2023A&A...678A.181B

Query : 2023A&A...678A.181B

2023A&A...678A.181B - Astronomy and Astrophysics, volume 678A181 (2023/10-1)

CHEX-MATE: X-ray absorption and molecular content of the interstellar medium toward galaxy clusters.

BOURDIN H., DE LUCA F., MAZZOTTA P., BARTALUCCI I., DONAHUE M., ECKERT D., ETTORI S., GASTALDELLO F., GHIZZARDI S., KAY S., LOVISARI L., MAUGHAN B., OPPIZZI F., POINTECOUTEAU E., PRATT G.W., ROSSETTI M. and SERENO M.

Abstract (from CDS):

The X-ray spectrum of extragalactic sources, such as galaxy clusters, is affected by the photo-absorption of various components of the Galactic interstellar medium (ISM). The resulting spectral distortion contributes to the systematics of cluster temperature measurements. It essentially depends on the neutral (atomic+molecular) Galactic hydrogen density column, NH, which remains challenging to map across the sky in the lack of a straightforward tracer of the molecular gas phase in the ISM. Combining data from the HI4PI and Planck HFI sky surveys, we investigate the mass fraction of molecular gas across the line of sight of CHEX-MATE galaxy clusters by searching for thermal dust emission excess with respects to the neutral atomic hydrogen density column, NHI. Consistent with earlier studies of the ISM based on IRAS and Planck data, we detect dust emission excess along the line of sight of some members of the CHEX-MATE cluster catalogue that are mostly localised behind dense ISM regions. We find that the CHEX-MATE cluster catalogue can be divided into three categories: 40% of members are located behind low NHI regions where the molecular mass fraction is negligible, 40% of members are located behind intermediate NHI regions where the molecular gas fraction would reach 5% on average, and the remaining 20% of members are located behind high NHI regions that locally exhibit even higher molecular gas fractions. The apparent cluster temperature shifts associated with the molecular content of the ISM are about 1% or less for most CHEX-MATE clusters, but can exceed 5% in the highest NHI regions.

Abstract Copyright: © The Authors 2023

Journal keyword(s): dust - extinction - galaxies: clusters: intracluster medium

VizieR on-line data: <Available at CDS (J/A+A/678/A181): tablea1.dat>

Errata: erratum vol. 700, art. C6 (2025)

