scholarly journals The Role of Occupation Probability in Hydrogen Line Profile Spectra.

2020 ◽  
Author(s):  
Michael Montgomery
Keyword(s):  
Line Profile ◽  
Occupation Probability ◽  
Hydrogen Line

Role of Spectral Line Profile in Laser IR Analysis of Multicomponent Gas Mixtures

2019 ◽  
Vol 13 (5) ◽  
pp. 727-738
Author(s):  
Sh. Sh. Nabiev ◽  
S. V. Ivanov ◽  
A. S. Lagutin ◽  
L. A. Palkina ◽  
S. V. Malashevich ◽  
...  
Keyword(s):  
Spectral Line ◽  
Line Profile ◽  
Gas Mixtures ◽  
Multicomponent Gas ◽  
Spectral Line Profile ◽  
Ir Analysis

The role of dislocations in γ-iPP under plastic deformation investigated by X-ray line profile analysis

2013 ◽  
Vol 67 ◽  
pp. 126-132 ◽  
Author(s):  
G. Polt ◽  
F. Spieckermann ◽  
H. Wilhelm ◽  
M.B. Kerber ◽  
E. Schafler ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Line Profile ◽  
Profile Analysis ◽  
Line Profile Analysis ◽  
X Ray

The role of dislocations for the plastic deformation of semicrystalline polymers as investigated by multireflection X-ray line profile analysis

2012 ◽  
Vol 125 (6) ◽  
pp. 4150-4154 ◽  
Author(s):  
Florian Spieckermann ◽  
Gerald Polt ◽  
Harald Wilhelm ◽  
Michael Kerber ◽  
Erhard Schafler ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Line Profile ◽  
Profile Analysis ◽  
Semicrystalline Polymers ◽  
Line Profile Analysis ◽  
X Ray

Role of noise in the diode-laser spectroscopy of the spectral line profile

2000 ◽  
Vol 30 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Aleksandr I Nadezhdinskii ◽  
V V Plotnichenko ◽  
Ya Ya Ponurovskii ◽  
Maksim V Spiridonov
Keyword(s):  
Spectral Line ◽  
Diode Laser ◽  
Laser Spectroscopy ◽  
Line Profile ◽  
Diode Laser Spectroscopy ◽  
Spectral Line Profile

scholarly journals Equilibrium Abundances of Heavy Elements Supported by Radiative Levitation in the Atmospheres of Hot DA White Dwarfs

1996 ◽  
Vol 152 ◽  
pp. 211-215
Author(s):  
P. Chayer ◽  
S. Vennes ◽  
A.K. Pradhan ◽  
P. Thejll ◽  
A. Beauchamp ◽  
...  
Keyword(s):  
Line Profile ◽  
White Dwarfs ◽  
Heavy Elements ◽  
Background Plasma ◽  
Pressure Broadening ◽  
Opaque Material ◽  
Trace Pollutants ◽  
Flux Redistribution

We present revised estimates of the equilibrium abundances of heavy elements supported by radiative levitation in the atmospheres of hot DA white dwarfs. We emphasize, in particular, the role of trace pollutants that may be present in the background plasma, an effect which has been heretofore neglected. We take advantage of the availability of a table of detailed monochromatic opacities calculated for a plasma made of H containing small amounts of C, N, O, and Fe to illustrate how the equilibrium abundances of levitating elements react to the flux redistribution caused by the addition of these small traces of opaque material. We also consider two other improvements: a more sophisticated treatment of the momentum redistribution process and ion experiences following a photoexcitation, and use of an upgraded value for the line profile width associated with pressure broadening.

scholarly journals Spectroscopy of Rapidly Oscillating Ap Stars

2002 ◽  
Vol 185 ◽  
pp. 280-283
Author(s):  
W.W. Weiss ◽  
T.A. Ryabchikova ◽  
I. Savanov ◽  
N. Piskunov ◽  
V. Tsymbal ◽  
...  
Keyword(s):  
Line Profile ◽  
Observational Evidence ◽  
Spectral Lines ◽  
Hydrogen Line ◽  
Abundance Pattern ◽  
Ap Stars

AbstractWe identify Spectroscopic differences between roAp stars and Ap stars with no observational evidence for pulsation, but with otherwise similar Teff and log g values. These differences concern the abundance pattern, Hydrogen line profile anomalies, evidence for stratification, and effects of pulsation on spectral lines.

The Role of Hydrogen Molecular Lines in the Vicinity of Hβ

1979 ◽  
Vol 34 (4) ◽  
pp. 516-518 ◽  
Author(s):  
A. Piel ◽  
H. Richter
Keyword(s):  
Temporal Resolution ◽  
Line Profile ◽  
Low Pressure ◽  
Multichannel Analyzer ◽  
Molecular Lines ◽  
Thermal Line

The profile of Hβ emitted by a low pressure afterglow discharge (p0 = 500 Pa, ne = 1· 1015 cm-3) is measured with 1/μs temporal resolution on a 500-channel optical multichannel analyzer (1 channel = 0.09 Å). Several structures appearing superimposed on thermal line profile can be identified as hydrogen molecular lines. These results affect earlier observations under very similar conditions which have been interpreted in terms of plasma satellites

The role of the line profile in radiative transfer in expanding plasmas

1994 ◽  
Vol 51 (4) ◽  
pp. 645-654
Author(s):  
Malcolm T.M. Lightbody ◽  
Geoff J. Pert
Keyword(s):  
Radiative Transfer ◽  
Line Profile
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