flux limit of ∼40 mJy, 110 galaxies with Hi emission were detected, one of which is previously uncatalogued. None of the detections has early-type morphology. Previously unknown velocities for 14 galaxies have been determined, with a further four velocity measurements being significantly dissimilar to published values. Identification of an optical counterpart is relatively unambiguous for more than ∼90 per cent of our Hi galaxies. The galaxies appear to be embedded in a sheet at the cluster velocity which extends for more than 30° across the search area. At the nominal cluster distance of ∼20 Mpc, this corresponds to an elongated structure more than 10 Mpc in extent. A velocity gradient across the structure is detected, with radial velocities increasing by ∼500 km.s–1 from south-east to north-west. The clustering of galaxies evident in optical surveys is only weakly suggested in the spatial distribution of our Hi detections. Of 62 Hi detections within a 10° projected radius of the cluster centre, only two are within the core region (projected radius <1°) and less than 30 per cent are within 3.5°, suggesting a considerable deficit of Hi-rich galaxies in the centre of the cluster. However, relative to the field, there is a 3(±1)-fold excess of Hi-rich galaxies in the outer parts of the cluster where galaxies may be infalling towards the cluster for the first time.

Abstract Copyright: RAS

Journal keyword(s): surveys - galaxies: clusters: individual: Fornax - galaxies: evolution - large-scale structure of Universe - radio lines: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/337/641): table1.dat>

Nomenclature: Table 1: [WDW2002] HIPASS JHHMM+DDa N=110.

Simbad objects: 113

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Number of rows : 113
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 MCG-07-05-009 EmG 02 10 38.91 -40 55 05.1   14.32   13.45 14.0 ~ 38 0
2 ESO 298-23 AG? 02 14 27.47 -39 11 07.3   14.74   13.80   ~ 22 0
3 ESO 355-5 AG? 02 18 39.67 -36 31 51.9   17.24   16.24 15.7 ~ 15 0
4 ESO 298-33 AG? 02 21 28.10 -38 48 02.7   17.75   17.11   ~ 8 0
5 ESO 415-23 AG? 02 22 29.32 -28 51 20.5   16.18   15.56 15.4 ~ 14 0
6 NGC 922 EmG 02 25 04.400 -24 47 17.46   12.54 12.21 11.84   ~ 161 1
7 MCG-04-06-041 EmG 02 26 22.463 -24 17 18.81   12.87   11.89 12.8 ~ 69 0
8 MCG-06-06-013 Sy2 02 32 17.508 -35 01 48.66   13.80   12.79 13.1 ~ 56 0
9 NGC 986A AG? 02 32 41.45 -39 17 46.4   14.86 13.97 13.66   ~ 34 1
10 NGC 986 Sy1 02 33 34.3087856832 -39 02 42.128176704 11.72 11.74 10.91 10.10 11.3 ~ 192 2
