Equivalent widths of hydrogen Lyman alpha line in an expanding spherical atmosphere |
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| Authors: | A. Peraiah M. F. Ingalgi |
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| Affiliation: | (1) Indian Institute of Astrophysics, 560034 Bangalore |
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| Abstract: | We have calculated the profiles of hydrogen Lyman a line in an expanding spherical atmosphere containing dust and gas. We have investigated the variation of equivalent widths with velocities of expansion of the atmosphere, together with the amount of dust present in the medium. We have drawn curves of growth for different velocities and dust optical depths |
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| Keywords: | radiative transfer Lyman α line expanding atmospheres circumstellar dust |
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