2001MNRAS.325..693H

C.D.S. - SIMBAD4 rel 1.7 - 2021.01.22CET21:30:55

2001MNRAS.325..693H - Mon. Not. R. Astron. Soc., 325, 693-706 (2001/August-1)

X-ray luminosities of galaxies in groups.

HELSDON S.F., PONMAN T.J., O'SULLIVAN E. and FORBES D.A.

Abstract (from CDS):

We have derived the X-ray luminosities of a sample of galaxies in groups, making careful allowance for contaminating intragroup emission. The L_X:L_B and L_X:L_FIR relations of spiral galaxies in groups appear to be indistinguishable from those in other environments, however the elliptical galaxies fall into two distinct classes. The first class is central-dominant group galaxies, which are very X-ray luminous and may be the focus of group cooling flows. All other early-type galaxies in groups belong to the second class, which populates an almost constant band of L_X/L_B over the range 9.8<logL_B<11.3. The X-ray emission from these galaxies can be explained by a superposition of discrete galactic X-ray sources together with a contribution from hot gas lost by stars, which varies a great deal from galaxy to galaxy. In the region where the optical luminosity of the non-central group galaxies overlaps with the dominant galaxies, the dominant galaxies are over an order of magnitude more luminous in X-rays.

We also compared these group galaxies with a sample of isolated early-type galaxies, and used previously published work to derive L_X:L_B relations as a function of environment. The non-dominant group galaxies have mean L_X/L_B ratios very similar to those of isolated galaxies, and we see no significant correlation between L_X/L_B and environment. We suggest that previous findings of a steep L_X:L_B relation for early-type galaxies result largely from the inclusion of group-dominant galaxies in samples.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: ISM - galaxies: spiral - X-rays: galaxies

