2006MNRAS.367..527B

Query : 2006MNRAS.367..527B

2006MNRAS.367..527B - Mon. Not. R. Astron. Soc., 367, 527-540 (2006/April-1)

Galaxy cluster masses without non-baryonic dark matter.

BROWNSTEIN J.R. and MOFFAT J.W.

Abstract (from CDS):

We apply the modified acceleration law obtained from Einstein gravity coupled to a massive skew symmetric field, Fµνλ, to the problem of explaining X-ray galaxy cluster masses without exotic dark matter. Utilizing X-ray observations to fit the gas mass profile and temperature profile of the hot intracluster medium (ICM) with King `β-models', we show that the dynamical masses of the galaxy clusters resulting from our modified acceleration law fit the cluster gas masses for our sample of 106 clusters without the need of introducing a non-baryonic dark matter component. We are further able to show for our sample of 106 clusters that the distribution of gas in the ICM as a function of radial distance is well fitted by the dynamical mass distribution arising from our modified acceleration law without any additional dark matter component. In a previous work, we applied this theory to galaxy rotation curves and demonstrated good fits to our sample of 101 low surface brightness, high surface brightness and dwarf galaxies including 58 galaxies that were fitted photometrically with the single-parameter mass-to-light ratio (M/L)stars. The results obtained there were qualitatively similar to those obtained using Milgrom's phenomenological Modified Newtonian Dynamics (MOND) model, although the determined galaxy masses were quantitatively different, and MOND does not show a return to Keplerian behaviour at extragalactic distances. The results obtained here are compared to those obtained using Milgrom's phenomenological MOND model which does not fit the X-ray galaxy cluster masses unless an auxiliary dark matter component is included.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): gravitation - galaxies: clusters: general - galaxies: kinematics and dynamics - dark matter - X-rays: galaxies: clusters

