2020A&A...644L...6K

Query : 2020A&A...644L...6K

2020A&A...644L...6K - Astronomy and Astrophysics, volume 644L6-6 (2020/12-1)

Modeling the statistics of the cold neutral medium in absorption-selected high-redshift galaxies.

KROGAGER J.-K. and NOTERDAEME P.

Abstract (from CDS):

We present a statistical model of the selection function of cold neutral gas in high-redshift (z=2.5) absorption systems. The model is based on the canonical two-phase model of the neutral gas in the interstellar medium and contains only one parameter for which we do not have direct observational priors: namely the central pressure of an L* halo at z=2.5, P*. Using observations of the fraction of cold gas absorption in strong HI-selected absorbers, we were able to constrain P*. The model simultaneously reproduces the column density distributions of HI and H2, and we derived an expected total incidence of cold gas at z∼2.5 of lCNM=12x10–3. Compared to recent measurements of the incidence of CI-selected absorbers (EWλ1560>0.4Å), the value of lCNM from our model indicates that only 15% of the total cold gas would lead to strong CI absorption (EW>0.4Å). Nevertheless, CI lines are extremely useful probes of the cold gas as they are relatively easy to detect and provide direct constraints on the physical conditions. Lastly, our model self-consistently reproduces the fraction of cold gas absorbers as a function of NHI.

Abstract Copyright: © J.-K. Krogager and P. Noterdaeme 2020

Journal keyword(s): galaxies: high-redshift - galaxies: ISM - quasars: absorption lines

