2020ApJ...905...28H

Query : 2020ApJ...905...28H

2020ApJ...905...28H - Astrophys. J., 905, 28-28 (2020/December-2)

Measuring dark matter in galaxies: the mass fraction within five effective radii.

HARRIS W.E., REMUS R.-S., HARRIS G.L.H. and BABYK I.V.

Abstract (from CDS):

Large galaxies may contain an "atmosphere" of hot interstellar X-ray gas, and the temperature and radial density profile of this gas can be used to measure the total mass of the galaxy contained within a given radius r. We use this technique for 102 early-type galaxies with stellar masses M* > 1010M☉, to evaluate the mass fraction of dark matter (DM) within the fiducial radius r = 5re, denoted f5 = fDM(5re). On average, these systems have a median ≃0.8–0.9 with a typical galaxy-to-galaxy scatter ±0.15. Comparisons with mass estimates made through the alternative techniques of satellite dynamics (e.g., velocity distributions of globular clusters, planetary nebulae, satellite dwarfs) as well as strong lensing show encouraging consistency over the same range of stellar mass. We find that many of the disk galaxies (S0/SA0/SB0) have a significantly higher mean f5 than do the pure ellipticals, by Δf5 ≃ 0.1. We suggest that this higher level may be a consequence of sparse stellar haloes and quieter histories with fewer major episodes of feedback or mergers. Comparisons are made with the Magneticum Pathfinder suite of simulations for both normal and centrally dominant "Brightest Cluster" galaxies. Though the observed data exhibit somewhat larger scatter at a given galaxy mass than do the simulations, the mean level of DM mass fraction for all classes of galaxies is in good first-order agreement with the simulations. Finally, we find that the group galaxies with stellar masses near M* ∼ 1011M☉ have relatively more outliers at low f5 than in other mass ranges, possibly the result of especially effective AGN feedback in that mass range leading to expansion of their DM halos.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): X-ray surveys - Galaxy masses - Baryonic dark matter - Galaxy dark matter halos

