scholarly journals A spectroscopic study of hydrogen atom and molecule collision. Final report

2002 ◽  
Author(s):  
John F. Kielkopf
Keyword(s):  
Hydrogen Atom ◽  
Spectroscopic Study ◽  
Final Report

An Infra-red spectroscopic study of naphthalene substitution

1955 ◽  
Vol 8 (3) ◽  
pp. 346 ◽  
Author(s):  
RL Werner ◽  
W Kennard ◽  
D Rayson
Keyword(s):  
Hydrogen Atom ◽  
Spectroscopic Study ◽  
Spectroscopic Data ◽  
Hydrogen Atoms ◽  
Naphthalene Derivatives ◽  
Bending Vibrations ◽  
Position Variable ◽  
Infra Red

Infra-red spectroscopic data on a number of mono- and disubstituted naphthalene derivatives have been obtained in the range 670-900 cm-l, in order to test the validity of the substitution rules based upon the hydrogen bending vibrations in this region and the number of adjacent hydrogen atoms in the molecules. It was found that the rules based on benzene substitution are generally valid for groups of two, three, or four hydrogen atoms in the naphthalene nucleus, although substituents which interact with the ring tend to widen the limits within which a band may be expected to fall. In the case of a single hydrogen atom the relevant bands are often weaker and their position variable.

Some Results of the Spectroscopic Study of Four Close Binary Systems of Early Spectral Types

1965 ◽  
Vol 5 ◽  
pp. 120-130
Author(s):  
T. S. Galkina
Keyword(s):  
Spectroscopic Study ◽  
Spectral Type ◽  
Spectroscopic Investigation ◽  
Binary Systems ◽  
Quantitative Information ◽  
Close Binary ◽  
Physical Parameters ◽  
Absorption And Emission ◽  
Close Binary Systems ◽  
Quantitative Estimates

It is necessary to have quantitative estimates of the intensity of lines (both absorption and emission) to obtain the physical parameters of the atmosphere of components.Some years ago at the Crimean observatory we began the spectroscopic investigation of close binary systems of the early spectral type with components WR, Of, O, B to try and obtain more quantitative information from the study of the spectra of the components.

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