Results 301 to 310 of about 1,274,676 (322)
, 2012 This chapter gives a review of spectral line formation processes, starting with the main equations valid in thermodynamic equilibrium. The Einstein coefficients and the main spectral line profile functions are discussed.
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Nature, 1973
Radiation Transport in Spectral Lines. By G. Athay. Pp. xiii + 263. (D. Reidel: Dordrecht, 1972.) 41 florins.
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Radiation Transport in Spectral Lines. By G. Athay. Pp. xiii + 263. (D. Reidel: Dordrecht, 1972.) 41 florins.
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1975
It is theoretically possible using the equations and data in Chapter III to predict the most sensitive transitions for each element. It is unfortunate that much of the information required for this theoretical exercise is woefully lacking in accuracy, (See Table III.B.1 for instance)thus rendering the theoretical prediction of analysis lines of ...
G. E. Bentley +2 more
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It is theoretically possible using the equations and data in Chapter III to predict the most sensitive transitions for each element. It is unfortunate that much of the information required for this theoretical exercise is woefully lacking in accuracy, (See Table III.B.1 for instance)thus rendering the theoretical prediction of analysis lines of ...
G. E. Bentley +2 more
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Widths and Profiles of Spectral Lines
1981Spectral lines in discrete absorption or emission spectra are never strictly monochromatic. Even with the very high resolution of interferometers one observes a spectral distribution I(v) of the absorbed or emitted intensity around the central frequency v 0 = (Ei-Ek)/h corresponding to a molecular transition with the energy difference ΔE = Ei-Ek ...
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Newton and Spectral Lines [PDF]
Science, 1962 William J. Bisson, William H. Dennen
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Contemporary Physics, 1975
Abstract A spectral line emitted by an atom or molecule (throughout the article, spectral lines seen in emission ere described; however, the theory applies equally well to the absorption of radiation in plasmas) has a finite width and there are three distinct physical processes which contribute to this broadening.
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Abstract A spectral line emitted by an atom or molecule (throughout the article, spectral lines seen in emission ere described; however, the theory applies equally well to the absorption of radiation in plasmas) has a finite width and there are three distinct physical processes which contribute to this broadening.
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Spectral Problems on the Line [PDF]
, 1999 For canonical systems of differential equations spectral problems on the line (-∞, +∞) can be reduced to problems on the half-line (0, ∞). As in the classical case of the Sturm-Liouville equation, such a reduction is performed by doubling the dimension of the system.
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1989
In this Lecture the techniques of spectral line VLBI are discussed. Spectral line interferometry is the generalized extension of continuum VLBI and as such many of the techniques used are common to both continuum and line analysis; but there are some important differences which is the subject of this lecture.
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In this Lecture the techniques of spectral line VLBI are discussed. Spectral line interferometry is the generalized extension of continuum VLBI and as such many of the techniques used are common to both continuum and line analysis; but there are some important differences which is the subject of this lecture.
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