Simbad objects: 108

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Number of rows : 108
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 ACO 7 ClG 00 11 43.134 +32 24 46.55           ~ 82 0
2 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 1077 0
3 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 517 0
4 MCXC J0019.6+2517 ClG 00 19 39.1 +25 17 27           ~ 29 0
5 ACO 21 ClG 00 20 38.75 +28 41 40.5           ~ 122 0
6 ACO 2813 ClG 00 43 22.8 -20 37 21           ~ 111 0
7 ACO 115 ClG 00 55 59 +26 23.2           ~ 295 1
8 ACO 209 ClG 01 31 52.9 -13 36 53           ~ 326 0
9 ACT-CL J0137.4-0827 ClG 01 37 24.9 -08 27 22           ~ 50 0
10 ACT-CL J0159.0-3413 ClG 01 59 00.3 -34 13 00           ~ 33 0
11 ACO 344 ClG 02 21 30.0712 +21 21 16.692           ~ 28 0
12 ACO 370 ClG 02 39 50.5 -01 35 08           ~ 825 0
13 ACT-CL J0417.5-1154 ClG 04 17 34.6 -11 54 32           ~ 116 0
14 ACO 521 ClG 04 54 08.6 -10 14 39           ~ 279 0
15 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 465 0
16 ClG 0451-03 ClG 04 54 10.9 -03 01 07     20.0     ~ 368 0
17 PLCKESZ G241.2-28.7 ClG 05 43 04 -36 01.3           ~ 16 0
18 ACT-CL J0553.4-3342 ClG 05 53 27.200 -33 42 53.02           ~ 74 0
19 MCS J0600.1-2008 ClG 06 00 17.0 -20 06 16           ~ 47 0
20 PSZ1 G206.45+13.89 ClG 07 29 59.2815 +11 56 20.732           ~ 19 0
21 ACO 586 ClG 07 32 20.3 +31 37 58           ~ 196 0
22 ZwCl 0733+1514 ClG 07 35 50.4514 +15 05 52.497           ~ 17 0
23 MCXC J0738.2+0101 ClG 07 38 17.6878 +01 01 37.431           ~ 14 0
24 PLCKESZ G210.6+17.1 ClG 07 48 46.60 +09 40 10.6           ~ 14 0
25 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 277 0
26 ClG 0906.5+1110 ClG 09 09 12.7 +10 58 32           ~ 108 0
27 ACO 795 ClG 09 24 11.26 +14 09 03.5           ~ 120 0
28 ZwCl 0947+1723 ClG 09 49 51.8 +17 07 05           ~ 92 0
29 ACO 961 ClG 10 16 39.24 +33 39 44.4           ~ 61 0
30 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 232 0
31 ACO 1190 ClG 11 11 43.83 +40 51 43.5           ~ 145 0
32 ACO 1201 ClG 11 12 54.4 +13 26 08           ~ 131 1
33 ACO 1246 ClG 11 23 57.4 +21 29 14           ~ 118 0
34 ACO 1272 ClG 11 29 39.10 +23 51 29.0           ~ 39 0
35 ACO 1300 ClG 11 32 00.7 -19 53 34           ~ 168 0
36 MCS J1149.5+2223 ClG 11 49 35.8 +22 23 55           ~ 546 0
37 PLCKESZ G287.0+32.9 ClG 11 50 49.20 -28 04 36.5           ~ 100 0
38 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
39 ACO 1430 ClG 11 59 17.5 +49 47 46           ~ 59 0
40 ACO 1443 ClG 12 01 12.1 +23 05 57           ~ 53 0
41 MCS J1206.2-0847 ClG 12 06 12.2 -08 48 02           ~ 286 0
42 ACO 1489 ClG 12 12 19.2 +27 33 14           ~ 52 0
43 ACO 1552 ClG 12 29 46.18 +11 44 32.3           ~ 109 0
44 ACO 1553 ClG 12 30 48.000 +10 33 21.60           ~ 95 0
45 ACO 1589 ClG 12 41 08.09 +18 33 18.5           ~ 112 0
46 ACO 1677 ClG 13 05 52.6 +30 54 06           ~ 70 0
47 ACO 1691 ClG 13 11 11.14 +39 16 38.4           ~ 116 0
48 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
49 ACO 1697 ClG 13 12 59.63 +46 15 39.5           ~ 58 0
50 MCXC J1332.7+5032 ClG 13 32 44.8 +50 32 24           ~ 134 0
51 ACO 1759 ClG 13 33 59.1 +20 18 01           ~ 49 0
52 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 335 0
53 ACO 1775 ClG 13 41 50.60 +26 21 10.6           ~ 324 0
54 ClG J1347-1145 ClG 13 47 30.5 -11 45 07           ~ 577 0
55 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
56 ACO 1800 ClG 13 49 27.19 +28 04 44.6           ~ 127 0
57 ACO 1831 ClG 13 59 19.42 +27 58 08.2           ~ 166 0
58 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
59 ACO 1902 ClG 14 21 39.7 +37 17 43           ~ 67 0
60 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
61 ACO 1920 ClG 14 27 25.25 +55 45 13.5           ~ 46 0
62 ACO 1925 ClG 14 28 22.39 +56 46 43.7           ~ 58 0
63 PSZ1 G325.70+17.31 ClG 14 47 26.6294 -40 20 44.553           ~ 15 0
64 ACO S 780 ClG 14 59 29.1 -18 10 45           ~ 93 0
65 ACO 2009 ClG 15 00 15.2 +21 22 09           ~ 113 0
66 ACO 2018 ClG 15 01 17.59 +47 16 30.2           ~ 66 0
67 ACO 2034 ClG 15 10 03.9 +33 30 57           ~ 248 1
68 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
69 2MASX J15150305-1521537 ClG 15 14.9 -15 23           ~ 57 0
70 ACO 2061 ClG 15 21 19.90 +30 37 13.0           ~ 214 1
71 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
72 ACO 2069 ClG 15 24 02.92 +29 53 20.3           ~ 165 0
73 ACO 2108 ClG 15 40 21.78 +17 52 04.9           ~ 61 0
74 ACO 2122 ClG 15 44 55.93 +36 06 05.2           ~ 243 0
75 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
76 CIZA J1601.7-7544 ClG 16 01 46.7 -75 44 46           ~ 40 0
77 ACO 2175 ClG 16 20 30.70 +29 53 31.2           ~ 133 0
78 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
79 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 381 0
80 ACO 2244 ClG 17 02 40.33 +34 02 58.7           ~ 301 0
81 ACO 2249 ClG 17 09 36.76 +34 28 04.1           ~ 136 0
82 ZwCl 1715+4229 ClG 17 17 19.1 +42 26 55           ~ 61 0
83 ACO 2254 ClG 17 17 45.90 +19 40 22.8           ~ 79 0
84 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 131 0
85 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 284 0
86 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
87 MCS J1731.6+2252 ClG 17 31 39.2 +22 51 50           ~ 48 0
88 ZwCl 1742+3306 ClG 17 44 16.2753 +32 59 55.115           ~ 93 0
89 ZwCl 1745+4513 ClG 17 47 12.0 +45 12 37           ~ 46 0
90 eMACS J1756.8+4008 ClG 17 56 52.6 +40 08 07           ~ 26 0
91 ACO 2302 ClG 18 19 57.6 +57 09 58           ~ 37 0
92 EXSS 1832.5+6447 ClG 18 32 32.7 +64 49 59           ~ 22 0
93 CIZA J1857.6+3800 ClG 18 57 39.5 +38 00 30           ~ 24 0
94 PLCKESZ G004.5-19.5 ClG 19 16 54 -33 30.5           ~ 31 0
95 ACO 2319 ClG 19 21 14.0 +43 56 57           ~ 495 1
96 CIZA J1926.1+4833 ClG 19 26 11.2214 +48 33 22.439           ~ 18 0
97 ZwCl 2102+1351 ClG 21 04 51.0939 +14 02 04.941           ~ 24 0
98 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
99 ACO 2409 ClG 22 00 52.7 +20 58 27           ~ 101 0
100 ACT-CL J2211.7-0349 ClG 22 11 44.8 -03 49 33           ~ 96 0
101 ACT-CL J2214.9-1359 ClG 22 14 57.3 -14 00 12           ~ 100 0
102 ACO 2443 ClG 22 26 14.09 +17 25 13.5           ~ 126 0
103 BAX 337.1433+20.6131 ClG 22 28 32.6 +20 37 08           ~ 132 0
104 ClG J2243-0935 ClG 22 43 21.1 -09 35 43           ~ 96 0
105 ACO S 1063 ClG 22 48 45.4 -44 31 42           ~ 395 0
106 ACO S 1077 ClG 22 58 52.34 -34 46 54.6           ~ 198 0
107 ACO 2631 ClG 23 37 40.7 +00 16 35           ~ 183 0
108 ACT-CL J2344.7-4243 ClG 23 44 43.9 -42 43 11           ~ 229 0

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