Simbad objects: 210

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Number of rows : 210

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2021	#notes
1	NGC 311	GiG	00 57 32.7250889479	+30 16 50.641842027	14.57	14.00	13.00			~	49	1
2	NGC 315	LIN	00 57 48.88335	+30 21 08.8122	12.80	12.20	11.16	11.26		~	717	2
3	NAME Pisces Cluster	ClG	00 58 25.0	+30 39 11						~	119	1
4	NGC 373	GiG	01 06 58.2131259897	+32 18 30.419184746						~	14	0
5	UGC 679	GiG	01 07 03.7	+32 23 22			16.6			~	38	0
6	NGC 375	IG	01 07 05.9208650706	+32 20 53.213909974		16.5				~	51	0
7	NGC 379	GiG	01 07 15.7046811709	+32 31 13.627070499		14.0				~	70	1
8	NGC 380	GiG	01 07 17.579	+32 28 58.13		13.9				~	79	1
9	NGC 383	rG	01 07 24.95870	+32 24 45.2140		13.6	12.14			~	725	3
10	NGC 384	GiG	01 07 25.017	+32 17 33.91		14.3				~	76	1
11	NGC 385	GiG	01 07 27.227	+32 19 11.51		14.3				~	76	1
12	NAME NGC 383 Group	GrG	01 07 27.7	+32 23 59		11.1	14.1			~	78	0
13	NGC 386	GiG	01 07 31.3076836206	+32 21 42.937253771		15.4				~	54	1
14	NGC 388	GiG	01 07 47.197	+32 18 35.22		15.5				~	37	1
15	NGC 390	GiG	01 08 12.976	+32 27 12.82						~	16	0
16	NAME NGC 524 Group	GrG	01 24 01.6	+09 27 37		11.2				~	32	0
17	NGC 518	GiG	01 24 17.6508909378	+09 19 51.207425683		14.4				~	51	0
18	NGC 524	GiP	01 24 47.707	+09 32 19.65		11.5				~	427	1
19	2MASX J01250455+0142320	GiG	01 25 04.5288615756	+01 42 32.365471040						~	6	0
20	2MASX J01251208+0144500	GiG	01 25 12.0838414063	+01 44 49.693578961		16.57				~	9	0
21	NGC 532	GiG	01 25 17.348	+09 15 50.71		13.5				~	83	0
22	2MASX J01252476+0143245	GiG	01 25 24.7601226459	+01 43 24.747835324						~	7	0
23	NAME NGC 533 Group	GrG	01 25 29.1	+01 48 17						~	56	0
24	NGC 533	GiG	01 25 31.432	+01 45 33.57		13.1	14.11			~	208	0
25	MCG+00-04-135	GiG	01 25 43.2759268143	+01 54 23.076051015		16				~	7	0
26	2MASX J01254817+0145225	GiG	01 25 48.1506731360	+01 45 22.792714081						~	6	0
27	2MASX J01560535+0546156	GiG	01 56 05.358	+05 46 15.66		15.5				~	10	0
28	MCG+01-06-002	GiG	01 56 12.0148386986	+05 35 18.887659856		15.0				~	22	0
29	2MASX J01561614+0536106	GiG	01 56 16.148	+05 36 10.67						~	4	0
30	IC 1751	GiG	01 56 19.0677758083	+05 39 07.825987625		15.1				~	26	0
31	NGC 741	rG	01 56 20.959	+05 37 43.77		13.2				~	267	2
32	NAME NGC 741 Group	GrG	01 56 22	+05 37.6			14.3			~	51	0
33	MCG+01-06-009	GiG	01 56 36.8134212111	+05 48 14.879506687		15.4				~	15	0
34	MCG+00-06-033	GiG	02 07 25.2891481956	+02 06 58.199700521		15.94		13.96		~	23	0
35	UGC 1617	GiG	02 07 34.115	+02 06 55.47		15.1		13.41		~	41	0
36	UGC 1618	GiG	02 07 37.5121456393	+02 10 50.625431136		15.3		13.69		~	42	0
37	UGC 1618 B	G	02 07 37.7845141337	+02 11 24.906257160		16.73		15.35		~	20	0
38	HCG 15	CGG	02 07 39.0	+02 08 18						~	67	0
39	UGC 1620	G	02 07 39.7604757026	+02 08 58.873390610		14.91		13.34		~	42	0
40	UGC 1624	GiG	02 07 53.061	+02 10 03.49		15.2		13.08		~	43	0
