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

Chan Kao Chang; Hsing Wen Lin; Wing Huen Ip

doi:10.3847/0004-637X/816/2/71

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

Chan Kao Chang, Hsing Wen Lin, Wing Huen Ip

Graduate Institute of Astronomy

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

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.

Original language	English
Article number	71
Journal	Astrophysical Journal
Volume	816
Issue number	2
DOIs	https://doi.org/10.3847/0004-637X/816/2/71
State	Published - 10 Jan 2016

Keywords

general surveys
minor planets, asteroids

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Cite this

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AU - Ip, Wing Huen

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AB - 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.

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

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Keywords

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