2025NatAs...9.1226C

Query : 2025NatAs...9.1226C

2025NatAs...9.1226C - Nature Astronomy, 9, 1226-1239 (2025/August-0)

A gas-rich cosmic web revealed by the partitioning of the missing baryons.

CONNOR L., RAVI V., SHARMA K., OCKER S.K., FABER J., HALLINAN G., HARNACH C., HELLBOURG G., HOBBS R., HODGE D., HODGES M., KOSOGOROV N., LAMB J., LAW C., RASMUSSEN P., SHERMAN M., SOMALWAR J., WEINREB S., WOODY D. and KONIETZKA R.M.

Abstract (from CDS):

Approximately half of the Universe's dark matter resides in collapsed halos; significantly less than half of the baryonic matter (protons and neutrons) remains confined to halos. A small fraction of baryons are in stars and the interstellar medium within galaxies. The majority are diffuse (<10–3 cm–3) and ionized (neutral fraction <10–4), located in the intergalactic medium (IGM) and in the halos of galaxy clusters, groups and galaxies. This diffuse ionized gas is notoriously difficult to measure, but has wide implications for galaxy formation, astrophysical feedback and precision cosmology. Recently, the dispersion of extragalactic fast radio bursts (FRBs) has been used to measure the total content of cosmic baryons. Here we present a large cosmological sample of FRB sources localized to their host galaxies. We have robustly partitioned the missing baryons into the IGM, galaxy clusters and galaxies, providing a late-Universe measurement of the cosmic baryon abundance, ${\varOmega }_{{\mathrm{b}}}{h}_{70}=0.05{1}_{-0.006}^{+0.006}$, where Ω b is the baryon density parameter and h 70 is the scaled Hubble constant. Our results indicate efficient feedback processes that can deplete galaxy halos and enrich the IGM (total baryon fraction in the IGM is ${f}_{{\rm{IGM}}}=0.7{6}_{-0.11}^{+0.10}$), agreeing with the baryon-rich cosmic web scenario seen in cosmological simulations. Our results may reduce the ' S 8 tension' in cosmology, as strong feedback leads to suppression of the matter power spectrum.


Abstract Copyright: 2025 The Author(s), under exclusive licence to Springer Nature Limited

Journal keyword(s):

Status at CDS : Tables of objects will be appraised for possible ingestion in SIMBAD.

