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Polarimetry of the E-type asteroid 64 Angelina |
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| Authors: | S V Zaitsev N N Kiselev V K Rosenbush S V Kolesnikov K A Antonyuk |
| Institution: | 1. Main Astronomical Observatory, National Academy of Sciences of Ukraine, ul. Akademika Zabolotnoho 27, Kyiv, 03680, Ukraine 2. Astronomical Observatory, Mechnikov University, Shevchenko Park, Odessa, 270014, Ukraine 3. Crimean Astrophysical Observatory, National Academy of Sciences of Ukraine, p/o Nauchnyi, Crimea, 334413, Ukraine |
| Abstract: | Results of polarimetric observations of a high-albedo asteroid 64 Angelina obtained in the phase-angle range from 0.8° to 24.3° are presented. The observations were carried out in the period from September 28 to October 9, 2008, and on November 15, 2011, and September 18, 2012, with the 1.25-m and 2.6-m telescopes of the Crimean Astrophysical Observatory equipped with a five-color double-beam photopolarimeter and a single-channel photometer-polarimeter, respectively. Our observations confirm the polarimetric opposition effect in asteroid 64 Angelina at small phase angles and well agree with the other observations. The obtained results are discussed in terms of the currently available models of the light scattering by regolith surfaces. |
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