Molecular-Gas-Pressure-Induced Line-Shift and Line-Broadening in the ν2-Band of H2S

2002 ◽  
Vol 216 (2) ◽  
pp. 345-354 ◽  
Author(s):  
A Kissel ◽  
B Sumpf ◽  
H.-D Kronfeldt ◽  
B.A Tikhomirov ◽  
Yu.N Ponomarev
Keyword(s):  
Gas Pressure ◽  
Line Shift ◽  
Molecular Gas ◽  
Line Broadening

Experimental line broadening and line shift coefficients of the acetylene ν1+ν3 band pressurized by hydrogen and deuterium and comparison with calculations

2009 ◽  
Vol 256 (1) ◽  
pp. 17-27 ◽  
Author(s):  
F. Thibault ◽  
E.P. Fuller ◽  
K.A. Grabow ◽  
J.L. Hardwick ◽  
C.I. Marcus ◽  
...  
Keyword(s):  
Line Shift ◽  
Line Broadening ◽  
Experimental Line

Noble gas induced line-shift and line-broadening in the ν 2 band of H 2 S

2000 ◽  
Vol 517-518 ◽  
pp. 477-492 ◽  
Author(s):  
A. Kissel ◽  
B. Sumpf ◽  
H.-D. Kronfeldt ◽  
B.A. Tikhomirov ◽  
Yu.N. Ponomarev
Keyword(s):  
Noble Gas ◽  
Line Shift ◽  
Line Broadening

Electric Field Effect on NQR in Ferroelectric Materials

1996 ◽  
Vol 51 (5-6) ◽  
pp. 646-650 ◽  
Author(s):  
Jae Kap Jung ◽  
Hae Jin Kim ◽  
Kee Tae Han ◽  
Sung Ho Choh
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Field Effect ◽  
Ferroelectric Materials ◽  
Line Shift ◽  
Electric Field Effect ◽  
Ionic Crystals ◽  
Line Broadening ◽  
Nuclear Site ◽  
The Difference

Abstract The electric field effect on NQR in ferroelectric materials, 93Nb in LiNbO3 and 14N in NaNO2 and SC(NH2)2 , has been investigated at 77 K. In these crystals with single domain, only the line shift due to the external electric field was observed. In the case of NaNO2 powder and a crystal with multi-domains, line broadening was observed in the external electric field. These phenomena can be explained with the fact that the direction of spontaneous polarization in a domain is related to the direction of the applied electric field. The rate of the NQR line-shift due to the electric field is remarkably smaller in mostly ionic crystals, such as LiNbO3 and NaNO2 , than in a molecular crystal such as SC(NH2)2 . This is due to the strong ionic bonding in ionic crystals. Also, the difference of the Stark shift'between NaNO2 and SC(NH2)2 is discussed in terms of the local electric field and polarizability at the resonant nuclear site.

Line broadening and line shift of H2S absorption lines in the ν2 band — collisions with H2O and Ar in a three component mixture

2001 ◽  
Vol 69 (5) ◽  
pp. 573-583 ◽  
Author(s):  
A. Kissel ◽  
H.-D. Kronfeldt ◽  
B. Sumpf ◽  
Yu.N. Ponomarev ◽  
B.A. Tikhomirov
Keyword(s):  
Line Shift ◽  
Absorption Lines ◽  
Line Broadening ◽  
Component Mixture

scholarly journals A Self-Consistent Model Atmosphere Program with Applications to Solar 0I Resonance Lines

1970 ◽  
Vol 2 ◽  
pp. 65-84 ◽  
Author(s):  
R. Grant Athay ◽  
Richard C. Canfield
Keyword(s):  
Model Atmosphere ◽  
Gas Pressure ◽  
Line Broadening ◽  
Consistent Model ◽  
Self Consistent ◽  
Good Agreement

AbstractProfiles and total intensities are computed for solar 01 resonance lines at λ1302 and λ1305 using a model atmosphere program that includes non-LTE effects in both hydrogen and oxygen and that includes microturbulence both as a line broadening mechanism and as a contribution to the gas pressure. Good agreement is obtained between computed and observed intensities. The computed profiles appear to have too much 'self-reversal.

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