Simbad objects: 76

goto Full paper

goto View the references in ADS

Number of rows : 76
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 FRB 20221116A rB 01 24 50.450 +72 39 14.10           ~ 14 0
2 FRB 20180916B rB 01 58 00.750 +65 43 00.30           ~ 457 0
3 FRB 20220319D rB 02 08 42.700 +71 02 06.94           ~ 39 0
4 FRB 20180924A rB 02 21 50.4000 +37 31 12.000           ~ 10 0
5 FRB 200906 rB 03 33 59.08 -14 04 59.5           ~ 43 0
6 FRB 20240123A rB 04 24 32.161 +71 35 47.37           ~ 10 0
7 NGC 1560 GiG 04 32 49.087 +71 52 59.20   12.1       ~ 264 0
8 FRB 20221113A rB 04 45 38.640 +70 18 26.60           ~ 14 0
9 FRB 20220726A rB 04 55 46.960 +69 55 44.80           ~ 16 0
10 FRB 20201124A rB 05 07 57.600 +26 11 24.00           ~ 307 0
11 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
12 FRB 180301 rB 06 12 43.40 +04 33 44.8           ~ 125 0
13 FRB 20231220A rB 08 08 49.305 +71 43 18.17           ~ 10 0
14 NGC 2523 AG? 08 15 00.1388949576 +73 34 44.302765908   12.4       ~ 95 0
15 UGC 4279 AG? 08 16 05.65 +73 40 16.3   16.5       ~ 6 0
16 FRB 20221027A rB 08 43 29.230 +72 06 03.50           ~ 14 0
17 FRB 20220310F rB 08 58 52.920 +73 29 27.00           ~ 25 0
18 FRB 20221029A rB 09 27 51.220 +72 27 08.34           ~ 15 0
19 FRB 20231120A rB 09 35 56.150 +73 17 04.80           ~ 16 0
20 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
21 FRB 20200120E rB 09 57 56.7 +68 49 32           ~ 219 0
22 FRB 20230216A rB 10 25 53.320 +03 26 12.57           ~ 12 0
23 FRB 211212 rB 10 30 40.700 +01 40 36.80           ~ 30 0
24 NAME FRB 181030.J1054+73 rB 10 33 24.0000 +73 47 24.000           ~ 79 0
25 FRB 20240213A rB 10 35 02.703 +71 46 31.29           ~ 10 0
26 FRB 20220330D rB 10 55 00.300 +70 21 02.70           ~ 15 0
27 FRB 20230628A rB 11 07 08.810 +72 16 54.64           ~ 16 0
28 FRB 20230712A rB 11 09 26.050 +72 33 28.02           ~ 13 0
29 FRB 20240229A rB 11 34 56.311 +71 47 01.68           ~ 10 0
30 FRB 20230307A rB 11 51 07.520 +71 41 44.30           ~ 14 0
31 FRB 190714 rB 12 15 55.1 -13 01 16           ~ 64 0
32 FRB 211127 rB 13 19 09.500 -18 49 28.40           ~ 32 0
33 FRB 210320 rB 13 37 16.800 -15 24 37.30           ~ 29 0
34 FRB 211203 rB 13 37 52.800 -31 22 04.00           ~ 20 0
35 FRB 190523 rB 13 48 15.6 +72 28 11           ~ 109 0
36 FRB 20220105A rB 13 55 12.94 +22 27 59.4           ~ 19 0
37 FRB 20240119A rB 14 32 28.067 +71 45 19.55           ~ 10 0
38 FRB 20220418A rB 14 36 25.340 +70 05 45.40           ~ 24 0
39 FRB 200430 rB 15 18 49.54 +12 22 36.8           ~ 59 0
40 FRB 20230124A rB 15 27 39.900 +70 58 05.20           ~ 15 0
41 FRB 20230626A rB 15 42 31.100 +71 08 00.77           ~ 14 0
42 FRB 20220920A rB 16 01 01.700 +70 55 07.68           ~ 28 0
43 FRB 20190520B rB 16 02 04.270 -11 17 17.32           ~ 211 0
44 FRB 20231123B rB 16 10 09.160 +70 47 06.20           ~ 14 0
45 FRB 20221219A rB 17 10 31.150 +71 37 36.63           ~ 19 0
46 LEDA 2744207 BiC 17 10 39.4935203280 +71 34 26.665051404           ~ 3 0
47 FRB 20201123A rB 17 34 40.560 -50 46 02.00           ~ 12 0
48 FRB 20240215A rB 17 53 43.990 +71 39 14.28           ~ 10 0
49 FRB 20220204A rB 18 16 54.300 +69 43 21.01           ~ 15 0
50 FRB 20221012A rB 18 43 11.690 +70 31 27.15           ~ 25 0
51 FRB 20220914A rB 18 48 13.630 +73 20 12.89           ~ 31 0
52 FRB 20220509G rB 18 50 40.800 +70 14 37.80           ~ 37 0
53 FRB 210807 rB 19 56 49.000 -00 48 51.40           ~ 27 0
54 FRB 20220207C rB 20 40 47.890 +72 52 56.38           ~ 29 0
55 FRB 20220825A rB 20 47 55.550 +72 35 05.89           ~ 25 0
56 FRB 20220506D rB 21 12 10.760 +72 49 38.20           ~ 24 0
57 FRB 190611 rB 21 22 58.91 -79 23 51.3           ~ 82 0
58 FRB 190102 rB 21 29 39.76 -79 28 32.5           ~ 83 0
59 FRB 20220208A rB 21 30 18.030 +70 02 27.75           ~ 15 0
60 FRB 191001 rB 21 33 24.373 -54 44 51.40           ~ 64 0
61 FRB 20210410D rB 21 44 20.70 -79 19 05.5           ~ 23 0
62 FRB 181112 rB 21 49 23.630 -52 58 15.39           ~ 131 0
63 FRB 20190711A rB 21 57 40.7 -80 21 29           ~ 114 0
64 FRB 171020 rB 22 15.0 -19 40           ~ 54 0
65 FRB 190608 rB 22 16 04.74 -07 53 53.6           ~ 102 0
66 FRB 20230814B rB 22 16 49.092 +71 31 54.04           ~ 5 0
67 FRB 20230814A rB 22 23 53.90 +73 01 33.3           ~ 8 0
68 FRB 20220831A rB 22 34.8 +70 32           ~ 12 0
69 FRB 20210117A rB 22 39 55.015 -16 09 05.45           ~ 49 0
70 FRB 20230501A rB 22 40 06.520 +70 55 19.82           ~ 14 0
71 FRB 20221101B rB 22 48 51.890 +70 40 52.20           ~ 18 0
72 FRB 191228 rB 22 57 43.30 -29 35 38.7           ~ 37 0
73 FRB 20230521B rB 23 18 42.840 +71 31 19.07           ~ 10 0
74 FRB 20220307B rB 23 23 29.880 +72 11 32.59           ~ 26 0
75 FRB 20220610A rB 23 24 17.569 -33 30 49.37           ~ 31 0
76 NAME Local Group GrG ~ ~           ~ 9325 0

To bookmark this query, right click on this link: simbad:objects in 2025NatAs...9.1226C and select 'bookmark this link' or equivalent in the popup menu