A QUICK TEST on ROTATION PERIOD CLUSTERING for the SMALL MEMBERS of the KORONIS FAMILY

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题名:	A QUICK TEST on ROTATION PERIOD CLUSTERING for the SMALL MEMBERS of the KORONIS FAMILY
作者:	章展誥;Chang, Chan-Kao;Lin, Hsing-Wen;Ip, Wing-Huen
贡献者:	理學院天文研究所
关键词:	Asteroids;Clustering;Dispersions;Drift;Indication;minor planets, asteroids: general;Orientation;Poles;surveys
日期:	2016-01-10
上传时间:	2026-04-21 14:47:08 (UTC+8)
出版者:	IOP Publishing Ltd.;The American Astronomical Society
摘要:	摘要： ABSTRACT Rotation period clustering in prograde/retrograde rotators might be the preliminary indication of the Slivan state in the Koronis family as a result of the Yarkovsky-O'Keefe-Radzievskii-Paddack effect. We follow the general scenario of dispersion in the semimajor axis of the asteroid family members to separate prograde and retrograde rotators in the Koronis family. From the available rotation periods obtained from PTF/iPTF, we were unable to find the rotation period clustering of objects with H 12 mag in the Koronis family. This could be the result of the intermittent collisional process of small asteroids (D 20 km) which leads to astray Yarkovsky drifting. Measurement of the pole orientations of our sample will verify our preliminary result and validate our method. 其他題名： APJ 其他題名： Astrophys. J 出版者： The American Astronomical Society 出版日期： 2016-01-10 出處： The Astrophysical journal, 2016-01, Vol.816 (2), p.71-7 資源來源： Institute of Physics Journals 版權： 2016. The American Astronomical Society. All rights reserved. 識別號： ISSN: 0004-637X 識別號： EISSN: 1538-4357 識別號： DOI: 10.3847/0004-637X/816/2/71
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