| Detection of large color variation in the potentially hazardousasteroid （297274） 1996 SK |
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| 作者姓名： | Chien-Hsien Lin Wing-Huen Ip Zhong-Yi Lin Fumi Yoshida Yu-Chi Cheng |
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| 作者单位： | [1]Space Science Institute, Macau University of Science and Technology, Avenida Wai Long, Taipa,Macau; [2]Institute of Astronomy, National Central University, Zhongli, Taoyuan 32049 [3]National Astronomical Observatory, Osawa, Mitalka, Tokyo 181-8588, Japan |
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| 基金项目： | partially supported by Project 019/2010/A2 of the Macau Science and Technology Development Fund:MSAR No.0166;Taiwan Ministry of Education under the Aim for Top University Program NCU;Lulin Observatory is operated by the Institute of Astronomy,National Central University,Taiwan,under grant NSC 96-2752-M-008-011-PAE |
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| 摘 要： | Low-inclination near-earth asteroid(NEA)(297274) 1996 SK,which is also classified as a potentially hazardous asteroid,has a highly eccentric orbit.It was studied by multi-wavelength photometry within the framework of an NEA color survey at Lulin Observatory.Here,we report the finding of large color variation across the surface of(297274) 1996 SK within one asteroidal rotation period of4.656 ± 0.122 hours and classify it as an S-type asteroid according to its average colors of B- V = 0.767 ± 0.033,V- R = 0.482 ± 0.021,V- I = 0.801 ± 0.025and the corresponding relative reflectance spectrum.These results might be indicative of differential space weathering or compositional inhomogeneity in the surface materials.
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| 关 键 词： | minor planets asteroids individual PHA()—techniques photometric |
Detection of large color variation in the potentially hazardous asteroid(297274) 1996 SK |
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| Chien-Hsien Lin,Wing-Huen Ip,Zhong-Yi Lin,Fumi Yoshida,Yu-Chi Cheng.Detection of large color variation in the potentially hazardous asteroid(297274) 1996 SK[J].Chinese Journal of Astronomy and Astrophysics,2014(3):311-318. |
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| Authors: | Chien-Hsien Lin Wing-Huen Ip Zhong-Yi Lin Fumi Yoshida Yu-Chi Cheng |
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| Abstract: | 天文学 天文理论 天文观测台 天文观测方法 |
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| Keywords: | 天文学 天文理论 天文观测台 天文观测方法 |
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