41	NGC 821	G	02 08 21.150	+10 59 41.53		12.210	11.310	10.739	9.744	~	542	0
42	NGC 833	Sy2	02 09 20.846	-10 07 59.11		14.02	13.00	12.75		~	160	0
43	NGC 835	Sy2	02 09 24.606	-10 08 09.31		13.29	12.45	12.24		~	172	0
44	NGC 838	LIN	02 09 38.562	-10 08 46.12		13.72		12.65		~	171	0
45	HCG 16	CGG	02 09 40.82	-10 11 02.0						~	157	0
46	NGC 839	GiG	02 09 42.731	-10 11 01.64		13.98	11.42	12.70		~	136	0
47	NGC 993	GiG	02 36 46.044	+02 03 01.53		14.9				~	24	0
48	RXC J0252.8-0116	ClG	02 52 49.4	-01 16 27						~	100	0
49	NGC 1132	GiG	02 52 51.82	-01 16 29.0		13.9		12.16		~	149	0
50	ACO S 373	ClG	03 38 30	-35 27.3						~	1582	0
51	NGC 1587	GiP	04 30 39.921	+00 39 42.16		13.3				~	128	0
52	NGC 1588	GiP	04 30 43.86	+00 39 52.8		14.1				~	78	0
53	NGC 1589	GiG	04 30 45.4359751199	+00 51 49.225616468		13.8				~	59	0
54	NAME NGC 1587 Group	GrG	04 30 46.1	+00 24 25		12.1				~	21	0
55	UGC 3072	G	04 31 08.80	+00 50 35.9		18				~	7	0
56	LEDA 16571	G	05 01 35.3	-04 15 24		18.53		17.06		~	27	0
57	2MFGC 4113	G	05 01 35.550	-04 15 47.42		15.35		14.73		~	59	0
58	HCG 31	CGG	05 01 37	-04 15.4						~	124	0
59	2MASX J05013782-0415294	G	05 01 37.832	-04 15 28.48		13.44		12.76		~	68	1
60	NGC 1741	IG	05 01 38.3	-04 15 25		13.7		13.02	13.6	~	252	0
61	NGC 2110	Sy2	05 52 11.3760694860	-07 27 22.489931610		14.77	13.51	11.86		~	598	1
62	NGC 2271	G	06 42 52.996	-23 28 33.38		13.17		11.67		~	44	0
63	NGC 2418	IG	07 36 37.522	+17 53 02.31		13.7				~	57	0
64	NGC 2560	LIN	08 19 51.8910770440	+20 59 05.971596888		14.9				~	53	0
65	2MASX J08195880+2103581	GiG	08 19 58.804	+21 03 58.15		15.7				~	43	0
66	MCG+04-20-029	Sy2	08 20 10.8159548533	+21 04 08.285557666		15.5				~	38	0
67	UGC 4344	GiG	08 20 16.5691685439	+20 52 30.277755016		15.5				~	36	0
68	NGC 2562	LIN	08 20 23.656	+21 07 53.34		14.0				~	61	0
69	NAME NGC 2563 Group	GrG	08 20 24.4	+21 05 46						~	39	0
70	NGC 2563	GiG	08 20 35.680	+21 04 04.30		13.7	12.39			~	141	1
71	2MASX J08212638+2107505	GiC	08 21 26.3707452500	+21 07 51.008024497		15.7				~	16	0
72	NGC 2865	GiG	09 23 30.205	-23 09 41.37		12.39	11.43	11.06		~	228	0
73	LEDA 851984	GiG	09 59 36.9	-19 40 44			16.26		15.16	~	8	0
74	HCG 42	CGG	10 00 13.1	-19 38 24						~	96	0
75	NGC 3091	BiC	10 00 14.125	-19 38 11.32		12.04	10.61	10.56	9.25	~	163	0
76	NGC 3096	GiG	10 00 33.1198503321	-19 39 42.954460076		14.08	13.09	13.03	11.75	~	43	0
77	NGC 3185	GiP	10 17 38.5632620545	+21 41 17.601414448		12.99	12.17	12.37		~	261	1
78	NGC 3187	GiP	10 17 47.8695015096	+21 52 24.005791156	13.71	13.91	13.44	14.06		~	146	1
79	HCG 44	CGG	10 18 00	+21 48.7						~	77	0
80	NGC 3189	GiP	10 18 05.643	+21 49 54.98	12.60	12.12	11.15	11.14		~	360	2
81	NGC 3193	GiP	10 18 24.884	+21 53 38.32	12.29	11.83	10.88	12.19		~	269	1
82	2MASX J10374052-2703284	GiC	10 37 40.5362929606	-27 03 28.939571284		16.52		14.75		~	41	0
