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Li Kejun. A Discussion of the Formula in the Calculation of the Column Density at Second Level of Hydrogen Atoms[J]. Astronomical Techniques and Instruments, 1991, (2): 19-23.
Citation: Li Kejun. A Discussion of the Formula in the Calculation of the Column Density at Second Level of Hydrogen Atoms[J]. Astronomical Techniques and Instruments, 1991, (2): 19-23.
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A Discussion of the Formula in the Calculation of the Column Density at Second Level of Hydrogen Atoms

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  • A discussion of the formula in the analyses of solar spectea is made in this paper. And a more accurate formula derived is also given.
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