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

Full paper

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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 - 2024	#notes
1	NGC 520	AG?	01 24 34.90	+03 47 29.4	12.41	12.24	11.42			~	513	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	~	289	3
4	NGC 2146	SBG	06 18 37.710	+78 21 25.27	11.67	11.38	10.59			~	721	2
5	ICRF J082526.8-501038	QSO	08 25 26.8673494560	-50 10 38.484054768		20.94				~	133	1
6	ESO 92-3	AG?	09 59 28.224	-67 18 14.93		15.03				~	10	0
7	2MASX J10041355-6648438	GiG	10 04 13.4898419784	-66 48 44.221691736		15.0				~	15	0
8	NGC 3136	GiG	10 05 48.0247938960	-67 22 40.395096300		11.60	11.00	10.05		~	100	0
9	ESO 92-9	AG?	10 05 59.9903	-67 03 46.350		15.83		14.77		~	9	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	~	64	0
14	ESO 92-13	GiG	10 10 12.9524527944	-67 00 18.067788360		13.32		11.75		~	53	0
15	HD 309888	*	10 10 44.6615501304	-67 00 39.405842568		10.47	9.09			K5	3	0
16	ESO 92-14	GiG	10 10 52.130	-66 38 50.72		13.38		11.75		~	21	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	~	31	0
19	NGC 3226	GiP	10 23 27.0064075320	+19 53 54.674937420		14.32	13.33			~	428	1
20	NGC 3227	Sy1	10 23 30.5765149296	+19 51 54.282206700		12.61	11.79			~	1703	1
21	NGC 3310	AGN	10 38 45.85707	+53 30 11.8940		12.45	12.15			~	773	1
22	QSO B1057-797	BLL	10 58 43.30979475	-80 03 54.1598058		19.08		17.31		~	193	0
23	NGC 4038	EmG	12 01 53.002	-18 52 03.32		10.91		9.74	11.0	~	1333	1
24	NAME Antennae	IG	12 01 53.170	-18 52 37.92						~	1692	0
25	NGC 4039	GiP	12 01 53.51	-18 53 10.3		11.08		9.77		~	1161	1
26	M 51	Sy2	13 29 52.698	+47 11 42.93		9.26	8.36	8.40		~	4330	4
27	NGC 5195	GiP	13 29 59.590	+47 15 58.06	10.76	10.45	9.55	9.31		~	778	3
28	ICRF J193925.0-634245	Sy2	19 39 25.0245304992	-63 42 45.640373400		18.87	18.37	17.64		~	1226	1

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