2003MNRAS.339.1203K

Query : 2003MNRAS.339.1203K

2003MNRAS.339.1203K - Mon. Not. R. Astron. Soc., 339, 1203-1222 (2003/March-2)

ATCA HI observations of the peculiar galaxy IC 2554.

KORIBALSKI B., GORDON S. and JONES K.

Abstract (from CDS):

ATCA HI and radio continuum observations of the peculiar southern galaxy IC 2554 and its surroundings reveal typical signatures of an interacting galaxy group. We detected a large HI cloud between IC 2554 and the elliptical galaxy NGC 3136B. The gas dynamics in IC 2554 itself, which is sometimes described as a colliding pair, are surprisingly regular, whereas NGC 3136B was not detected. The HI cloud, which emerges from IC 2554 as a large arc-shaped plume, has a size of ∼30 kpc, larger than that of IC 2554. The total HI mass of the IC 2554 system is ∼2x109 M☉, one-third of which resides in the HI cloud. It is possible that tidal interaction between IC 2554 and NGC 3136B caused this spectacular HI cloud, but the possibility of IC 2554 being a merger remnant is also discussed. We also detected HI gas in the nearby galaxies ESO 092-G009 and RKK 1959 and an associated HI cloud, ATCA J1006-6710. Together they have an HI mass of ∼4.6x108 M☉. Another new HI source, ATCA J1007-6659, with an HI mass of only ∼2.2x107 M☉ was detected roughly between IC 2554 and ESO 092-G009 and corresponds to a face-on low surface brightness dwarf galaxy. Star formation is evident only in the galaxy IC 2554 with a rate of ∼4 M☉.yr–1.

Abstract Copyright: RAS

Journal keyword(s): galaxies: individual: IC 2554 - galaxies: individual: NGC 3136B - galaxies: individual: ESO 092-G009 - galaxies: individual: RKK 1959 - galaxies: interactions

Nomenclature: Fig.2, Table 3: [KGJ2003] ATCA JHHMM+DDMM N=2.

Simbad objects: 28

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Number of rows : 28
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 NGC 520 AGN 01 24 35.07120 +03 47 32.6760 12.41 12.24 11.42     ~ 528 3
2 NGC 2163 RNe 06 07 49.5 +18 39 27           ~ 21 1
3 NGC 2207 AG? 06 16 22.0336889136 -21 22 21.759218400   11.48 10.65 10.21 11.9 ~ 301 4
4 NGC 2146 AGN 06 18 37.710 +78 21 25.27 11.67 11.38 10.59     ~ 765 2
5 ICRF J082526.8-501038 QSO 08 25 26.8673494560 -50 10 38.484054768   20.94       ~ 139 1
6 ESO 92-3 AG? 09 59 28.224 -67 18 14.93   15.03       ~ 11 0
7 2MASX J10041355-6648438 GiG 10 04 13.4898419784 -66 48 44.221691736   15.0       ~ 16 0
8 NGC 3136 GiG 10 05 48.0247938960 -67 22 40.395096300   11.60 11.00 10.05   ~ 101 0
9 ESO 92-9 AG? 10 05 59.9903 -67 03 46.350   15.83   14.77   ~ 10 0
10 [KGJ2003] ATCA J1006-6710 HI 10 06 20 -67 09.2           ~ 2 0
11 LEDA 2792219 AG? 10 06 37.29 -67 06 48.9           ~ 6 0
12 [KGJ2003] ATCA J1007-6659 HI 10 07 29 -66 58.8           ~ 2 0
13 IC 2554 AG? 10 08 50.563 -67 01 51.07   12.43 13.20 11.24 11.9 ~ 66 0
14 NGC 3136B GiG 10 10 12.9524527944 -67 00 18.067788360   13.32   11.75   ~ 54 0
15 HD 309888 * 10 10 44.6615501304 -67 00 39.405842568   10.47 9.09     K5 4 0
16 ESO 92-14 GiG 10 10 52.130 -66 38 50.72   13.38   11.75   ~ 22 0
17 LEDA 100071 AG? 10 15 43.4891218080 -67 55 26.153497164   16.5       ~ 9 0
18 ESO 92-21 GiG 10 21 05.5193421384 -66 29 31.097169744   13.89   13.5 13.3 ~ 32 0
19 NGC 3226 rG 10 23 27.0064075320 +19 53 54.674937420   14.32 13.33     ~ 440 1
20 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
21 NGC 3310 AGN 10 38 45.85707 +53 30 11.8940   12.45 12.15     ~ 809 1
22 QSO B1057-797 BLL 10 58 43.30979475 -80 03 54.1598058   19.08   17.31   ~ 211 1
23 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
24 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
25 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
26 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
27 NGC 5195 GiG 13 29 59.590 +47 15 58.06 10.76 10.45 9.55 9.31   ~ 816 3
28 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2

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