R- and I-band photometry of 506 asteroids with CNEOST Virtual Observatory Resource

Authors
  1. Yeh T.-S.
  2. Li B.
  3. Chang C.-K.
  4. Zhao H.-B.
  5. Ji J.-H.
  6. Lin Z.-Y.
  7. Ip W.-H.
  8. Published by
    CDS
Abstract

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 8minute cadence during 2017 February 26-March 2, and (b) a survey of ~60{deg}^2^ using 10minute 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 <2.2hr, 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 rotation periods of these SFR candidates. In addition, (2280) Kunikov seems to have an eclipsing feature on its lightcurve with a relatively long rotation period suggesting that it is likely a fully synchronized binary asteroid. When the preliminary spin-rate distributions were carried out for asteroids using different sizes, no obvious difference was found.

Keywords
  1. asteroids
  2. infrared-photometry
  3. visible-astronomy
  4. photometry
Bibliographic source Bibcode
2020AJ....160...73Y
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/160/73
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/160/73
Document Object Identifer DOI
doi:10.26093/cds/vizier.51600073

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History

2020-11-05T07:26:44Z
Resource record created
2020-11-05T07:26:44Z
Created
2022-03-08T08:49:43Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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cds-question@unistra.fr