11 IC 1826 EmG 02 39 03.5286574368 -27 26 34.947526632   12.86   11.94 12.8 ~ 69 0
12 MCG-04-07-013 AG? 02 39 08.22 -22 39 44.0   14.90   14.19 14.6 ~ 28 0
13 MCG-04-07-024 EmG 02 42 07.5511 -24 07 49.138   14.28   13.16 13.9 ~ 46 0
14 NGC 1079 Sy2 02 43 44.3354434608 -29 00 11.748886668   12.17 11.37 10.86 11.5 ~ 146 0
15 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1448 3
16 ESO 480-10 AG? 02 53 13.8152 -26 31 17.629   16.53   15.83   ~ 6 0
17 ESO 356-18 EmG 02 55 12.48 -36 18 00.6   15.14   14.25 14.9 ~ 47 0
18 NGC 1187 Sy1 03 02 37.5895048560 -22 52 02.479512648   11.41   10.43 11.2 ~ 228 1
19 MCG-04-08-021 AG? 03 03 50.52 -25 16 20.5   14.97   14.23 14.3 ~ 45 0
20 ESO 248-2 EmG 03 05 06.2483707156 -45 57 42.866933829   14.10   13.01 13.5 ~ 45 0
21 IC 1892 IG 03 08 27.23880 -23 03 20.7470   13.80   13.17 13.9 ~ 47 0
22 MCG-07-07-007 LSB 03 09 38.398 -41 01 54.23   13.12   12.10 12.8 ~ 78 0
23 ESO 300-16 AG? 03 10 10.48 -40 00 10.5   15.56   14.95   ~ 32 0
24 IC 1898 Sy2 03 10 19.070 -22 24 21.67   13.58   12.23 12.8 ~ 81 0
25 ESO 357-7 EmG 03 10 23.5459 -33 09 12.878   14.66   13.92 14.3 ~ 56 0
26 LEDA 705828 AG? 03 11 29.38 -31 22 56.0   17.21   17.3 17.8 ~ 10 0
27 NGC 1255 GiG 03 13 31.9885639248 -25 43 30.399262428   11.80   10.66 11.5 ~ 156 0
28 MCG-04-08-051 GiG 03 13 40.44 -25 11 17.1   13.82   12.88 13.6 ~ 63 0
29 NGC 1258 EmG 03 14 05.472 -21 46 27.20   13.98   12.95 13.4 ~ 62 0
30 ESO 481-16 LSB 03 16 09.1514 -24 11 58.692   15.42   14.64   ~ 23 0
31 MCG-06-08-002 GiC 03 16 53.3154 -35 32 29.081   13.78   12.68 13.2 ~ 75 0
32 NGC 1269 EmG 03 17 18.5785534752 -41 06 28.628735184 9.85 9.83 8.81 8.72   ~ 445 1
33 HIPASS J0317-37 EmG 03 17 28.1 -37 51 34           ~ 5 0
34 LEDA 2815803 G 03 17 38.2 -24 54 34   16.9   16.6 15.7 ~ 9 0
35 NGC 1292 EmG 03 18 14.894 -27 36 37.19   12.75   11.78 12.2 ~ 105 0
36 MCG-04-08-057 Sy2 03 18 32.7912703392 -25 50 08.122706808   13.56   12.36 12.9 ~ 65 0
37 ESO 481-19 AG? 03 18 43.37 -23 47 01.6   15.72   14.88 15.8 ~ 25 0
38 2dFGRS TGS471Z004 LSB 03 19 24.97 -32 38 58.0   15.98   15.688 16.1 ~ 20 0
39 IC 1913 EmG 03 19 34.578 -32 27 54.41   14.38   13.54 14.2 ~ 81 0
40 NGC 1302 GiG 03 19 51.2026512864 -26 03 37.946814660   11.43   9.99 10.8 ~ 151 0
41 NGC 1306 EmG 03 21 02.9690467944 -25 30 44.706113856   13.62   12.64 13.3 ~ 50 0
42 LEDA 12625 G 03 22 05.8 -37 35 12           ~ 9 0
43 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
44 NGC 1326 Sy1 03 23 56.3657298384 -36 27 52.322333040 11.69 11.43 10.54 10.02 10.9 ~ 279 2