83	2MASX J10374157-2702394	GiC	10 37 41.5569136393	-27 02 39.942257292		17.48		15.62		~	37	0
84	HCG 48	CGG	10 37 45.6	-27 04 50						~	54	0
85	IC 2597	GiG	10 37 47.344	-27 04 52.46		12.75		11.08		~	95	0
86	ESO 501-59	EmG	10 37 49.5111822005	-27 07 16.158451393		14.21	13.55	13.13		~	56	0
87	NGC 3599	GiP	11 15 26.9498387938	+18 06 37.431040640		13.0				~	182	0
88	NGC 3605	GiG	11 16 46.622	+18 01 01.71		12.7				~	245	0
89	UGC 6296	GiG	11 16 51.086	+17 47 53.75		14.3				~	45	0
90	[VV2006] J111654.8+180304	QSO	11 16 54.657	+18 03 06.51		13.84	12.76			~	439	0
91	NGC 3608	LIN	11 16 58.967	+18 08 54.71		11.7				~	481	0
92	NAME NGC 3607 Group	GrG	11 17 55.9	+18 07 35		9.9				~	51	0
93	MCG+04-27-027	GiG	11 22 13.2736085929	+24 19 01.798642515		15.41		13.87		~	26	0
94	IC 2759	LIN	11 22 14.220	+24 18 00.49		15.5		13.78		~	28	0
95	HCG 51	CGG	11 22 21.6	+24 19 41		14.9				~	77	0
96	NGC 3651	EmG	11 22 26.352	+24 17 56.80		14.6		12.68		~	45	0
97	NGC 3653	EmG	11 22 30.0584490455	+24 16 45.504115278		15.0		12.30		~	33	0
98	MCG+04-27-030	EmG	11 22 30.5344612619	+24 17 59.657519963		15.81		12.97		~	20	0
99	NAME NGC 3665 Group	GrG	11 23 30.6	+38 43 31		11.2				~	22	1
100	NGC 3658	GiG	11 23 58.2658709481	+38 33 44.352704118		13.3				~	68	0
101	NGC 3665	rG	11 24 43.630	+38 45 46.05	13.71	13.26	11.62			~	305	1
102	NGC 4060	LIN	12 04 00.9975042063	+20 20 14.661004956		15.6				~	25	0
103	NGC 4055	EmG	12 04 01.471	+20 13 56.34		14.4				~	96	1
104	NGC 4063	GiG	12 04 05.999	+01 50 49.16		15.0		13.875		~	37	0
105	NGC 4065	LIN	12 04 06.168	+20 14 06.30		14.0				~	86	0
106	NGC 4066	GiG	12 04 09.409	+20 20 52.58		14.4				~	50	0
107	NAME NGC 4065 Group	GrG	12 04 09.5	+20 13 18		12.2				~	25	1
108	UGC 7049	rG	12 04 09.547	+20 11 05.09		15.7				~	49	0
109	NGC 4070	LIN	12 04 11.2987693782	+20 24 35.360329298		14.3				~	70	0
110	NGC 4072	LIN	12 04 13.837	+20 12 34.93		15.6				~	26	0
111	NAME NGC 4073 Group	GrG	12 04 21.7	+01 50 19			13.53			~	247	0
112	NGC 4073	BiC	12 04 27.066	+01 53 45.50		13.8	13.21	14.249		~	185	1
113	NGC 4074	Sy2	12 04 29.6676095855	+20 18 58.623177683		15.43	14.44			~	140	0
114	NGC 4076	LIN	12 04 32.5246867404	+20 12 17.889235402		14.3				~	66	0
115	NGC 4139	GiG	12 04 34.029	+01 48 05.78		14.804		13.584		~	40	0
116	NGC 4077	EmG	12 04 38.054	+01 47 15.78		14.5				~	50	0
117	LEDA 39532	G	12 18 28.079	+05 36 56.93						~	19	0
118	2MASX J12190057+0605403	GiG	12 19 00.5497850405	+06 05 40.747666532		15.3				~	21	0
119	NGC 4257	LIN	12 19 06.478	+05 43 33.33		15.0				~	40	0
120	LEDA 39639	LSB	12 19 13.4	+05 59 21		19				~	25	0
121	MCG+01-31-053	GiG	12 19 22.104	+05 54 37.47		14.8				~	37	0
122	NGC 4260	GiP	12 19 22.247	+06 05 55.69		13.1				~	150	0
123	NGC 4261	LIN	12 19 23.2160630	+05 49 29.700024		13.92	12.87			~	1131	0
124	NGC 4264	GiG	12 19 35.779	+05 50 48.49		13.9				~	96	0
125	NGC 4266	AGN	12 19 42.316	+05 32 17.52		15.0				~	63	0
