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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50890


    Title: Meteoroids Originating from Near-Earth Asteroid (25143) Itokawa Exist?
    Authors: Ohtsuka,K;Abe,S;Ito,T;Nakamura,T;Abe,M;Yano,H;Watanabe,J
    Contributors: 天文研究所
    Keywords: C MISSION TARGET;APOLLO ASTEROIDS;3200 PHAETHON;1998 SF36;CHONDRITE;METEORITE;STREAM;ORBIT;IDENTIFICATION;HAYABUSA
    Date: 2011
    Issue Date: 2012-03-27 18:12:15 (UTC+8)
    Publisher: 國立中央大學
    Abstract: Making a survey of Itokawids, i.e., meteor(oid)s originating from Apollo-type near-Earth Asteroid (25143) ltokawa, from among the multiple-station optical meteor orbit data, and employing several orbital similarity criteria, we found five Itokawid candidates. Furthermore, we classified the Itokawid candidates in meteorite types according to their physical data. The physical analyses indicate that all of the candidates evidently belong to not cometary, but asteroidal, meteoroids. Especially, the fireball, MORP 172, is the one candidate that is classified among ordinary/carbonaceous chondrites, as against the four other at carbonaceous chondrites. Hence, the classified meteoritic matter of MORP 172 shows more similarities to Itokawa's surface composition of an LL chondrite analogue than those of the other candidates. Therefore, the fireball is considered to be the strongest of the Itokawid candidates.
    Relation: PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
    Appears in Collections:[天文研究所] 期刊論文

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