2019ApJ...887..259H

Query : 2019ApJ...887..259H

2019ApJ...887..259H - Astrophys. J., 887, 259-259 (2019/December-3)

Globular cluster systems and X-ray atmospheres in galaxies.

HARRIS G.L.H., BABYK I.V., HARRIS W.E. and McNAMARA B.R.

Abstract (from CDS):

We compare the empirical relationships between the mass of a galaxy's globular cluster system (GCS) MGCS, the gas mass in the hot X-ray atmosphere MX within a fiducial radius of 5re, the total gravitational mass Mgrav within 5re, and lastly the total halo mass Mh calibrated from weak lensing. We use a sample of 45 early-type galaxies for which both GCS and X-ray data are available; all the galaxies in our sample are relatively high-mass with Mh > 1012M☉. We find that MX∝Mh1.0, similar to the previously known scaling relation MGCS∝Mh1.0. Both components scale much more steeply than the more well known dependence of total stellar mass M*∝Mh0.3 for luminous galaxies. These results strengthen previous suggestions that feedback had little effect on formation of the GCS. The current data are also used to measure the relative mass fractions of baryonic matter and dark matter within 5re. We find a strikingly uniform mean of <fDM>=0.83 with few outliers and an rms scatter of ±0.07. This result is in good agreement with two recent suites of hydrodynamic galaxy formation models.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): Globular star clusters - X-ray sources - Galaxy masses

Simbad objects: 45

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Number of rows : 45
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 NGC 708 rG 01 52 46.482 +36 09 06.53 14.85 14.27 13.29 12.67 12.09 ~ 259 3
2 NGC 720 Sy1 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 536 0
3 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 592 0
4 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
5 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
6 NGC 1332 GiP 03 26 17.321 -21 20 07.33   11.45   9.84   ~ 378 0
7 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
8 NGC 1404 rG 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 787 1
9 NGC 1407 rG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 613 2
10 NGC 1600 rG 04 31 39.858 -05 05 09.97   8.9   10.81   ~ 409 1
11 NGC 1700 EmG 04 56 56.3160873072 -04 51 56.794713228   12   11.14   ~ 356 1
12 NGC 2434 EmG 07 34 51.1504542360 -69 17 02.996020032 12.82 12.50 11.26 10.84   ~ 192 1
13 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 526 2
14 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
15 NGC 3384 GiG 10 48 16.8855574392 +12 37 45.371165844   10.0       ~ 617 1
16 NGC 3557 Sy1 11 09 57.653 -37 32 21.02   11.50 10.40 9.79   ~ 283 2
17 NGC 3585 GiG 11 13 17.109 -26 45 17.96   10.64   9.22   ~ 304 0
18 NGC 3607 Sy2 11 16 54.65687 +18 03 06.5120   13.84 12.76     ~ 490 1
19 NGC 3923 GiG 11 51 01.783 -28 48 22.36 11.41 10.59 9.80 8.88   ~ 459 1
20 NGC 4073 BiC 12 04 27.0598775760 +01 53 45.611893752   13.8 13.21 14.249   ~ 211 1
21 NGC 4203 LIN 12 15 05.0549203560 +33 11 50.383965120   12.98 11.99     ~ 514 2
22 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
23 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 988 2
24 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 871 0
25 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
26 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 678 0
27 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1126 1
28 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
29 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
30 NGC 4526 GiC 12 34 03.02853 +07 41 56.9040   10.6       ~ 707 0
31 M 89 Sy2 12 35 39.80733343 +12 33 22.8308657 11.29 10.73 9.75     ~ 1037 2
32 NGC 4564 GiG 12 36 26.9869512504 +11 26 21.204472848 12.51 12.05 11.12     ~ 615 1
33 M 59 GiG 12 42 02.2581375168 +11 38 48.909507756   11.0       ~ 721 0
34 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
35 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
36 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
37 NGC 5018 GiP 13 13 01.0452720960 -19 31 05.649751992   11.71   10.31   ~ 335 1
38 IC 4296 rG 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 520 2
39 NGC 5813 LIN 15 01 11.2302420864 +01 42 07.141569696 12.00 11.45 10.46 10.06   ~ 673 2
40 NGC 5846 rG 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 891 2
41 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 578 2
42 NGC 6482 GiG 17 51 48.8339247888 +23 04 18.889271112 12.71 12.35 11.45     ~ 220 1
43 NGC 6861 EmG 20 07 19.482 -48 22 12.94   12.01 11.10 10.43   ~ 211 0
44 IC 1459 rG 22 57 10.60682195 -36 27 43.9966421   10.96 11.85 9.34 10.3 ~ 652 2
45 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 438 1

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