Simbad objects: 105

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Number of rows : 105
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 ACO 2734 ClG 00 11 21.60 -28 51 16.6           ~ 156 0
2 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 974 0
3 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 577 2
4 ACO 133 ClG 01 02 41.5 -21 52 53           ~ 391 1
5 ACO 2877 ClG 01 09 49.3 -45 54 02           ~ 160 2
6 NAME NGC 507 Group GrG 01 23 39.91 +33 15 21.8           ~ 82 0
7 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 727 1
8 2A 0251+413 ClG 02 54 26.6 +41 33 25           ~ 328 1
9 ACO 400 ClG 02 57 37.4 +06 00 45           ~ 408 3
10 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 420 0
11 ACO 401 ClG 02 58 50.3 +13 34 07           ~ 592 0
12 ACO 3112 ClG 03 17 52.9 -44 15 06           ~ 329 1
13 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
14 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
15 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 402 1
16 BAX 055.3242+15.3961 ClG 03 41 16.9 +15 24 27           ~ 45 0
17 ACO 3158 ClG 03 43 07.5 -53 38 09           ~ 327 0
18 ACO S 405 ClG 03 51 32.8 -82 13 15           ~ 50 0
19 ACO 478 ClG 04 13 24.8 +10 27 52           ~ 522 0
20 NAME NGC 1550 Group ClG 04 19 37.93 +02 24 34.1           ~ 45 0
21 ClG 0422-09 ClG 04 25 51.02 -08 33 38.5           ~ 97 0
22 ACO 3266 ClG 04 31 26.4 -61 25 17           ~ 447 0
23 ACO 496 ClG 04 33 40.8 -13 14 34           ~ 728 2
24 RXC J0450.0+4501 ClG 04 50 13.9 +45 03 17           ~ 45 1
25 ACO 539 ClG 05 16 35.1 +06 27 14           ~ 255 2
26 ACO S 540 ClG 05 40 06.2 -40 50 29           ~ 60 0
27 ACO 548 ClG 05 47 01.7 -25 36 59           B8 209 2
28 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 334 0
29 ACO 3391 ClG 06 26 15.4 -53 40 52           ~ 222 1
30 ACO 3395 ClG 06 27 31.1 -54 23 58           ~ 229 0
31 ACO 576 ClG 07 21 24.1 +55 44 20           ~ 312 1
32 BAX 115.2425+55.4275 ClG 07 40 59.4 +55 25 55           ~ 34 0
33 PKS 0745-19 rG 07 47 31.3247085936 -19 17 40.013334276   19.60       ~ 422 1
34 ClG 0745-1910 ClG 07 47 32.4 -19 18 23           ~ 378 0
35 ACO 644 ClG 08 17 26.1 -07 31 13           ~ 241 0
36 ACO 754 ClG 09 09 14.8 -09 40 35           ~ 695 1
37 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
38 ACO S 636 ClG 10 29 41.0957 -35 19 32.908           ~ 248 0
39 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
40 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
41 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
42 NAME NGC 4073 Group GrG 12 04 44.08 +01 48 40.9     13.53     ~ 292 0
43 ZwCl 1215+0400 ClG 12 17 43.62 +03 38 51.5           ~ 169 0
44 NAME Vir B Cluster GrG 12 33 39.3 +10 10 57           ~ 143 0
45 NAME NGC 4636 Group GrG 12 42 49.5 +02 41 08           ~ 570 0
46 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
47 BAX 193.5900-29.0100 ClG 12 54 22.1 -29 00 46           ~ 45 0
48 BAX 193.6700-29.2254 ClG 12 54 40.6 -29 13 44           ~ 76 0
49 ACO 3530 ClG 12 55 36.0 -30 20 49           ~ 109 0
50 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 391 1
51 ACO 3532 ClG 12 57 19.2 -30 22 13           ~ 185 2
52 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 325 0
53 ACO 1651 ClG 12 59 27.3 -04 10 49           ~ 307 0
54 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
55 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
56 NAME NGC 5044 Group GrG 13 14 22.7 -16 32 04           ~ 186 0
57 ACO 1736 ClG 13 26 52.1 -27 06 33           ~ 268 2
58 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
59 ACO 3560 ClG 13 32 23.7 -33 08 21           ~ 145 1
60 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 337 1
61 ACO 1775 ClG 13 41 50.60 +26 21 10.6           ~ 324 0
62 ACO 3571 ClG 13 47 32.4 -32 50 12           ~ 308 2
63 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
64 ACO 1800 ClG 13 49 27.19 +28 04 44.6           ~ 127 0
65 ACO 3581 ClG 14 07 29.8 -27 01 04           ~ 197 3
66 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
67 BAX 220.1796+03.4530 ClG 14 40 34.37 +03 29 49.7     14.31     ~ 131 0
68 BAX 225.2969+01.7020 ClG 15 01 11.86 +01 41 53.2           ~ 48 0
69 NAME NGC 5846 Group GrG 15 05 47.0 +01 34 25           ~ 165 0
70 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
71 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
72 ACT-CL J1521.8+0742 ClG 15 21 48.8 +07 43 41     15.13     ~ 326 0
73 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
74 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 414 2
75 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
76 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 416 0
77 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 594 3
78 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 340 2
79 ACO 2163 ClG 16 15 46.1 -06 08 50           ~ 586 0
80 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
81 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
82 BAX 249.5848-64.5165 ClG 16 38 13.2 -64 21 21           ~ 123 0
83 ACO 2244 ClG 17 02 40.33 +34 02 58.7           ~ 301 0
84 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
85 BAX 258.1082-23.3759 ClG 17 12 26.3 -23 21 38           ~ 303 0
86 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
87 ZwCl 1742+3306 ClG 17 44 16.2753 +32 59 55.115           ~ 93 0
88 PSR J1915+1606 Psr 19 15 27.99999 +16 06 27.4034     22.5     ~ 1032 1
89 ACO 2319 ClG 19 21 14.0 +43 56 57           ~ 495 1
90 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 676 1
91 ACO 3695 ClG 20 34 47.7 -35 49 39           ~ 96 2
92 IC 1365 GrG 21 14 03.6958 +02 34 14.568           ~ 52 0
93 ACO 3822 ClG 21 54 06.2 -57 50 49           ~ 98 0
94 ACO 3827 ClG 22 01 49.1 -59 57 15           ~ 178 0
95 ACO 3888 ClG 22 34 26.3 -37 44 29           ~ 151 1
96 ACO 3921 ClG 22 49 59.0 -64 25 48           ~ 165 1
97 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 272 1
98 BAX 349.3187+18.7197 ClG 23 17 11.184 +18 41 48.87           ~ 97 0
99 ACO 2589 ClG 23 24 00.5 +16 49 29           ~ 327 1
100 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0
101 ACO 2634 ClG 23 38 18.4 +27 01 37           ~ 515 2
102 ACO 2657 ClG 23 44 51.0 +09 08 40           ~ 280 3
103 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 349 3
104 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 400 1
105 NAME NGC 499 Group ClG ~ ~           ~ 9 0

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