2018ApJ...857...32B

Query : 2018ApJ...857...32B

2018ApJ...857...32B - Astrophys. J., 857, 32-32 (2018/April-2)

X-ray scaling relations of early-type galaxies.

BABYK I.V., McNAMARA B.R., NULSEN P.E.J., HOGAN M.T., VANTYGHEM A.N., RUSSELL H.R., PULIDO F.A. and EDGE A.C.

Abstract (from CDS):

X-ray luminosity, temperature, gas mass, total mass, and their scaling relations are derived for 94 early-type galaxies (ETGs) using archival Chandra X-ray Observatory observations. Consistent with earlier studies, the scaling relations, LX ∝ T4.5±0.2, M ∝ T2.4±0.2, and LX ∝ M2.8±0.3, are significantly steeper than expected from self-similarity. This steepening indicates that their atmospheres are heated above the level expected from gravitational infall alone. Energetic feedback from nuclear black holes and supernova explosions are likely heating agents. The tight LX-T correlation for low-luminosity systems (i.e., below 1040 erg s–1) are at variance with hydrodynamical simulations, which generally predict higher temperatures for low-luminosity galaxies. We also investigate the relationship between total mass and pressure, YX = Mg x T, finding M∝YX^0.45±0.04^. We explore the gas mass to total mass fraction in ETGs and find a range of 0.1%-1.0%. We find no correlation between the gas-to-total mass fraction with temperature or total mass. Higher stellar velocity dispersions and higher metallicities are found in hotter, brighter, and more massive atmospheres. X-ray core radii derived from β-model fitting are used to characterize the degree of core and cuspiness of hot atmospheres.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: elliptical and lenticular, cD - X-rays: galaxies

