2006ApJ...636..698F


Query : 2006ApJ...636..698F

2006ApJ...636..698F - Astrophys. J., 636, 698-711 (2006/January-2)

Scaling mass profiles around elliptical galaxies observed with Chandra and XMM-Newton.

FUKAZAWA Y., BOTOYA-NONESA J.G., PU J., OHTO A. and KAWANO N.

Abstract (from CDS):

We investigated the dynamical structure of 53 elliptical galaxies using the Chandra archival X-ray data. In X-ray-luminous galaxies, temperature increases with radius and gas density is systematically higher at the optical outskirts, indicating the presence of a significant amount of the group-scale hot gas. In contrast, X-ray-dim galaxies show a flat or declining temperature profile against radius and the gas density is relatively lower at the optical outskirts. Thus, it is found that X-ray-bright and faint elliptical galaxies are clearly distinguished by the temperature and gas density profile. The mass profile is well scaled by a virial radius r200rather than an optical half-radius re, is quite similar at (0.001-0.03)r200between X-ray-luminous and dim galaxies, and smoothly connects to those profiles of clusters of galaxies. At the inner region of (0.001-0.01)r200or (0.1-1)re, the mass profile well traces a stellar mass with a constant mass-to-light ratio of M/LB=3-10 M/L. The M/LBratio of X-ray-bright galaxies rises up steeply beyond 0.01r200and thus requires a presence of massive dark matter halo. From the deprojection analysis combined with the XMM-Newton data, we found that X-ray-dim galaxies NGC 3923, NGC 720, and IC 1459 also have a high M/LBratio of 20-30 at 20 kpc, comparable to that of X-ray-luminous galaxies. Therefore, dark matter is indicated to be common in elliptical galaxies; their dark matter distribution, as well as that of galaxy clusters, almost follows the NFW profile.

Abstract Copyright:

Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - Galaxies: ISM - X-Rays: Galaxies

Simbad objects: 56

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Number of rows : 56
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 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2091 2
2 NGC 507 BiC 01 23 39.950 +33 15 22.22   13.0       ~ 415 3
3 NGC 533 GiG 01 25 31.4074984248 +01 45 33.236656812   13.1 14.11     ~ 219 0
4 ChASeM33 J013350.89+303936.6 SNR 01 33 50.8965749232 +30 39 36.630403128           ~ 89 1
5 2E 0150.5-1358 ClG 01 53 00.40 -13 44 18.0           ~ 386 0
6 NGC 720 GiG 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 504 0
7 NGC 741 rG 01 56 20.959 +05 37 43.77   13.2       ~ 282 2
8 NGC 1269 GiG 03 17 18.5785534752 -41 06 28.628735184 9.85 9.83 8.81 8.72   ~ 395 1
9 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1288 1
10 NGC 1332 GiP 03 26 17.321 -21 20 07.33   11.45   9.84   ~ 324 0
11 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1514 1
12 NGC 1395 SyG 03 38 29.789 -23 01 39.69   10.71   8.99   ~ 268 0
13 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 711 1
14 NGC 1407 GiG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 556 1
15 NGC 1553 GiP 04 16 10.4697802536 -55 46 48.072797400 10.76 10.10 9.40 8.74   ~ 365 2
16 NGC 1550 BiC 04 19 37.9450450152 +02 24 35.918168940   14.0       ~ 165 1
17 NGC 1600 GiG 04 31 39.858 -05 05 09.97   8.9   10.81   ~ 355 0
18 NGC 1705 SBG 04 54 13.4661493464 -53 21 39.471592428 12.32 12.96 12.56 12.58 12.9 ~ 617 1
19 NGC 1700 GiG 04 56 56.3160873072 -04 51 56.794713228   12   11.14   ~ 339 1
20 NGC 2434 GiG 07 34 51.1504542360 -69 17 02.996020032 12.82 12.50 11.26 10.84   ~ 181 1
21 NGC 2681 LIN 08 53 32.7183058512 +51 18 49.159212120 11.40 11.09 10.29     ~ 311 1
22 NGC 2865 GiG 09 23 30.205 -23 09 41.37   12.39 11.43 11.06   ~ 233 0
23 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 972 2
24 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 750 1
25 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1422 0
26 NGC 3585 GiG 11 13 17.109 -26 45 17.96   10.64   9.22   ~ 271 0
27 [VV2006] J111654.8+180304 QSO 11 16 54.657 +18 03 06.51   13.84 12.76     ~ 450 0
28 NGC 3923 GiG 11 51 01.783 -28 48 22.36 11.41 10.59 9.80 8.88   ~ 420 1
29 NGC 4125 GiP 12 08 06.017 +65 10 26.88 11.14 10.65 9.72     ~ 411 2
30 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1171 0
31 NGC 4325 BiC 12 23 06.662 +10 37 16.45   15.0       ~ 123 1
32 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 820 0
33 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1699 2
34 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 624 0
35 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6271 0
36 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 2026 2
37 NGC 4494 GiP 12 31 24.0391348536 +25 46 30.071664120   10.55 9.74     ~ 461 0
38 M 89 LIN 12 35 39.8073444 +12 33 22.830809 11.29 10.73 9.75     ~ 962 2
39 NGC 4555 LIN 12 35 41.1918612696 +26 31 23.087609256   13.5       ~ 85 0
40 M 59 GiG 12 42 02.2581375168 +11 38 48.909507756   11.0       ~ 675 0
41 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1077 1
42 M 60 GiP 12 43 39.9708251928 +11 33 09.688174056   10.3       ~ 1303 1
43 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 834 0
44 NGC 5018 GiP 13 13 01.0452720960 -19 31 05.649751992   11.71   10.31   ~ 293 1
45 NGC 5044 BiC 13 15 23.9607836592 -16 23 07.547751744   11.9   10.74   ~ 477 0
46 NGC 5102 EmG 13 21 57.6100832352 -36 37 48.395156160   9.74 9.65 8.47 10.2 ~ 347 1
47 NGC 5171 GiG 13 29 21.5707210536 +11 44 06.389823624   14.7       ~ 55 0
48 NGC 5253 AGN 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33   ~ 1316 4
49 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 815 1
50 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 525 3
51 IC 1262 BiC 17 33 02.0176600056 +43 45 34.803150516   14.9       ~ 70 0
52 NGC 6861 GiP 20 07 19.482 -48 22 12.94   12.01 11.10 10.43   ~ 171 0
53 NGC 6868 GiP 20 09 54.082 -48 22 46.25   11.58 9.22 10.01 7.91 ~ 214 1
54 IC 1459 GiP 22 57 10.6071797352 -36 27 43.992307260   10.96 11.85 9.34 10.3 ~ 602 2
55 NGC 7618 GiG 23 19 47.2346536992 +42 51 09.228387528   14.3       ~ 58 2
56 NGC 7619 GiG 23 20 14.524 +08 12 22.63   12.7       ~ 424 0

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2022.07.06-09:54:37

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