Determination of the physical parameters of gas in the neutral atmospheres of comets: The circular aperture method |
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| Authors: | F I Kravtsov I V Luk’yanyk |
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| Institution: | 1. Astronomical Observatory, National Taras Shevchenko University of Kyiv, ul. Observatornaya 3, Kyiv, 04053, Ukraine
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| Abstract: | A new method—the circular aperture method—is proposed for determining the physical parameters of gas in the neutral atmospheres of comets. A check has shown that this method is applicable to calculate the hydrodynamic velocity of gas outflow and the lifetime of molecules in the neutral atmosphere of comet 2009/P1 (Garradd). |
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