Simbad objects: 66

goto Full paper

goto View the references in ADS

Number of rows : 66
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 SDSS J000015.17+004833.2 QSO 00 00 15.1760866776 +00 48 33.306387012           ~ 29 0
2 LBQS 0013-0029 QSO 00 16 02.4050159808 -00 12 25.077257064   18.67 18.36     ~ 198 0
3 QSO B0027-1836 QSO 00 30 23.6259434280 -18 19 56.117225244   18.2 17.9     ~ 56 0
4 SDSS J013644.02+044039.0 QSO 01 36 44.0194613256 +04 40 39.109620504           ~ 15 0
5 QSO B0201+113 Bla 02 03 46.65705710 +11 34 45.4094619   19.5 19.5 19.41   ~ 216 1
6 [VV2006] J021606.2-002104 QSO 02 16 06.1301494488 -00 21 04.971818880   19.05 18.78     ~ 42 0
7 QSO B0347-383 QSO 03 49 43.6603590912 -38 10 30.825444900     17.3     ~ 196 0
8 QSO J0407-4410 QSO 04 07 18.0880236912 -44 10 13.983623724   17.6 17.6     ~ 103 1
9 QSO B0551-36 QSO 05 52 46.1824785360 -36 37 27.608212524   17.72 17.57     ~ 98 0
10 QSO B0642-5038 QSO 06 43 27.0080170248 -50 41 12.811001244     18.5     ~ 47 0
11 SDSS J081116.06+083837.6 QSO 08 11 16.0641407832 +08 38 37.698376956   19.34 18.97     ~ 15 0
12 QSO J0812+32 QSO 08 12 40.6859242632 +32 08 08.579336496   18.16 17.75     ~ 106 0
13 [VV2006] J081540.6+264021 QSO 08 15 40.6028409144 +26 40 21.624171708   20.18 19.98     ~ 29 0
14 SDSS J081634.38+144612.4 QSO 08 16 34.3904979384 +14 46 12.491066712   21.91 20.39     ~ 46 0
15 SDSS J084312.72+022117.2 QSO 08 43 12.7165734816 +02 21 17.341452360           ~ 24 0
16 SDSS J085206.65+193548.3 QSO 08 52 06.6526075248 +19 35 48.445357164   19.49 19.18     ~ 19 0
17 [VV2006] J085437.6+031734 QSO 08 54 37.5957379008 +03 17 34.824893316   19.43 19.06     ~ 31 0
18 LB 8956 QSO 08 57 26.7924604680 +18 55 24.304474488   17.40 17.48     ~ 76 1
19 SDSS J085859.66+174925.1 QSO 08 58 59.6647623648 +17 49 25.177561392           ~ 12 0
20 SDSS J090609.45+054818.7 QSO 09 06 09.4577833464 +05 48 18.767115360           ~ 11 0
21 [VV2006] J091721.4+015448 QSO 09 17 21.3681034992 +01 54 48.121717392   20.91 20.43     ~ 32 0
22 QSO J0918+1636 QSO 09 18 26.1655113600 +16 36 09.045201564   21.19 20.58     ~ 53 0
23 2MASS J09275978+1543217 QSO 09 27 59.7856188696 +15 43 21.835903620   19.64 19.29     ~ 25 0
24 SDSS J094649.47+121628.4 QSO 09 46 49.4736287328 +12 16 28.460820144           ~ 10 0
25 QSO J1039-2719 QSO 10 39 21.8517992640 -27 19 16.435341732     17.4     ~ 92 0
26 SDSS J104705.75+205734.5 QSO 10 47 05.7587846712 +20 57 34.514704368   20.26 19.92     ~ 23 0
27 SDSS J111756.52+143716.9 QSO 11 17 56.5245669768 +14 37 16.848885180   19.54 19.28     ~ 23 0
28 A1 9 QSO 11 22 50.9526840720 +14 37 32.471108976   17.91 17.71     ~ 30 0
29 [VV2006] J113341.2-005740 QSO 11 33 41.2895296824 -00 57 40.020957180   20.48 19.83     ~ 27 0
30 SDSS J114347.21+142021.6 QSO 11 43 47.2100460024 +14 20 21.612180156           ~ 12 0
31 SDSS J114638.95+074311.2 QSO 11 46 38.9522084352 +07 43 11.280833832           ~ 11 0
32 LBQS 1232+0815 QSO 12 34 37.5514444464 +07 58 43.367750796     18.4     ~ 128 0
33 SDSS J123602.11+001024.6 QSO 12 36 02.1182718312 +00 10 24.549544740           ~ 17 0
34 SDSS J123714.60+064759.5 QSO 12 37 14.6105371632 +06 47 59.612187624   19.66 19.15     ~ 63 0
35 SDSS J124829.71+284858.1 QSO 12 48 29.7071888232 +28 48 58.164766596   19.32 19.11     ~ 19 0
36 SDSS J130225.28+211158.6 QSO 13 02 25.2809252040 +21 11 58.603609716   19.70 19.46     ~ 16 0
37 SDSS J130628.86+281550.7 QSO 13 06 28.8694429920 +28 15 50.809507056   20.02 19.61     ~ 20 0
38 SDSS J131129.10+222552.5 QSO 13 11 29.1083707728 +22 25 52.585583628   20.62 20.03     ~ 20 0
39 [VV2006] J131400.5+054319 QSO 13 14 00.5632169136 +05 43 19.510293288   19.25 19.00     ~ 27 0
40 QSO B1331+170 Bla 13 33 35.7827544072 +16 49 04.013500728   16.84 16.71 16.41   ~ 469 1
41 QSO J1337+3152 QSO 13 37 24.6964232832 +31 52 54.575696928   19.40 19.01     ~ 58 1
42 QSO J1439+1117 BLL 14 39 12.0427245720 +11 17 40.563764052   19.27 18.92     ~ 77 1
43 QSO J1443+2724 QSO 14 43 31.1697928632 +27 24 36.768781008     19.3     ~ 94 0
44 LBQS 1444+0126 QSO 14 46 53.0501441856 +01 13 55.924449276   18.71 18.38     ~ 75 0
45 SDSS J145646.48+160939.3 QSO 14 56 46.4832762504 +16 09 39.365377812   20.89 20.04     ~ 20 0
46 [VV2006] J151349.5+035211 QSO 15 13 49.5187990104 +03 52 11.713951128   21.51 20.98     ~ 31 0
47 SDSS J161526.64+264813.7 QSO 16 15 26.6441509728 +26 48 13.750705584   19.47 19.15     ~ 21 0
48 SDSS J162321.42+135532.4 QSO 16 23 21.4273269024 +13 55 32.431521036   19.66 19.44     ~ 18 0
49 [VV2006] J164610.2+232922 QSO 16 46 10.1998076616 +23 29 22.960994640   19.03 18.76     ~ 23 0
50 [VV2006] J170542.9+354340 QSO 17 05 42.9132165552 +35 43 40.327034880   19.44 19.12     ~ 42 0
51 QSO J2100-0641 QSO 21 00 25.0301694552 -06 41 45.968177220   19.02 18.54     ~ 60 0
52 SDSS J212329.46-005052.9 QSO 21 23 29.4639412848 -00 50 52.916363736   16.91 16.62     ~ 131 0
53 SDSS J214043.02-032139.2 QSO 21 40 43.0124617776 -03 21 39.253768020           ~ 24 0
54 4C 05.84 BLL 22 25 14.7002359128 +05 27 09.063249840     18.52     ~ 75 1
55 SDSS J222910.16+141402.1 QSO 22 29 10.1635239960 +14 14 02.200585668   19.29 19.06     ~ 26 0
56 SDSS J223250.97+124225.2 QSO 22 32 50.9797006728 +12 42 25.295955228           ~ 13 0
57 LBQS 2230-0015 QSO 22 34 08.9971751592 +00 00 01.703853180   18.09 17.39 17.3   ~ 142 0
58 PB 7386 QSO 22 57 19.0482441000 -10 01 04.675906056   18.85 18.57     ~ 29 0
59 QSO B2318-1107 QSO 23 21 28.6902031608 -10 51 22.515901344           ~ 21 0
60 [VV2006] J233156.5-090802 BLL 23 31 56.4745878552 -09 08 02.111518968   20.07 19.56     ~ 25 0
61 QSO B2332-094 QSO 23 34 46.4045250120 -09 08 12.250650732   19.21 18.62 18.07   ~ 89 1
62 [VV2006] J233633.8-105841 QSO 23 36 33.8129124888 -10 58 41.584520460   19.30 19.01     ~ 25 0
63 QSO J2340-0053 QSO 23 40 23.6700032496 -00 53 27.001299696   18.26 17.93     ~ 109 1
64 QSO B2343+125 QSO 23 46 28.200 +12 49 00.00     17.5     ~ 143 2
65 SDSS J234730.76-005131.5 QSO 23 47 30.7646955384 -00 51 31.590454572       20.1   ~ 18 0
66 QSO B2348-0108 QSO 23 50 57.8771296800 -00 52 09.886281492   19.23 18.77 18.7   ~ 152 0

To bookmark this query, right click on this link: simbad:objects in 2020A&A...644L...6K and select 'bookmark this link' or equivalent in the popup menu