2013A&A...555A..66L

Query : 2013A&A...555A..66L

2013A&A...555A..66L - Astronomy and Astrophysics, volume 555A66-66 (2013/7-1)

A comprehensive picture of baryons in groups and clusters of galaxies.

LAGANA T.F., MARTINET N., DURRET F., LIMA NETO G.B., MAUGHAN B. and ZHANG Y.-Y.

Abstract (from CDS):

Based on XMM-Newton, Chandra, and SDSS data, we investigate the baryon distribution in groups and clusters and its use as a cosmological constraint. For this, we considered a sample of 123 systems with temperatures kT₅₀₀=1.0-9.0keV, total masses in the mass range M₅₀₀=(∼10¹³-4x10¹⁵)h₇₀^–1M_☉, and redshifts 0.02<z<1.3. The gas masses and total masses are derived from X-ray data under the assumption of hydrostatic equilibrium and spherical symmetry. The stellar masses are based on SDSS-DR8 optical photometric data. For the 37 systems out of 123 that had both optical and X-ray data available, we investigated the gas, stellar, and total baryon mass fractions inside r₂₅₀₀ and r₅₀₀ and the differential gas mass fraction within the spherical annulus between r₂₅₀₀ and r₅₀₀, as a function of total mass. For the other objects, we investigated the gas mass fraction only. We find that the gas mass fraction inside r₂₅₀₀ and r₅₀₀ depends on the total mass. However, the differential gas mass fraction does not show any dependence on total mass for systems with M₅₀₀>10¹⁴M_☉. The stellar mass fraction inside r₂₅₀₀ and r₅₀₀ increases towards low-mass systems more steeply than the f_gas decrease with total mass. Adding the gas and stellar mass fractions to obtain the total baryonic content, we find it to increase with cluster mass, reaching the WMAP-7 value for clusters with M₅₀₀ ∼10¹⁴ M_☉. This led us to investigate the contribution of the intracluster light to the total baryon budget for lower mass systems, but we find that it cannot account for the difference observed. The gas mass fraction dependence on total mass observed for groups and clusters could be due to the difficulty of low-mass systems to retain gas inside the inner region (r<r₂₅₀₀). Because of their shallower potential well, non-thermal processes are more effective in expelling the gas from their central regions outwards. Since the differential gas mass fraction is nearly constant, it provides better constraints for cosmology. Moreover, we find that the gas mass fraction does not depend on redshift at a 2σ level. Using our total f_b estimates, our results imply Ω_m<0.55, and taking the highest significant estimates for f_b, Ω_m>0.22.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: general - cosmological parameters - galaxies: clusters: intracluster medium

