Database of Comet Polarimetry: Analysis and Some Results |
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| Authors: | Nikolai Kiselev Vera Rosenbush Klaus Jockers Sergey Velichko Sen Kikuchi |
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| Institution: | (1) Institute of Astronomy, Karazin Kharkiv National University, 35 Sumskaya Street, 61022 Kharkiv, Ukraine;(2) Main Astronomical Observatory, National Academy of Sciences, 27 Zabolotnoho Street, 03680 Kyiv, Ukraine;(3) Max-Planck Institute für Sonnensystemforschung, Max-Planck-Strasse, 2, 37191 Katlenburg-Lindau, Germany;(4) School of Physics, Kharkiv National University, 4 Svoboda Sq., 61077 Kharkiv, Ukraine;(5) Takushoku University, Tate-machi 815–1, Hachioji, Tokyo 193–0985, Japan |
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| Abstract: | We present the electronic database (EAR-C-COMPIL-5-DB-COMET-POLARIMETRY-V1.0, NASA Planetary Data System) involving published and some unpublished results of cometary polarimetry. The database contains more than 2600 measurements of linear and circular polarization for 64 comets since 1940s. The narrow-band and wide-band measurements within the spectral region 0.3–2.2 micron are presented. The ranges of phase angles, helio- and geocentric distances of comets are 0.4–122°, 0.6–4.8 AU, 0.03–4.9 AU, respectively. We have comprised more than 60 references to the published papers and unpublished sources. The data we included are presented in a tabular format in the ASCII codes. The database can be used as the observational basis for detailed theoretical modeling, interpretation of the phase-angle and spectral dependence of polarization, classification of comets, laboratory simulating, and for selecting future space-mission targets. Analysis of the available data allowed us to summarize some observed characteristics of linearly and circularly polarized light and their phase-angle, heliocentric, spectral, and spatial dependencies. |
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| Keywords: | Comets database polarization |
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