The Asteroid Rotation Period Survey Using the China Near-Earth Object Survey Telescope (CNEOST),The Astronomical Journal

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The Asteroid Rotation Period Survey Using the China Near-Earth Object Survey Telescope (CNEOST)
The Astronomical Journal ( IF 5.1 ) Pub Date : 2020-07-22 , DOI: 10.3847/1538-3881/ab9a32
Ting-Shuo Yeh , Bin Li , Chan-Kao Chang , Hai-Bin Zhao , Jiang-Hui Ji , Zhong-Yi Lin , Wing-Huen Ip

We initiated the bilateral collaboration between the Lulin Observatory and the Purple Mountain Observatory to collect asteroid lightcurves using the Chinese Near-Earth Object Survey Telescope at the Xuyi Observation Station. The primary goal of this collaboration was to discover super-fast rotators (SFRs) and study their physical properties. Two campaigns have been conducted: (a) a survey of ∼45 deg 2 using 8 minute cadence during 2017 February 26–March 2, and (b) a survey of ∼60 deg 2 using 10 minute cadence during 2018 March 9–12. Our samples are mainly main-belt asteroids and some Hildas and Jupiter Trojans. Out of 4522 collected lightcurves, 506 reliable rotation periods were obtained. Among the reliable rotation periods, we found 16 candidates with a possible rotation period of <2.2 hr, in which (134291) 2006 DZ6 shows a very convincing folded lightcurve and the other 15 candidates only have a likely trend. Further confirmation is needed for the rotat...

更新日期：2020-07-23

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