2000A&A...363..440L


Query : 2000A&A...363..440L

2000A&A...363..440L - Astronomy and Astrophysics, volume 363, 440-450 (2000/11-2)

Probing the gravitational potential of a nearby lensing cluster Abell 2104.

LIANG H., LEMONON L., VALTCHANOV I., PIERRE M. and SOUCAIL G.

Abstract (from CDS):

The cluster Abell 2104 is one of the lowest redshift clusters (z=0.153) known to have a gravitational lensing arc. We present detailed analysis of the cluster properties such as the gravitational potential using the X-ray data from ROSAT (HRI) and ASCA, as well as optical imaging and spectroscopic data from the CFHT. The cluster is highly luminous in the X-ray with a bolometric luminosity of Lx∼3x1045ergs/s and a high gas temperature of ∼10.4keV. The X-ray emission extending out to at least a radius of 1.46Mpc, displays significant substructure. The total mass deduced from the X-ray data under the assumption of hydrostatic equilibrium and isothermal gas, is found to be Mtot(r<1.46Mpc)~(8.0±0.8)x1014M. The gas fraction within a radius of 1.46Mpc is ∼5-10%. The cluster galaxy velocity distribution has a dispersion of 1200±200km/s with no obvious evidence for substructure. The total mass within 1.46Mpc, deduced from Jean's equation using the observed galaxy number density distribution and velocity dispersion, is found to be ∼6.8x1014M to ∼2.6x1015M marginally consistent with the X-ray deduced total mass.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: A 2104 - cosmology: dark matter - cosmology: gravitational lensing

VizieR on-line data: <Available at CDS (J/A+A/363/440): table2.dat>

Nomenclature: Table 2: [LLV2000] NNN N=60 among (Nos 102-329).

