Theoretical study of partial frequency redistribution function in irradiated, moving atmospheres of close binary components |
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Authors: | M Srinivasa Rao |
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Institution: | Indian Institute of Astrophysics, Bangalore 560034, India |
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Abstract: | We have studied the effects of partial frequency redistribution function with angle-averaged R II-A in irradiated and moving atmospheres of close binary components. We have considered the atmospheric extension of the primary component to be twice the radius of the primary component in a close binary system. We have considered two cases: (i) when the atmosphere is at rest and (ii) when the atmosphere is moving. In both the cases, we have computed the line profiles along the line of sight for a given optical depth. The irradiation from the secondary component is assumed to be one, five and 10 times the self-radiation. The line fluxes in the line of sight are calculated by using the total source functions due to self-radiation of the primary component and due to the irradiation from the secondary component. We have noted double-peaked emission lines in the case of a static medium and a reduction of emission peaks in the case of velocity field. |
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Keywords: | radiative transfer binaries: close |
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