45 NGC 1325 EmG 03 24 25.5769895640 -21 32 38.626241964   12.28 11.55 11.13 11.6 ~ 176 0
46 NGC 1326A AG? 03 25 08.50 -36 21 50.2   13.80   12.91 13.7 ~ 103 0
47 NGC 1326B GiG 03 25 20.35 -36 23 05.8   13.08   13.2 12.9 ~ 55 0
48 MCG-06-08-018 GiG 03 27 16.61 -33 29 10.9   14.69   13.69 14.3 ~ 47 0
49 NGC 1341 EmG 03 27 58.3983347688 -37 09 00.271891836   12.86   11.82   ~ 90 0
50 NGC 1351A GiG 03 28 48.718 -35 10 41.37   14.21   12.92 13.3 ~ 101 0
51 NGC 1350 Sy2 03 31 08.119 -33 37 43.10   11.20 10.52 9.77 10.6 ~ 191 0
52 MCG-05-09-011 EmG 03 31 30.6568555560 -30 12 48.136597596   13.90   13.09 13.9 ~ 94 1
53 MCG-05-09-012 Sy2 03 31 55.62 -31 20 15.5   14.07   13.17 13.8 ~ 52 0
54 MCG-04-09-024 AG? 03 33 02.25 -24 07 58.3   15.46   14.55 15.5 ~ 55 0
55 ESO 358-15 Sy2 03 33 06.85 -34 48 29.2   15.34   14.29 14.9 ~ 86 0
56 IC 1952 Sy2 03 33 26.680 -23 42 46.04   13.57   12.30 12.9 ~ 78 0
57 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
58 IC 1953 GiG 03 33 41.885 -21 28 43.03   12.41   12.3 12.1 ~ 126 0
59 NGC 1367 EmG 03 35 01.3451198496 -24 55 59.504904516   11.48   9.98 11.1 ~ 209 0
60 MCG-05-09-017 EmG 03 35 33.134 -32 27 53.55   13.90       ~ 90 0
61 IC 1970 Sy2 03 36 31.524 -43 57 24.64   12.86 12.44 11.51 12.1 ~ 69 0
62 ESO 249-8 AG? 03 37 18.863 -43 35 10.10   14.20   13.34 14.0 ~ 25 0
63 NGC 1385 EmG 03 37 28.323 -24 30 04.60 11.28 11.50 10.94 10.45 11.7 ~ 318 2
64 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
65 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
66 NGC 1398 GiG 03 38 52.130 -26 20 16.22   10.37   8.90 10.1 ~ 250 0
67 NGC 1403 AG? 03 39 10.8433655832 -22 23 19.494248388   13.86   12.62   ~ 50 0
68 NGC 1406 EmG 03 39 23.3038688087 -31 19 17.505737604   12.42   11.24 11.9 ~ 128 1
69 ESO 482-27 AG? 03 39 41.21 -23 50 39.8   16.63   15.97   ~ 12 0
70 NGC 1427A GiP 03 40 08.6854 -35 37 34.647   13.44   12.68 13.3 ~ 127 1
71 IC 1986 AG? 03 40 35.15 -45 21 20.8   14.84   14.20 14.4 ~ 35 0
72 ESO 482-32 GiP 03 40 41.44 -26 47 11.3   15.26   15.2 15.5 ~ 19 0
73 NGC 1415 EmG 03 40 56.8533432024 -22 33 52.235588808   12.47   11.08   ~ 129 1
74 NAME Wombat I GiG 03 40 58.84 -38 51 19.0   15.541   15.463 15.1 ~ 16 0
75 MCG-04-09-050 EmG 03 41 14.649 -23 50 20.09   13.69   12.46   ~ 76 0
76 MCG-06-09-019 EmG 03 41 32.607 -34 53 18.01   13.95   13.02 13.8 ~ 106 0
77 NGC 1425 EmG 03 42 11.4831633240 -29 53 36.186684252   11.61   11.6 10.9 ~ 209 0
78 NGC 1437A GiG 03 43 02.19 -36 16 24.1   13.92   13.09   ~ 87 0