VizieR on-line data: <Available at CDS (J/ApJ/905/28): table1.dat table2.dat>

Simbad objects: 102

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Number of rows : 102
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NGC 193 rG 00 39 18.5878961880 +03 19 52.605787764   14.3       ~ 141 1
2 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 786 2
3 NGC 326 rG 00 58 22.6298561088 +26 51 58.701156300   14.9 13     ~ 183 2
4 NGC 383 rG 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 777 3
5 IC 1633 BiC 01 09 55.5490585560 -45 55 52.102562844   12.23       ~ 89 3
6 NGC 499 LIN 01 23 11.4954761664 +33 27 36.656232300   13.0 12.3     ~ 172 0
7 NGC 507 BiC 01 23 39.950 +33 15 22.22   13.0       ~ 440 3
8 NGC 533 GiG 01 25 31.4074984248 +01 45 33.236656812   13.1 14.11     ~ 227 0
9 NGC 708 BiC 01 52 46.482 +36 09 06.53 14.85 14.27 13.29 12.67 12.09 ~ 240 3
10 NGC 720 Sy1 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 522 0
11 NGC 741 rG 01 56 23.2 +05 37 35   13.2       ~ 294 2
12 NGC 1052 Sy2 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1298 2
13 IC 1860 Sy1 02 49 33.8577739752 -31 11 21.664508208   13.00   11.47   ~ 75 0
14 NGC 1132 EmG 02 52 51.82 -01 16 29.0   13.9   12.16   ~ 167 0
15 NGC 1266 Sy1 03 16 00.7739640240 -02 25 37.827013584   14   12.46   ~ 305 1
16 NGC 1265 GiC 03 18 15.674 +41 51 27.94   14.7       ~ 366 2
17 NGC 1316 BL? 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1387 1
18 NGC 1332 GiP 03 26 17.321 -21 20 07.33   11.45   9.84   ~ 348 0
19 NGC 1387 Sy2 03 36 57.0337458600 -35 30 23.675934060 12.18 11.75 10.69 10.16   ~ 262 1
20 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1569 1
21 NGC 1395 SyG 03 38 29.789 -23 01 39.69   10.71   8.99   ~ 277 0
22 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 750 1
23 NGC 1400 EmG 03 39 30.851 -18 41 17.25 12.48 12.01 10.96 10.45   ~ 299 1
24 NGC 1407 GiG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 583 1
25 NGC 1482 EmG 03 54 38.928 -20 30 08.82 13.15 13.14 12.15 11.29   ~ 294 2
26 NGC 1521 GiG 04 08 18.9110259504 -21 03 07.337782908   12.31   10.73   ~ 117 0
27 NGC 1550 BiC 04 19 37.9450450152 +02 24 35.918168940   14.0       ~ 176 1
28 NGC 1600 GiG 04 31 39.858 -05 05 09.97   8.9   10.81   ~ 381 0
29 NGC 1700 EmG 04 56 56.3160873072 -04 51 56.794713228   12   11.14   ~ 348 1
30 ESO 306-17 BiC 05 40 06.6705952632 -40 50 11.448265704   13.35   11.82   ~ 55 1
31 NGC 2305 GiG 06 48 37.2713054112 -64 16 23.745616176   12.82   10.98   ~ 77 0
32 NGC 2300 AG? 07 32 20.486 +85 42 31.90   12.2       ~ 335 0
33 NGC 2434 EmG 07 34 51.1504542360 -69 17 02.996020032 12.82 12.50 11.26 10.84   ~ 186 1
34 NGC 2563 GiG 08 20 35.6870161656 +21 04 04.111020012   13.7 12.39     ~ 154 1
35 NGC 3091 BiC 10 00 14.125 -19 38 11.32   12.04 10.61 10.56 9.25 ~ 184 0
36 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1391 3
37 NGC 3411 EmG 10 50 26.0811795768 -12 50 42.313849764   9.0   11.60   ~ 74 1
38 NGC 3557 Sy1 11 09 57.653 -37 32 21.02   11.50 10.40 9.79   ~ 275 2
39 [VV2006] J111654.8+180304 QSO 11 16 54.7 +18 03 06   13.84 12.76     ~ 467 0
40 NGC 3608 LIN 11 16 58.967 +18 08 54.71   11.7       ~ 508 0
41 NGC 3842 BiC 11 44 02.155 +19 56 59.37 14.22 13.70 11.82 12.04   ~ 287 3
42 NGC 3923 GiG 11 51 01.783 -28 48 22.36 11.41 10.59 9.80 8.88   ~ 439 1
43 NGC 4036 LIN 12 01 26.7603659808 +61 53 44.625848784   12.18 11.20     ~ 260 0
44 NGC 4073 BiC 12 04 27.0598775760 +01 53 45.611893752   13.8 13.21 14.249   ~ 200 1
45 NGC 4104 BiC 12 06 38.9098151088 +28 10 27.184493280   13.7 13.58     ~ 97 1
46 NGC 4125 GiP 12 08 06.017 +65 10 26.88 11.14 10.65 9.72     ~ 427 2
47 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1223 0
48 NGC 4291 GiG 12 20 17.699 +75 22 15.47   17.0       ~ 304 1
49 NGC 4325 BiC 12 23 06.662 +10 37 16.45   15.0       ~ 128 1
50 NGC 4342 GiP 12 23 39.0032044488 +07 03 14.359499100   13.0       ~ 314 0