126	LEDA 39711	LSB	12 19 45.280	+05 27 21.27						~	19	0
127	IC 3155	GiP	12 19 45.3198104193	+06 00 21.200924536		15.0				~	38	0
128	NGC 4269	GiP	12 19 49.1977329159	+06 00 53.796815343		13.9				~	59	0
129	NAME NGC 4261 Group	GrG	12 20 02.3	+05 20 24			12.9			~	38	0
130	LEDA 39792	LSB	12 20 17.87	+06 00 06.3						~	11	0
131	IC 3171	LIN	12 20 24.071	+25 33 38.22		14.8				~	26	0
132	NGC 4287	H2G	12 20 48.4898283184	+05 38 23.268046617		15.2				~	58	0
133	NGC 4320	GiG	12 22 57.7226178764	+10 32 53.942415640		15.3				~	38	0
134	NGC 4325	BiC	12 23 06.662	+10 37 16.45		15.0				~	116	1
135	NAME NGC 4325 Group	GrG	12 23 18.2	+10 37 19						~	52	0
136	NAME Vir I	ClG	12 26 32.1	+12 43 24		10.00	8.49			~	5952	0
137	NGC 4555	LIN	12 35 41.192	+26 31 23.08		13.5				~	82	0
138	NAME NGC 4636 Group	GrG	12 42 49.5	+02 41 08						~	550	0
139	NGC 4636	LIN	12 42 49.867	+02 41 16.01		12.62	11.84			~	1047	1
140	6dFGS gJ125245.9-091807	GiG	12 52 45.886	-09 18 07.18		16.30		15.09		~	4	0
141	HCG 62	CGG	12 53 05.6	-09 12 21						~	295	0
142	NGC 4761	BiC	12 53 05.676	-09 12 14.18		13.79		11.25		~	77	1
143	6dFGS gJ125306.6-091528	GiG	12 53 06.618	-09 15 27.47		16.30		14.11		~	24	0
144	6dFGS gJ125356.0-091224	GiG	12 53 55.9721725336	-09 12 23.231804828		15.34		14.14		~	15	0
145	MCG+05-31-079	GiG	13 00 14.0030268672	+28 49 41.416916162		15.4	14.58			~	36	0
146	MCG+05-31-151	GiC	13 11 36.7494605670	+31 30 29.052547384		14.6		14.67		~	27	0
147	NGC 5129	LIN	13 24 10.001	+13 58 35.19		13.3				~	116	1
148	BAX 201.0418+13.9765	ClG	13 24 11.9	+13 58 45						~	85	0
149	2MASX J13242415+1356152	GiG	13 24 24.1797127673	+13 56 15.081211780		15.4				~	21	0
150	NAME NGC 5129 Group	GrG	13 24 36.0	+13 55 40						~	37	0
151	NGC 5171	GiG	13 29 21.560	+11 44 06.39		14.7				~	52	0
152	NGC 5177	GiG	13 29 24.259	+11 47 49.32		15.4				~	31	0
153	NGC 5176	GiG	13 29 24.957	+11 46 53.31		15.4				~	29	0
154	NGC 5178	LIN	13 29 29.308	+11 37 29.19		15.0				~	29	0
155	NGC 5179	LIN	13 29 30.890	+11 44 45.16		14.9				~	43	0
156	NGC 5350	GiP	13 53 21.584	+40 21 50.24		12.4		10.99		~	200	0
157	NGC 5353	GiP	13 53 26.7	+40 16 59		11.8		10.57		~	251	1
158	NGC 5354	LIN	13 53 26.730	+40 18 09.91		12.3		10.64		~	148	0
159	HCG 68	CGG	13 53 40.9	+40 19 07			12.4			~	108	0
160	NGC 5355	GiP	13 53 45.5692767998	+40 20 19.252813479		14.0		13.08		~	104	0
161	NGC 5358	GiP	13 54 00.4217120909	+40 16 38.363788821		14.6		13.35		~	79	0
162	NGC 5839	GiG	15 05 27.473	+01 38 04.68		13.9	12.19	11.67	10.72	~	84	0
163	NAME NGC 5846 Group	GrG	15 05 47.0	+01 34 25		10.0				~	131	0
164	NGC 5845	GiG	15 06 00.787	+01 38 01.77		13.8	11.20	12.06	9.94	~	359	0
165	NGC 5846	BiC	15 06 29.253	+01 36 20.29		11.9		9.74		~	784	1
166	NGC 5848	GiP	15 06 35.057	+02 00 17.29		14.8		12.70		~	27	0
167	NGC 5850	LIN	15 07 07.676	+01 32 39.41		11.5		10.79	11.1	~	286	1
168	2MASX J15074780+0117318	GiG	15 07 47.8272179117	+01 17 31.438275132		15.6		14.10		~	11	0