VizieR on-line data: <Available at CDS (J/A+A/555/A66): table1a.dat table1b.dat>

Simbad objects: 123

Full paper

View the references in ADS

Number of rows : 123

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	ClG 0016+16	ClG	00 18 33.3	+16 26 36					~	517	0
2	BAX 006.9575+26.2739	ClG	00 27 45.90	+26 16 25.0					~	44	0
3	ClG J0030+2618	ClG	00 30 33.6	+26 18 16					~	65	0
4	ACO 68	ClG	00 37 06.2	+09 09 33					~	195	0
5	ACO 115	ClG	00 55 59	+26 23.2					~	295	1
6	ACO 209	ClG	01 31 52.9	-13 36 53					~	326	0
7	ClG J0152-1358	ClG	01 52 41.3	-13 58 13					~	262	3
8	ACO 267	ClG	01 52 43.016	+00 59 58.90					~	241	0
9	ACT-CL J0159.8-0849	ClG	01 59 49.4	-08 50 00					~	98	0
10	ClG J0216-1747	ClG	02 16 32.8	-17 47 11					~	16	0
11	ACT-CL J0232.2-4421	ClG	02 32 18.69	-44 20 41.5					~	130	0
12	ClG J0242-2132	ClG	02 42 35.9	-21 32 26					~	55	0
13	ACO 383	ClG	02 48 03.3915	-03 31 45.228					~	389	0
14	NGC 1132	EmG	02 52 51.82	-01 16 29.0	13.9		12.16		~	180	0
15	ACO 402	ClG	02 57 41.33	-22 09 14.4					~	62	0
16	ClG 0303+1658	ClG	03 05 31.6	+17 10 02		20.13			~	92	0
17	ClG J0318-0302	ClG	03 18 16.61	-03 01 59.4					~	27	0
18	RX J0329.6-0211	ClG	03 29 41.6	-02 11 47					~	155	0
19	BAX 055.3242+15.3961	ClG	03 41 16.9	+15 24 27					~	45	0
20	ACT-CL J0404.6+1108	ClG	04 04 37.4	+11 09 57					~	36	0
21	ClG J0429-0253	ClG	04 29 36.0	-02 53 09					~	131	0
22	ACT-CL J0438.9+0716	ClG	04 39 00.7	+07 15 45					~	62	0
23	BAX 069.7593+05.3453	ClG	04 39 02.2	+05 20 43					~	82	0
24	ClG J0451+0006	ClG	04 51 54.6	+00 06 19					~	57	0
25	ACO 521	ClG	04 54 08.6	-10 14 39					~	279	0
26	ACO 520	ClG	04 54 10.1	+02 55 38					~	465	0
27	ClG 0451-03	ClG	04 54 10.9	-03 01 07		20.0			~	368	0
28	ClG J0522-3624	ClG	05 22 13.8	-36 24 49					~	41	0
29	ClG J0542-4100	ClG	05 42 49.9	-40 59 58					~	67	0
30	ClG J0647+7015	ClG	06 47 50.0	+70 14 55					~	177	0
31	ClG 0657-56	ClG	06 58 26.9	-55 58 21					~	1077	1
32	ClG J0717+3745	ClG	07 17 36.50	+37 45 23.0					~	511	0
33	B3 0714+378	Rad	07 17 36.6	+37 45 01					~	170	2
34	ACO 586	ClG	07 32 20.3	+31 37 58					~	196	0
35	ClG J0744+3927	ClG	07 44 52.5	+39 27 30					~	189	0
36	ACO 665	ClG	08 30 45.2	+65 52 55					~	457	0
37	ACO 697	ClG	08 42 57.6	+36 21 45					~	277	0
38	ClG J0848+4456	ClG	08 48 46.9	+44 56 22					~	62	1
39	ZwCl 0847+3617	ClG	08 50 12.0	+36 03 36					~	75	0
40	ClG J0853+5759	ClG	08 53 13.4	+57 59 44					~	27	0
41	ClG 0906.5+1110	ClG	09 09 12.7	+10 58 32					~	108	0
42	ClG J0910+5422	ClG	09 10 44.9	+54 22 09					~	94	0
43	ACO 773	ClG	09 17 51.3	+51 43 20					~	308	0
44	ACO 781	ClG	09 20 25.4	+30 30 07					~	167	0
45	ClG J0926+1242	ClG	09 26 36.6	+12 42 59					~	43	0
46	ClG J0947+7623	ClG	09 46 59.916	+76 23 43.99					~	165	0
47	NVSS J094712+762312	Rad	09 47 12.37	+76 23 09.3					~	151	1
48	ZwCl 0947+1723	ClG	09 49 51.8	+17 07 05					~	92	0
49	ClG J0956+4107	ClG	09 56 03.4	+41 07 14					~	44	0
50	ACO 907	ClG	09 58 21.84	-11 03 47.5					~	137	0
51	ZwCl 1006+1201	ClG	10 08 47.1	+11 47 55		18.0			~	75	0
52	ClG 1008-12	ClG	10 10 34.1	-12 39 48		18.0			~	155	0
53	ZwCl 1021+0426	ClG	10 23 39.0	+04 11 14	15.6	17.95			~	297	0
54	ClG J1113-2615	ClG	11 13 05.7	-26 15 36					~	37	0
55	ACO 1204	ClG	11 13 32.2	+17 35 40					~	101	0
56	ClG J1117+1744	ClG	11 17 30.2	+17 44 44					~	35	0
57	ClG J1120+4318	ClG	11 20 07.6	+43 18 07					~	65	0
58	ClG J1120+2326	ClG	11 20 57.9	+23 26 41					~	42	0
59	ACO 1240	ClG	11 23 37.7	+43 03 28					~	113	0
60	ACO 1300	ClG	11 32 00.7	-19 53 34					~	168	0
61	ClG 1137+66	ClG	11 40 23.0	+66 08 16		21.0			~	141	0