51 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 840 0
52 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1762 2
53 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 644 0
54 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1340 2
55 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1084 1
56 NGC 4438 LIN 12 27 45.6705493536 +13 00 31.708096380 11.37 11.02 10.17     ~ 635 2
57 NGC 4457 LIN 12 28 59.0252479200 +03 34 14.215556928   11.9       ~ 308 0
58 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2092 2
59 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7189 3
60 M 89 LIN 12 35 39.80733343 +12 33 22.8308657 11.29 10.73 9.75     ~ 995 2
61 NGC 4555 LIN 12 35 41.1918612696 +26 31 23.087609256   13.5       ~ 95 0
62 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1396 3
63 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1117 1
64 M 60 GiP 12 43 39.9680 +11 33 09.696   10.3       ~ 1348 1
65 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 859 0
66 NGC 4696 BiC 12 48 49.2724775784 -41 18 39.304053252   11.21   10.7   ~ 490 3
67 NGC 4710 H2G 12 49 38.958 +15 09 55.76   11.6       ~ 310 0
68 NGC 4782 rG 12 54 35.698 -12 34 06.92   13 12.75 13.11   ~ 153 2
69 NGC 4936 Sy2 13 04 17.091 -30 31 34.71   11.76 12.23 10.13 10.9 ~ 109 0
70 NGC 5018 GiP 13 13 01.0452720960 -19 31 05.649751992   11.71   10.31   ~ 313 1
71 NGC 5044 BiC 13 15 23.9607836592 -16 23 07.547751744   11.9   10.74   ~ 501 0
72 NGC 5129 LIN 13 24 10.0256041224 +13 58 35.575742748   13.3       ~ 127 1
73 NGC 5171 GiG 13 29 21.5707210536 +11 44 06.389823624   14.7       ~ 58 0
74 IC 4296 AGN 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 494 2
75 NGC 5353 GiP 13 53 26.6998 +40 16 58.872   11.8   10.57   ~ 288 1
76 NGC 5419 BiC 14 03 38.7225244848 -33 58 41.881842120   11.77 11.33 10.21 14.44 ~ 198 2
77 NGC 5532 LIN 14 16 52.9532 +10 48 26.618   13.3 12.59     ~ 347 3
78 NGC 5813 LIN 15 01 11.2302420864 +01 42 07.141569696 12.00 11.45 10.46 10.06   ~ 637 1
79 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 849 1
80 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 552 3
81 NGC 6098 GiP 16 15 34.1878757976 +19 27 43.112016936   14.6       ~ 25 0
82 NGC 6107 BiC 16 17 20.143 +34 54 05.98   14.7       ~ 79 0
83 NGC 6251 Sy2 16 32 31.96989253 +82 32 16.3999044 15.24 14.66 12.89 7.62   ~ 727 0
84 NGC 6269 GiG 16 57 58.1011343880 +27 51 15.883449192   14.4 13.73     ~ 104 0
85 NGC 6278 GiP 17 00 50.3235598776 +23 00 39.735179064   13.8       ~ 159 0
86 NGC 6338 Bla 17 15 22.9752 +57 24 40.312   14.2   8   ~ 184 2
87 IC 1262 BiC 17 33 02.0176600056 +43 45 34.803150516   14.9       ~ 73 0
88 NGC 6407 GiG 17 44 57.664 -60 44 23.28   12.88   11.76   ~ 56 0
89 NGC 6482 GiG 17 51 48.8339247888 +23 04 18.889271112 12.71 12.35 11.45     ~ 208 1
90 IC 4765 BiC 18 47 18.150 -63 19 52.14   12.33 11.36 10.53 10.75 ~ 86 2
91 NGC 6861 EmG 20 07 19.482 -48 22 12.94   12.01 11.10 10.43   ~ 189 0
92 NGC 6868 Sy2 20 09 54.082 -48 22 46.25   11.58 9.22 10.01 7.91 ~ 226 1
93 NGC 7176 GiP 22 02 08.4333223632 -31 59 23.446700592   12.08   10.59   ~ 124 0
94 NGC 7196 AG? 22 05 54.8107967352 -50 07 09.868854000   12.43 11.54 10.89   ~ 115 0
95 UGC 12064 AGN 22 31 20.5885689288 +39 21 29.593072404   14.6       ~ 437 1
96 IC 1459 AGN 22 57 10.60682195 -36 27 43.9966421   10.96 11.85 9.34 10.3 ~ 624 2
97 IC 5267 Sy2 22 57 13.572 -43 23 46.11   11.18 10.47 9.83 10.4 ~ 144 0
98 NGC 7618 GiG 23 19 47.2346536992 +42 51 09.228387528   14.3       ~ 65 2
99 NGC 7619 GiG 23 20 14.524 +08 12 22.63   12.7       ~ 449 0
100 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 426 1
101 IC 5358 BiC 23 47 45.1086508608 -28 08 26.650470372   13.42 14.72 11.99   ~ 86 1
102 NGC 7796 Sy1 23 58 59.7964010520 -55 27 29.983148100   12.36 11.30 10.82   ~ 117 0

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