79 NGC 1448 EmG 03 44 31.915 -44 38 41.38   11.46   10.24 10.9 ~ 295 1
80 ESO 358-60 GiC 03 45 12.14 -35 34 15.3   15.86   15.46 16.6 ~ 82 0
81 NGC 1437B Sy2 03 45 54.864 -36 21 24.93   13.98   12.78   ~ 96 0
82 MCG-06-09-030 Sy2 03 46 19.007 -34 56 36.83   12.57   12.3 11.9 ~ 136 0
83 MCG-07-08-008 EmG 03 47 34.12 -38 34 35.5   14.34   13.87 14.5 ~ 61 0
84 ESO 302-10 AG? 03 48 30.13 -39 25 30.1   15.49   15.0 15.3 ~ 15 0
85 ESO 249-21 AG? 03 49 17.97 -44 13 37.6   16.24   15.47 16.8 ~ 12 0
86 MCG-05-10-004 Sy2 03 49 42.255 -26 59 36.11   13.98   13.5 13.5 ~ 73 0
87 ESO 302-14 GiG 03 51 40.90 -38 27 08.0   14.84   14.54 14.8 ~ 60 0
88 ESO 359-3 EmG 03 52 00.909 -33 28 03.39   14.25   13.43 14.0 ~ 71 0
89 NGC 1476 EmG 03 52 08.79 -44 31 56.9   13.98 13.82 13.09 13.6 ~ 37 0
90 ESO 359-5 PaG 03 54 03.4 -36 03 50   15.82   15.35   ~ 16 0
91 ESO 249-26 EmG 03 54 12.90 -43 45 27.9   15.22 15.11 14.87 15.0 ~ 27 0
92 NGC 1484 EmG 03 54 17.818 -36 58 14.70   13.67   12.96 13.4 ~ 70 0
93 ESO 249-27 AG? 03 54 29.33 -44 45 12.9   15.47 14.70 14.84 14.6 ~ 32 0
94 IC 2007 EmG 03 55 22.748 -28 09 29.92   13.70   12.74 12.9 ~ 62 0
95 NGC 1487 GiP 03 55 46.5 -42 22 01   12.28 11.68 11.74 11.02 ~ 124 0
96 ESO 302-21 EmG 03 55 52.58 -40 41 03.8   15.67   15.06   ~ 21 0
97 NGC 1493 Sy2 03 57 27.4270810416 -46 12 38.513195316   11.88   11.01 11.6 ~ 149 0
98 NGC 1495 EmG 03 58 21.805 -44 27 58.50   13.28   12.38 12.7 ~ 63 0
99 ESO 249-36 LSB 03 59 15.6 -45 52 21   15.19   15.05   ~ 42 0
100 MCG-05-10-007 Sy2 04 00 41.608 -30 49 51.67   14.28   13.69 14.1 ~ 34 0
101 NGC 1512 GiP 04 03 54.281 -43 20 55.86 11.30 11.43 10.54 10.37   ~ 457 1
102 ESO 359-16 EmG 04 04 25.3 -36 10 50   15.00   14.55 15.0 ~ 31 0
103 ESO 359-22 AG? 04 08 45.58 -35 23 22.2   15.99   15.79 15.9 ~ 31 0
104 ESO 420-6 AG? 04 10 01.41 -31 15 29.9   15.23   14.41 14.4 ~ 37 0
105 ESO 359-24 EmG 04 10 57.49 -35 49 51.1   15.43   15.00 15.1 ~ 19 0
106 [PCM2000] 27 PaG 04 12 01.8 -32 51 42           ~ 2 0
107 MCG-04-11-001 EmG 04 12 41.119 -23 09 31.99 14.91 14.23 13.61 13.32 13.8 ~ 66 0
108 APMBGC 483-129-114 G 04 14 38.14 -22 48 38.0   16.42       ~ 3 0
109 ESO 360-3 AG? 04 16 09.93 -33 03 45.0   16.79   15.46   ~ 12 0
110 MCG-04-11-010 AG? 04 21 13.632 -21 50 46.07   12.75   11.95 12.3 ~ 68 0
111 ESO 484-19 EmG 04 27 19.89 -22 33 34.2   16.08   15.11 15.3 ~ 15 0
112 ESO 251-3 LSB 04 28 41.26 -46 19 16.5   16.21   15.80 15.5 ~ 16 0
113 NGC 1592 GiP 04 29 40.8436558272 -27 24 31.344240564 13.42 13.94 14.09 13.46 13.12 ~ 62 0

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