169	2MASX J16143528+3413208	GiG	16 14 35.2944617798	+34 13 21.066474860		15.2				~	17	0
170	NAME NGC 6338 Group	GrG	17 15 20.42	+57 21 52.5						~	73	0
171	NGC 6338	Bla	17 15 23.0	+57 24 40		14.2		8		~	148	2
172	NGC 6345	G	17 15 24.274	+57 21 01.04		15.4				~	19	0
173	NGC 6346	LIN	17 15 24.480	+57 19 21.03		15.3				~	24	0
174	2MASX J17154740+5718066	G	17 15 47.406	+57 18 06.73						~	4	0
175	IC 1252	G	17 15 50.414	+57 22 00.31		15.7				~	17	0
176	3C 386.0	rG	18 38 26.237	+17 11 49.75		15.85	14.6			~	186	2
177	NGC 6776	G	19 25 19.131	-63 51 36.68		13.19	11.99	11.59		~	85	0
178	NGC 7172	Sy2	22 02 01.897	-31 52 11.60		12.72	13.61	11.15		~	478	1
179	NGC 7173	GiP	22 02 03.201	-31 58 25.33		12.10		10.59		~	126	0
180	HCG 90	CGG	22 02 06.3	-31 55 48						~	125	0
181	NGC 7174	GiP	22 02 06.82	-31 59 36.5		12.26	12.15	10.84		~	81	0
182	NGC 7176	GiP	22 02 08.467	-31 59 23.32		12.08		10.59		~	114	0
183	HCG 91	CGG	22 09 00.8	-27 47 36						~	52	0
184	NGC 7214	Sy1	22 09 07.6626319170	-27 48 34.155863437		12.48	14.10	11.40		~	123	0
185	ESO 467-13	GiG	22 09 13.9921604181	-27 46 55.654703940		14.76		13.99		~	48	0
186	ESO 467-15	EmG	22 09 16.282	-27 43 49.04		15.04		13.93		~	30	0
187	NGC 7317	Sy2	22 35 51.8681756144	+33 56 41.758762990	15.10	14.57	13.60	12.72		~	159	1
188	NAME Stephan's Quintet	CGG	22 35 57.5	+33 57 36						~	378	1
189	NGC 7319	Sy2	22 36 03.602	+33 58 33.18		14.57	13.53	12.65		~	256	0
190	NGC 7611	GiG	23 19 36.621	+08 03 47.56		14.0				~	61	0
191	UGC 12510	G	23 19 39.2499562509	+08 15 53.243438131		16.0				~	12	0
192	NGC 7617	GiG	23 20 08.9643278913	+08 09 56.683971348		15.1				~	62	0
193	UGC 12518	GiP	23 20 12.781	+07 55 55.62		15.7				~	49	0
194	NGC 7619	GiG	23 20 14.524	+08 12 22.63		12.7				~	408	0
195	UGC 12522	GiP	23 20 16.557	+08 00 18.94		16.5				~	31	0
196	NGC 7623	GiG	23 20 30.0035556734	+08 23 44.807404006		13.9				~	74	0
197	NAME NGC 7619 Group	GrG	23 20 32.1	+08 22 26						~	44	0
198	NGC 7626	rG	23 20 42.524	+08 13 01.43		12.8				~	405	1
199	MCG+01-59-058	GiC	23 21 05.764	+08 06 08.43		15.6				~	31	0
200	NGC 7631	GiG	23 21 26.675	+08 13 03.41		13.8				~	134	0
201	IC 5351	GiG	23 47 18.9311571562	-02 18 48.524135521		14.95		12.66		~	35	0
202	2MASX J23471984-0216505	GiG	23 47 19.8661176475	-02 16 50.751300354		16.75				~	20	0
203	IC 5357	GiG	23 47 23.003	-02 18 02.12		14.27		12.75		~	53	0
204	IC 5356	GiG	23 47 23.8037567060	-02 21 04.376127213		15.11		13.57		~	33	0
205	HCG 97	CGG	23 47 24.0	-02 19 08						~	93	0
206	IC 5359	GiG	23 47 37.873	-02 18 59.83		15.86		14.17		~	35	0
207	NAME NGC 7777 Group	GrG	23 53 33.0	+28 34 42						~	12	0
208	UGC 12835	GiG	23 53 56.748	+28 29 33.70		14.4				~	25	0
209	NGC 7796	G	23 58 59.810	-55 27 30.12		12.36	11.30	10.82		~	107	0
210	NAME NGC 5176 Group	?	~	~						~	1	0

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