Nuclear-spin waves in polarized atomic hydrogen gas: Temperature and density dependence in the hydrodynamic and Knudsen regimes

1989 ◽  
Vol 63 (15) ◽  
pp. 1609-1612 ◽  
Author(s):  
N. P. Bigelow ◽  
J. H. Freed ◽  
D. M. Lee
Keyword(s):  
Density Dependence ◽  
Nuclear Spin ◽  
Atomic Hydrogen ◽  
Spin Waves ◽  
Hydrogen Gas ◽  
Gas Temperature

Observation of Nuclear Spin Waves in Spin-Polarized Atomic Hydrogen Gas

1984 ◽  
Vol 52 (17) ◽  
pp. 1508-1511 ◽  
Author(s):  
B. R. Johnson ◽  
J. S. Denker ◽  
N. Bigelow ◽  
L. P. Lévy ◽  
J. H. Freed ◽  
...  
Keyword(s):  
Nuclear Spin ◽  
Atomic Hydrogen ◽  
Spin Waves ◽  
Hydrogen Gas ◽  
Spin Polarized

Observation of Nuclear Spin Waves in Spin-Polarized Atomic Hydrogen Gas

1984 ◽  
Vol 53 (3) ◽  
pp. 302-302 ◽  
Author(s):  
B. R. Johnson ◽  
J. S. Denker ◽  
N. Bigelow ◽  
L. P. Lévy ◽  
J. H. Freed ◽  
...  
Keyword(s):  
Nuclear Spin ◽  
Atomic Hydrogen ◽  
Spin Waves ◽  
Hydrogen Gas ◽  
Spin Polarized

scholarly journals Guiding and Trapping of Electron Spin Waves in Atomic Hydrogen Gas

2012 ◽  
Vol 108 (18) ◽  
Author(s):  
O. Vainio ◽  
J. Ahokas ◽  
S. Novotny ◽  
S. Sheludyakov ◽  
D. Zvezdov ◽  
...  
Keyword(s):  
Electron Spin ◽  
Atomic Hydrogen ◽  
Spin Waves ◽  
Hydrogen Gas

Longitudinal electronic and nuclear spin diffusion in atomic hydrogen

1985 ◽  
Vol 46 (8) ◽  
pp. 1335-1344 ◽  
Author(s):  
J.P. Bouchaud ◽  
C. Lhuillier
Keyword(s):  
Nuclear Spin ◽  
Atomic Hydrogen ◽  
Spin Diffusion

scholarly journals Atomic Hydrogen Gas Images of QSO Host Galaxies

2002 ◽  
Vol 199 ◽  
pp. 122-126
Author(s):  
J. Lim ◽  
P.T.P. Ho
Keyword(s):  
Atomic Hydrogen ◽  
Hydrogen Gas ◽  
Significant Fraction ◽  
Host Galaxies ◽  
Infrared Galaxies ◽  
Parent Population ◽  
Tidal Interactions ◽  
Ultraluminous Infrared Galaxies

We present the first neutral atomic hydrogen (HI) gas images of QSO host galaxies. The results come from our ongoing survey of all twenty-three QSOs at redshifts z < 0.07 visible from the VLA. Our images show tidal interactions in all of the QSO host galaxies detected in HI, even when no such interactions are clearly visible in the optical. The results are not consistent with the suggestion by Sanders et al. (1988a, 1988b) that ultraluminous infrared galaxies, the vast majority of which are later-stage mergers, are the parent population of a significant fraction of radio-quiet QSOs. Instead, our results suggest that QSOs reside in a wide variety of interacting environments.

Cryogenic 2 mm wave electron spin resonance spectrometer with application to atomic hydrogen gas below 100 mK

2004 ◽  
Vol 75 (1) ◽  
pp. 94-98 ◽  
Author(s):  
Sergei Vasilyev ◽  
Jarno Järvinen ◽  
Esa Tjukanoff ◽  
Alexander Kharitonov ◽  
Simo Jaakkola
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Atomic Hydrogen ◽  
Hydrogen Gas ◽  
Spin Resonance ◽  
Electron Spin Resonance Spectrometer

Three-body recombination in two-dimensional atomic hydrogen gas

2005 ◽  
Vol 72 (5) ◽  
Author(s):  
J. Järvinen ◽  
J. Ahokas ◽  
S. Jaakkola ◽  
S. Vasilyev
Keyword(s):  
Atomic Hydrogen ◽  
Hydrogen Gas ◽  
Two Dimensional ◽  
Three Body ◽  
Body Recombination

scholarly journals The SFR Efficiency of HI Gas in the Outskirts of Star Forming Galaxies

2016 ◽  
Vol 11 (S321) ◽  
pp. 360-362
Author(s):  
Marc Rafelski
Keyword(s):  
Star Formation ◽  
Atomic Hydrogen ◽  
Rest Frame ◽  
Star Formation Rate ◽  
Formation Rate ◽  
Hydrogen Gas ◽  
Star Forming ◽  
Uv Emission ◽  
Atomic Gas

AbstractIn order to understand the origin of the decreased star formation rate (SFR) efficiency of neutral atomic hydrogen gas measured in Damped Lyα Systems (DLAs) at z ~ 3, we measure the SFR efficiency of atomic gas at z ~ 1, z ~ 2, and z ~ 3 around star-forming galaxies. We create galaxy stacks in these three redshift bins, and measure the SFR efficiency by combining DLA absorber statistics with the observed rest-frame UV emission in the galaxies’ outskirts. We find that the SFR efficiency of Hi gas is ~ 3% of that predicted by the KS relation. We find no significant evolution in the SFR efficiency with redshift, although simulations and models predict a decreasing SFR efficiency with decreasing metallicity and thus with increasing redshift. We discuss possible explanations for this decreased efficiency without an evolution with redshift.

‘‘Helium jet’’ accommodator for the thermalization of atomic hydrogen gas

1992 ◽  
Vol 63 (4) ◽  
pp. 2220-2222 ◽  
Author(s):  
M. Mertig ◽  
A. V. Levkovitch ◽  
V. G. Luppov ◽  
Yu. K. Pilipenko
Keyword(s):  
Atomic Hydrogen ◽  
Hydrogen Gas ◽  
Helium Jet
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