62	MCS J1149.5+2223	ClG	11 49 35.8	+22 23 55					~	546	0
63	ACO 1413	ClG	11 55 12.87	+23 23 46.9					~	456	0
64	NGC 4104	rG	12 06 38.9098151088	+28 10 27.184493280	13.7	13.58			~	114	1
65	ClG J1213+0253	ClG	12 13 34.4	+02 53 57					~	34	0
66	ClG J1221+4918	ClG	12 21 25.0	+49 18 07					~	60	0
67	NGC 4325	BiC	12 23 06.662	+10 37 16.45	15.0				~	140	1
68	ClG J1226+3332	ClG	12 26 57.7	+33 32 50					~	228	0
69	ZwCl 1231+1007	ClG	12 34 21.9	+09 47 02					~	72	0
70	ClG J1252-2927	ClG	12 52 54.4	-29 27 17					~	158	0
71	ACO 1682	ClG	13 06 49.7	+46 32 59					~	149	1
72	ClG J1311-0311	ClG	13 11 01.7	-03 10 38					~	120	0
73	ACO 1689	ClG	13 11 29.5	-01 20 28					~	1178	0
74	ClG J1317+2911	ClG	13 17 21.70	+29 11 18.1					~	33	0
75	NGC 5096B	rG	13 20 14.7283808160	+33 08 36.294146268	15.0				~	112	2
76	ClG J1334+5031	ClG	13 34.0	+50 31					~	9	0
77	ACO 1763	ClG	13 35 20.1	+41 00 04					~	335	0
78	ClG J1347-1145	ClG	13 47 30.5	-11 45 07					~	577	0
79	ClG J1350+6007	ClG	13 50 48.55	+60 07 06.7					~	46	0
80	ClG J1354-0221	ClG	13 54 17.00	-02 22 13.1					~	52	0
81	ClG J1415+3611	ClG	14 15 11.1	+36 12 03					~	85	1
82	[VMF98] 158	ClG	14 16 28.1	+44 46 38					~	50	0
83	ClG J1423+2404	ClG	14 23 47.7	+24 04 40					~	231	0
84	ACO 1914	ClG	14 25 57.4	+37 49 54					~	338	0
85	ACO 1942	ClG	14 38 21.8673	+03 40 13.247					~	122	0
86	ACO 1991	ClG	14 54 41.53	+18 38 08.4					~	349	1
87	ZwCl 1455+2232	ClG	14 57 15.2	+22 20 30		18.62	20.04		~	309	0
88	ClG J1504-0248	ClG	15 04 07.4	-02 48 15					~	186	0
89	ACO 2034	ClG	15 10 03.9	+33 30 57					~	248	1
90	ACO 2069	ClG	15 24 02.92	+29 53 20.3					~	165	0
91	LEDA 1900245	Bla	15 32 53.780	+30 20 59.41	19.1		15.7	17.819	~	155	1
92	ACO 2111	ClG	15 39 40.9	+34 25 04					~	188	0
93	ACO 2125	ClG	15 41 14.1	+66 15 57					~	124	1
94	AWM 4	ClG	16 04 52.01	+23 56 26.9		14.38			~	141	0
95	ACO 2163	ClG	16 15 46.1	-06 08 50					~	586	0
96	ClG J1621+3810	ClG	16 21 25.5	+38 09 43					~	83	0
97	ClG 1621+26	ClG	16 23 35.7	+26 33 50					~	145	0
98	ACO 2204	ClG	16 32 47.7	+05 34 18					~	457	0
99	ACO 2218	ClG	16 35 54.0	+66 13 00					~	827	1
100	ClG J1641+4001	ClG	16 41 52.3	+40 01 29					~	43	0
101	ClG J1701+6414	ClG	17 01 22.6	+64 14 09					~	78	0
102	ClG J1716+6708	ClG	17 16 49.6	+67 08 30					~	137	0
103	ACO 2259	ClG	17 20 09.2	+27 40 09					~	131	0
104	ClG J1720+2638	ClG	17 20 09.6	+26 37 35					~	284	0
105	ClG J1720+3536	ClG	17 20 16.8	+35 36 27					~	150	1
106	ACO 2261	ClG	17 22 26.9	+32 07 58					~	370	0
107	ACO 2294	ClG	17 24 10.1	+85 53 09					~	69	0
108	IC 1262	rG	17 33 02.0176600056	+43 45 34.803150516	14.9				~	79	0
109	MCS J1824.3+4309	ClG	18 24 19.0	+43 09 49					~	19	0
110	ClG J1931-2635	ClG	19 31 49.6	-26 34 33					~	181	0
111	ACT-CL J2011.4-5724	ClG	20 11 26.8	-57 25 09					~	48	0
112	ClG 2053-04	ClG	20 56 21.2	-04 37 46	21.0				~	168	0
113	ClG J2129-0741	ClG	21 29 26.0	-07 41 28					~	189	0
114	ClG J2129+0005	ClG	21 29 40.5	+00 05 47					~	308	0
115	ACO 2409	ClG	22 00 52.7	+20 58 27					~	101	0
116	BAX 337.1433+20.6131	ClG	22 28 32.6	+20 37 08					~	132	0
117	ClG J2229-2756	ClG	22 29 45.36	-27 55 36.5					~	50	0
118	MCS J2245.0+2637	ClG	22 45 04.5	+26 38 07					~	40	0
119	BAX 341.8712+03.6203	ClG	22 47 29.5	+03 37 08					~	27	1
120	ACO S 1063	ClG	22 48 45.4	-44 31 42					~	395	0
121	ClG J2302+0844	ClG	23 02 48.1	+08 43 50					~	43	0
122	BAX 348.9417-02.3772	ClG	23 15 44.6	-02 22 54					~	30	0
123	ACO 2631	ClG	23 37 40.7	+00 16 35					~	183	0

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