Suggested: Dimensionless, cm-2, cm-3
Exclude
Name/Symbol Condition
Name: neutral hydrogen
Mean: 22.8 ± 150
Median: 2.3
Range: -13 ‒ 1.5e+03
101 results.
arXiv Name Symbol Parsed Bound
astro-ph/9701202 🔍 (source) neutral hydrogen z _ { abs }
3.38716 ± 7e-05
astro-ph/9703102 🔍 (source) neutral hydrogen \lambda
21.1 cm
astro-ph/9707157 🔍 (source) neutral hydrogen column density of the absorption system \log N
19.81 ± 0.04 cm-2
astro-ph/9710100 🔍 (source) diffuse neutral hydrogen opacity \tau _ { GP }
0.3
astro-ph/9711143 🔍 (source) neutral hydrogen column density N _ { HI }
2000000000000.0 cm-2
astro-ph/9712267 🔍 (source) neutral hydrogen column density N _ { H }
7e+21 cm-2
astro-ph/9804018 🔍 (source) neutral hydrogen column density N _ { HI }
3.1e+17 ± 1e+17 cm-2
astro-ph/9805093 🔍 (source) neutral hydrogen column density N ( \ion H 1 )
1.5e+21 ± 2e+20
astro-ph/9903424 🔍 (source) column of neutral hydrogen
3.5e+23 cm-2
astro-ph/9905202 🔍 (source) neutral hydrogen column density N _ { H }
4.4000000000000007e+20 cm-2
astro-ph/9906374 🔍 (source) neutral hydrogen column density N _ { H }
2.5e-13 ± 3e-14 erg cm-2 s-1
astro-ph/9906374 🔍 (source) neutral hydrogen column density
5e+21 cm-2
astro-ph/9909164 🔍 (source) neutral hydrogen column densities N _ { HI }
2e+20
Lower
astro-ph/9909178 🔍 (source) neutral hydrogen column density
-1.3e+20 cm-2
Upper
astro-ph/9911261 🔍 (source) neutral hydrogen column density \log N _ { H \sc i }
15.7 cm-2
astro-ph/0004147 🔍 (source) Galactic neutral hydrogen column N _ { HI }
1.5e+20 cm-2
astro-ph/0007472 🔍 (source) neutral hydrogen column density N ( H i )
2.6e+21 cm-2
astro-ph/0009098 🔍 (source) neutral hydrogen column densities N _ { HI }
2e+20
Lower
astro-ph/0102437 🔍 (source) column density of neutral hydrogen decreased N ( H )
1.7e+23 cm-2
astro-ph/0103131 🔍 (source) column density of neutral hydrogen N _ { H }
1.1000000000000001e+18 ± 1e+18 cm-2
astro-ph/0106198 🔍 (source) neutral hydrogen density
2e-09 cm-3
astro-ph/0110065 🔍 (source) neutral Hydrogen number density n _ { H ^ { 0 } }
3.0 cm-3
astro-ph/0110065 🔍 (source) ambient neutral Hydrogen number density n _ { H ^ { 0 } }
0.8 cm-3
astro-ph/0111346 🔍 (source) neutral hydrogen fraction at mean density
0.00047000000000000004
Upper
astro-ph/0202036 🔍 (source) neutral hydrogen column density \log N ( H i )
20.7
astro-ph/0204159 🔍 (source) interstellar medium neutral hydrogen column density N _ { H }
8e+19
Lower
astro-ph/0208450 🔍 (source) neutral hydrogen column density N ( HI )
6.9e+20 ± 1.7e+20
astro-ph/0208530 🔍 (source) neutral Hydrogen column density
2.06e+21 +3.9e+20-4.5e+20 cm-2
astro-ph/0302006 🔍 (source) neutral Hydrogen column density log N _ { HI }
19.73 ± 0.04 cm-2
astro-ph/0304014 🔍 (source) neutral hydrogen column density N ( H i )
44000000000000.0 cm-2
astro-ph/0307331 🔍 (source) column density of neutral hydrogen \log ( N _ { HI } )