CDS comments: Giant Arc = [PSB94] Arc

Simbad objects: 67

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Number of rows : 67
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 485 0
2 [LLV2000] 202 GiC 15 39 49.8 -03 16 46   21.61       ~ 1 0
3 [LLV2000] 302 GiC 15 39 50.5 -03 20 50   20.53 19.31 18.61 18.05 ~ 2 0
4 LARCS a2104r03-932 GiC 15 39 52.28 -03 16 17.8   19.97   17.72   ~ 2 0
5 [LLV2000] 304 G 15 39 52.4 -03 19 33   24.04       ~ 1 0
6 [LLV2000] 102 GiC 15 39 53.0 -03 18 45   20.38 19.62 19.10 18.64 ~ 2 0
7 [LLV2000] 103 G 15 39 53.8 -03 19 13   22.29       ~ 1 0
8 LARCS a2104r03-1400 GiC 15 39 54.79 -03 19 08.8   20.57 18.48 18.26 17.12 ~ 4 0
9 [LLV2000] 105 GiC 15 39 56.1 -03 18 37   21.17 19.87 19.14 18.57 ~ 3 0
10 [LLV2000] 207 GiC 15 39 56.1 -03 18 30   21.13 19.89 19.10 18.51 ~ 3 0
11 [LLV2000] 106 GiC 15 39 57.5 -03 19 42   20.11 18.87 18.15 17.61 ~ 3 0
12 [LLV2000] 107 GiC 15 39 58.9 -03 17 20   19.86 18.62 17.93 17.36 ~ 2 0
13 LARCS a2104r03-1478 GiC 15 39 59.67 -03 19 35.6   20.06 17.88 17.86 16.56 ~ 4 0
14 [LLV2000] 311 GiC 15 40 00.4 -03 20 32   20.88 19.57 18.82 18.25 ~ 3 0
15 [LLV2000] 109 GiC 15 40 00.6 -03 18 34   19.36 18.47 17.90 17.41 ~ 3 0
16 [LLV2000] 211 GiC 15 40 01.2 -03 20 25   20.87 19.89 19.23 18.66 ~ 3 0
17 LARCS a2104r03-1163 GiC 15 40 01.69 -03 18 40.0   20.20 18.06 17.94 16.66 ~ 4 0
18 LARCS a2104r03-1022 GiC 15 40 02.12 -03 17 22.9   19.95 17.91 17.79 16.64 ~ 3 0
19 [LLV2000] 313 G 15 40 02.5 -03 16 37   21.07       ~ 1 0
20 2MASX J15400308-0320112 GiC 15 40 03.084 -03 20 11.30   19.69 17.61 17.61 16.39 ~ 4 0
21 [LLV2000] 213 GiC 15 40 03.3 -03 18 35   20.65 19.47 18.68 18.16 ~ 3 0
22 2MASS J15400392-0320389 AGN 15 40 03.9082045728 -03 20 38.750834832   20.20 18.51 17.77 18.64 ~ 6 0
23 2MASX J15400395-0318472 GiC 15 40 03.951 -03 18 47.30   19.42 16.99 17.15 15.67 ~ 5 0
24 [LLV2000] 214 GiC 15 40 04.4 -03 19 37   20.11 18.83 18.08 17.50 ~ 3 0
25 [LLV2000] 315 GiC 15 40 05.1 -03 18 29   19.21 17.88 17.10 16.55 ~ 3 0
26 LARCS a2104r03-1475 GiC 15 40 05.16 -03 19 39.5   20.13 17.93 18.04 16.63 ~ 4 0
27 [LLV2000] 113 GiC 15 40 05.4 -03 19 27   19.55 18.22 17.45 16.84 ~ 3 0
28 2MASX J15400588-0319082 GiC 15 40 05.9073205848 -03 19 08.350755888   19.85 17.37 17.61 16.06 ~ 4 0
29 [LLV2000] 316 GiC 15 40 06.2 -03 18 27   20.78 19.50 18.67 18.23 ~ 3 0
30 [LLV2000] 114 GiC 15 40 06.4 -03 18 20   19.93 18.57 17.87 17.37 ~ 3 0
31 ACO 2104 ClG 15 40 06.8 -03 17 39           ~ 104 0
32 [LLV2000] 217 GiC 15 40 07.3 -03 19 00   19.50 18.54 17.90 17.40 ~ 3 0
33 [LLV2000] 317 GiC 15 40 07.6 -03 17 07   20.59 19.34 18.62 18.05 ~ 3 0
34 2MASX J15400795-0318162 BiC 15 40 07.958 -03 18 16.29   17.80 16.40 15.70 15.11 ~ 9 0
35 LARCS a2104r03-1121 GiC 15 40 08.28 -03 18 21.0   20.21 18.02 17.98 16.72 ~ 4 0
36 [LLV2000] 116 GiC 15 40 08.5 -03 18 06   18.93 17.70 16.95 16.42 ~ 3 0
37 LARCS a2104r03-974 GiC 15 40 08.53 -03 16 56.5   20.29 18.23 18.14 16.91 ~ 4 0
38 [LLV2000] 219 GiC 15 40 09.9 -03 18 56   19.74 18.46 17.71 17.12 ~ 3 0
39 2MASX J15401029-0318342 AGN 15 40 10.294 -03 18 34.29   18.84       ~ 2 0
40 LARCS a2104r03-944 GiC 15 40 10.47 -03 16 39.5   19.95 17.82 17.73 16.56 ~ 4 0
41 [LLV2000] 118 GiC 15 40 11.2 -03 17 56   20.25 18.94 18.17 17.58 ~ 3 0
42 [LLV2000] 320 G 15 40 11.4 -03 20 47   20.71       ~ 1 0
43 [LLV2000] 221 GiC 15 40 11.6 -03 16 55   20.52 19.36 18.65 18.15 ~ 3 0
44 [LLV2000] 321 G 15 40 12.0 -03 20 21   21.21       ~ 1 0
45 [LLV2000] 119 GiC 15 40 12.4 -03 18 49   20.23 18.98 18.22 17.65 ~ 3 0
46 LARCS a2104r03-1072 GiC 15 40 13.72 -03 18 02.9   20.16 18.02 17.95 16.69 ~ 4 0
47 [LLV2000] 323 GiC 15 40 15.0 -03 16 48   21.27 20.08 19.32 18.76 ~ 3 0
48 [LLV2000] 223 GiC 15 40 16.6 -03 18 09   20.85 19.68 18.93 18.40 ~ 3 0
49 [LLV2000] 324 GiC 15 40 16.6 -03 19 46   20.94 19.69 18.96 18.42 ~ 3 0
50 2MASX J15401724-0321012 GiC 15 40 17.2191674856 -03 21 01.447260804   19.76 17.45 17.47 16.08 ~ 4 0
51 [LLV2000] 123 GiC 15 40 18.7 -03 17 28   19.84 18.77 18.18 17.74 ~ 3 0
52 LARCS a2104r03-1473 GiC 15 40 19.17 -03 19 42.8   20.73 18.67 18.48 17.32 ~ 4 0
53 [LLV2000] 327 GiC 15 40 19.4 -03 20 42   19.18 17.88 17.14 16.52 ~ 3 0
54 LARCS a2104r03-1075 GiC 15 40 19.49 -03 18 09.3   20.40 18.12 18.13 16.82 ~ 4 0
55 [LLV2000] 225 GiC 15 40 20.3 -03 18 52   19.83 18.77 18.13 17.59 ~ 3 0
56 LARCS a2104r03-1035 GiC 15 40 20.79 -03 17 49.1   20.83 18.79 18.76 17.51 ~ 4 0
57 [LLV2000] 328 G 15 40 20.8 -03 18 15   22.33       ~ 1 0
58 [LLV2000] 227 GiC 15 40 21.8 -03 16 25   22.73       ~ 1 0
59 [LLV2000] 329 GiC 15 40 22.6 -03 18 15   21.74 20.84 20.17 19.50 ~ 3 0
60 [LLV2000] 228 AGN 15 40 23.5 -03 18 00   21.79 20.41 19.39 18.78 ~ 3 0
61 NGC 6341 9030 * 17 17 06.2462810160 +43 03 05.477918976   14.87 14.07     K0V 11 0
62 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 1997 0
63 Cl* NGC 6341 VCS 1 * ~ ~   19.660 19.364     ~ 2 0
64 [LLV2000] 127 G ~ ~   22.23       ~ 1 0
65 [LLV2000] 319 GiC ~ ~   21.65       ~ 1 0
66 Cl* NGC 6341 CAB B * ~ ~           ~ 2 0
67 NAME ACO 2104 Arc LeI ~ ~           ~ 2 0

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2022.05.20-19:34:14

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