Interstellar polarization: New approximation |
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Authors: | Yu S Efimov |
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Institution: | (1) Research Institute of Crimean Astrophysical Observatory, National Academy of Sciences of Ukraine, pos. Nauchnyi, Crimea, 98409, Ukraine |
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Abstract: | A new, physically valid, approximation of the wavelength dependences of the degree of linear interstellar polarization P λ observed in a wavelength range from 0.2 to 4 μm is suggested. The data obtained from the ground-based observations and the HPOL and WUPPE space missions on P λ of 104 stars located in a galactic latitude range B from ?20° to +20° are used. This approximation provides better agreement with the observational P λ data than the models by Serkowski (1973) and Whittet et al. (1992) proposed before. |
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Keywords: | interstellar polarisation wavelength dependence |
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