21.7 ± 0.2
astro-ph/0307506 🔍 (source) neutral hydrogen optical depths \tau _ { HI }
1.0
Lower
astro-ph/0307516 🔍 (source) mean neutral hydrogen column density N _ { HI }
3.6e+20 ± 1.3e+20
astro-ph/0311567 🔍 (source) neutral hydrogen optical depth N _ { HI }
2e+21 cm-2
astro-ph/0403080 🔍 (source) neutral hydrogen column density log N ( H i )
21.9
astro-ph/0404609 🔍 (source) neutral hydrogen column densities N _ { HI }
2.6e+21 ± 2e+20
astro-ph/0404609 🔍 (source) neutral hydrogen column densities
1.45e+21 ± 1.5e+20
astro-ph/0407157 🔍 (source) neutral hydrogen column density N _ { \scriptsize H }
3.7e+21 cm-2
astro-ph/0408007 🔍 (source) excess neutral hydrogen column density N _ { H }
1.57e+21 ± 3e+19 cm-2
astro-ph/0412483 🔍 (source) atomic neutral hydrogen N _ { H }
8.5e+20 cm-2
Upper
astro-ph/0508062 🔍 (source) neutral hydrogen masses
-900000.0 M_\odot
Upper
astro-ph/0510404 🔍 (source) neutral hydrogen column density log N ( H i )
20.4 ± 0.2
astro-ph/0510835 🔍 (source) total flux of neutral hydrogen atoms
0.0023 M_\odot yr-1
astro-ph/0511498 🔍 (source) neutral hydrogen column density log N ( HI )
22.05 ± 0.1
astro-ph/0602121 🔍 (source) total neutral hydrogen column density log N ( H i )
20.36 ± 0.05
astro-ph/0608040 🔍 (source) neutral hydrogen column density N
1.6e+21 cm-2
Lower
astro-ph/0608067 🔍 (source) spin temperature of neutral hydrogen
21.0 cm
0708.3018 🔍 (source) neutral hydrogen column density log N _ { H I }
19.82 ± 0.05
0710.1303 🔍 (source) mean neutral hydrogen fraction x _ { HI }
6.400000000000001e-05 ± 3e-06
0711.0773 🔍 (source) neutral hydrogen fraction
-4.0
Upper
0712.0538 🔍 (source) neutral hydrogen fraction
0.1017
0801.3682 🔍 (source) neutral hydrogen column density \log f
-4.5
Lower
0801.4674 🔍 (source) mean neutral hydrogen fraction x _ { HI }
6.400000000000001e-05 ± 3e-06
0805.3108 🔍 (source) neutral Hydrogen column density
6.4e+21 +1.3e+21-1.4000000000000003e+21 cm-2
0805.3108 🔍 (source) neutral Hydrogen column density
2.5e+21 +2.3e+21-1.8e+21 cm-2
0909.2959 🔍 (source) neutral hydrogen column density N ( HI )
1.53e+21 cm-2
0911.4233 🔍 (source) neutral hydrogen column density
4e+21 cm-2
0911.4233 🔍 (source) neutral hydrogen column density
2e+21 cm-2
1002.0839 🔍 (source) IGM average neutral hydrogen fraction \langle
0.0034
Lower
1003.4622 🔍 (source) column density of neutral hydrogen
5.2e+17 cm-2
1008.0637 🔍 (source) neutral hydrogen column density \log N ( H ^ { 0 } ) ( cm ^ { -2 } )
20.0 ± 0.15
1011.2951 🔍 (source) column density of neutral hydrogen
0.82
1102.1726 🔍 (source) intergalactic neutral hydrogen fraction \chi _ { HI }
0.2
Upper
1103.0009 🔍 (source) emission of neutral hydrogen \lambda
215.67
1103.0009 🔍 (source) emission of neutral hydrogen
1.0
1107.1376 🔍 (source) neutral hydrogen fraction of the order \Delta \chi _ { HI }
0.6
1107.5721 🔍 (source) neutral hydrogen fraction \chi _ { HI }