Simbad objects: 97

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Number of rows : 97
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 193 rG 00 39 18.5878961880 +03 19 52.605787764   14.3       ~ 149 1
2 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
3 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
4 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 869 2
5 NGC 326 rG 00 58 22.73535 +26 51 55.9192   14.9 13     ~ 188 1
6 NGC 383 AGN 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 821 3
7 IC 1633 rG 01 09 55.5490585560 -45 55 52.102562844   12.23       ~ 93 3
8 NGC 499 LIN 01 23 11.4954761664 +33 27 36.656232300   13.0 12.3     ~ 181 0
9 NGC 507 rG 01 23 39.950 +33 15 22.22   13.0       ~ 459 1
10 NGC 533 rG 01 25 31.4074984248 +01 45 33.236656812   13.1 14.11     ~ 237 1
11 NGC 708 rG 01 52 46.482 +36 09 06.53 14.85 14.27 13.29 12.67 12.09 ~ 259 3
12 NGC 720 Sy1 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 536 0
13 NGC 741 rG 01 56 23.2 +05 37 35   13.2       ~ 309 2
14 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 592 0
15 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
16 NGC 1266 Sy1 03 16 00.7739640240 -02 25 37.827013584   14   12.46   ~ 332 2
17 NGC 1265 rG 03 18 15.674 +41 51 27.94   14.7       ~ 386 2
18 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
19 NGC 1332 GiP 03 26 17.321 -21 20 07.33   11.45   9.84   ~ 378 0
20 NGC 1386 Sy1 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 553 1
21 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
22 NGC 1404 rG 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 787 1
23 NGC 1407 rG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 613 2
24 NGC 1482 EmG 03 54 38.928 -20 30 08.82 13.15 13.14 12.15 11.29   ~ 313 2
25 NGC 1550 BiC 04 19 37.9450450152 +02 24 35.918168940   14.0       ~ 183 1
26 NGC 1600 rG 04 31 39.858 -05 05 09.97   8.9   10.81   ~ 409 1
27 NGC 1700 EmG 04 56 56.3160873072 -04 51 56.794713228   12   11.14   ~ 356 1
28 MCG-07-12-009 BiC 05 40 06.6705952632 -40 50 11.448265704   13.35   11.82   ~ 63 1
29 NGC 2434 EmG 07 34 51.1504542360 -69 17 02.996020032 12.82 12.50 11.26 10.84   ~ 192 1
30 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 526 2
31 NGC 3091 BiC 10 00 14.125 -19 38 11.32   12.04 10.61 10.56 9.25 ~ 192 0
32 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
33 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
34 NGC 3384 GiG 10 48 16.8855574392 +12 37 45.371165844   10.0       ~ 617 1
35 NGC 3557 Sy1 11 09 57.653 -37 32 21.02   11.50 10.40 9.79   ~ 283 2
36 NGC 3585 GiG 11 13 17.109 -26 45 17.96   10.64   9.22   ~ 304 0
37 NGC 3607 Sy2 11 16 54.65687 +18 03 06.5120   13.84 12.76     ~ 490 1
38 NGC 3665 GiG 11 24 43.630 +38 45 46.05 13.71 13.26 11.62     ~ 364 1
39 NGC 3923 GiG 11 51 01.783 -28 48 22.36 11.41 10.59 9.80 8.88   ~ 459 1
40 NGC 3955 EmG 11 53 57.1547672856 -23 09 51.315942528   12.30 11.90 11.19   ~ 105 1
41 NGC 4036 LIN 12 01 26.7603659808 +61 53 44.625848784   12.18 11.20     ~ 282 0
42 NGC 4073 BiC 12 04 27.0598775760 +01 53 45.611893752   13.8 13.21 14.249   ~ 211 1
43 NGC 4104 rG 12 06 38.9098151088 +28 10 27.184493280   13.7 13.58     ~ 114 1
44 NGC 4125 GiP 12 08 06.017 +65 10 26.88 11.14 10.65 9.72     ~ 448 2
45 NGC 4203 LIN 12 15 05.0549203560 +33 11 50.383965120   12.98 11.99     ~ 514 2
46 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
47 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 988 2
48 NGC 4325 BiC 12 23 06.662 +10 37 16.45   15.0       ~ 140 1
49 NGC 4342 GiP 12 23 39.0032044488 +07 03 14.359499100   13.0       ~ 337 0
50 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 871 0
51 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
52 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 678 0
53 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
54 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1126 1
55 NGC 4457 LIN 12 28 59.0252479200 +03 34 14.215556928   11.9       ~ 342 0
56 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
57 NGC 4477 Sy2 12 30 02.1955766304 +13 38 11.543715888 11.98 11.38 10.42     ~ 419 2
58 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
59 NGC 4526 GiC 12 34 03.02853 +07 41 56.9040   10.6       ~ 707 0
60 M 89 Sy2 12 35 39.80733343 +12 33 22.8308657 11.29 10.73 9.75     ~ 1037 2
61 NGC 4555 LIN 12 35 41.1918612696 +26 31 23.087609256   13.5       ~ 102 0
62 NGC 4564 GiG 12 36 26.9869512504 +11 26 21.204472848 12.51 12.05 11.12     ~ 615 1
63 M 59 GiG 12 42 02.2581375168 +11 38 48.909507756   11.0       ~ 721 0
64 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
65 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
66 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
67 NGC 4696 rG 12 48 49.2724775784 -41 18 39.304053252   11.21   10.7   ~ 510 3
68 NGC 4710 H2G 12 49 38.958 +15 09 55.76   11.6       ~ 329 0
69 NGC 4782 rG 12 54 35.698 -12 34 06.92   13 12.75 13.11   ~ 158 2
70 NGC 4936 Sy2 13 04 17.091 -30 31 34.71   11.76 12.23 10.13 10.9 ~ 115 0
71 NGC 5018 GiP 13 13 01.0452720960 -19 31 05.649751992   11.71   10.31   ~ 335 1
72 NGC 5044 BiC 13 15 23.9607836592 -16 23 07.547751744   11.9   10.74   ~ 531 0
73 NGC 5171 GiG 13 29 21.5707210536 +11 44 06.389823624   14.7       ~ 61 0
74 IC 4296 rG 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 520 2
75 NGC 5353 rG 13 53 26.7104646981 +40 16 59.200050598   11.8   10.57   ~ 309 1
76 NGC 5532 LIN 14 16 52.9370483073 +10 48 26.616631120   13.3 12.59     ~ 364 2
77 NGC 5813 LIN 15 01 11.2302420864 +01 42 07.141569696 12.00 11.45 10.46 10.06   ~ 673 2
78 NGC 5846 rG 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 891 2
79 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 578 2
80 NGC 6098 GiP 16 15 34.1878757976 +19 27 43.112016936   14.6       ~ 28 0
81 NGC 6107 rG 16 17 20.143 +34 54 05.98   14.7       ~ 83 0
82 NGC 6251 Bla 16 32 31.96989253 +82 32 16.3999044 15.24 14.66 12.89 7.62   ~ 772 1
83 NGC 6269 rG 16 57 58.1011343880 +27 51 15.883449192   14.4 13.73     ~ 109 1
84 NGC 6278 GiP 17 00 50.3235598776 +23 00 39.735179064   13.8       ~ 173 0
85 NGC 6338 Bla 17 15 22.9842192344 +57 24 40.346559927   14.2   8   ~ 205 2
86 IC 1262 rG 17 33 02.0176600056 +43 45 34.803150516   14.9       ~ 79 0
87 NGC 6482 GiG 17 51 48.8339247888 +23 04 18.889271112 12.71 12.35 11.45     ~ 220 1
88 NGC 6861 EmG 20 07 19.482 -48 22 12.94   12.01 11.10 10.43   ~ 211 0
89 NGC 6868 Sy2 20 09 54.08207 -48 22 46.2470   11.58 9.22 10.01 7.91 ~ 239 2
90 NGC 7176 GiP 22 02 08.4333223632 -31 59 23.446700592   12.08   10.59   ~ 131 0
91 NGC 7196 AG? 22 05 54.8107967352 -50 07 09.868854000   12.43 11.54 10.89   ~ 122 0
92 IC 1459 rG 22 57 10.60682195 -36 27 43.9966421   10.96 11.85 9.34 10.3 ~ 652 2
93 IC 5267 Sy2 22 57 13.572 -43 23 46.11   11.18 10.47 9.83 10.4 ~ 151 0
94 NGC 7618 GiG 23 19 47.2346536992 +42 51 09.228387528   14.3       ~ 72 2
95 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 438 1
96 IC 5358 rG 23 47 45.1086508608 -28 08 26.650470372   13.42 14.72 11.99   ~ 88 1
97 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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