0.4
1203.1032 🔍 (source) neutral Hydrogen gas density
1500.0 ± 500.0 cm-3
1204.1978 🔍 (source) neutral hydrogen abundance \Omega
0.00015000000000000001
1204.5475 🔍 (source) excess neutral Hydrogen column density
7.5e+21 ± 2e+21 cm-2
1211.3452 🔍 (source) atomic neutral hydrogen column density N _ { HI }
2e+21 cm-2
Lower
1305.1945 🔍 (source) neutral hydrogen column density N _ { H }
1.4e+23 cm-2
1306.0181 🔍 (source) neutral hydrogen column density N _ { HI }
2e+20 cm-2
Lower
1309.2940 🔍 (source) neutral hydrogen column density \log N ( H i ) / cm ^ { -2 }
22.3 ± 0.06
1310.8569 🔍 (source) total neutral hydrogen column density \log N ( H i ) ( cm ^ { -2 } )
21.03 ± 0.08
1312.0010 🔍 (source) neutral hydrogen column density N _ { H }
9e+21 cm-2
1405.7400 🔍 (source) constant neutral hydrogen fraction \bar { x } _ { HI }
0.056 +0.011-0.027
1409.0855 🔍 (source) neutral hydrogen fraction x _ { H I }
0.5
1409.8131 🔍 (source) total neutral hydrogen column density \log N ( H i )
19.48 ± 0.01
1501.06305 🔍 (source) ratio of neutral hydrogen mass to V luminosity M _ { HI } / L _ { V }
20.0
Lower
1602.05458 🔍 (source) neutral hydrogen column density \log N ( H \sc i )
19.23
1608.01087 🔍 (source) neutral hydrogen mass
1.0 ± 0.3 M_\odot
1608.01374 🔍 (source) neutral hydrogen column density
5e+21 ± 3e+21
1610.08177 🔍 (source) neutral Hydrogen fraction x _ { H \sc I }
0.5
Lower
1612.08962 🔍 (source) neutral hydrogen escape rate
3100000000.0 g s-1
1612.08962 🔍 (source) neutral hydrogen escape rate
1600000000.0 g s-1
1704.07455 🔍 (source) neutral hydrogen fraction x _ { HI }
0.15 ± 0.15
1705.01222 🔍 (source) neutral hydrogen fraction of the IGM x _ { HI }
0.3 ± 0.2
1710.03315 🔍 (source) neutral hydrogen column densities log N _ { H I } ( cm ^ { -2 } )
20.1 ± 0.15
1710.03315 🔍 (source) neutral hydrogen column densities log N _ { H I } ( cm ^ { -2 } )
20.8 ± 0.15
1710.03315 🔍 (source) neutral hydrogen column densities log N _ { H I } ( cm ^ { -2 } )
20.1 ± 0.15
1710.08563 🔍 (source) neutral hydrogen column densities N _ { H I }
1.3e+18 cm-2
1805.02236 🔍 (source) neutral hydrogen fraction
9.75
1807.01593 🔍 (source) neutral hydrogen fraction \bar { x } _ { H I }
0.21
1809.08305 🔍 (source) intervening column density of neutral hydrogen N _ { H }
2e+21 +5e+20-1e+21 cm-2
1901.11045 🔍 (source) average IGM neutral hydrogen fraction
0.76
Lower
1901.11045 🔍 (source) average IGM neutral hydrogen fraction
0.46
Lower
1903.09046 🔍 (source) average neutral hydrogen fraction x _ { HI }
0.30000000000000004 +0.09999999999999998-0.10000000000000003
1907.03425 🔍 (source) interstellar neutral hydrogen density
0.12 cm-3
1909.03364 🔍 (source) mean mass flow rate of the neutral hydrogen
-0.25 ± 0.11 M_\odot yr-1
2004.10877 🔍 (source) volume-averaged neutral hydrogen fraction \langle x _ { HI } \rangle
0.7 +0.2-0.23 (^ +0.28 _ -0.48)