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Detection of Two Binary Trans-Neptunian Objects, 1997 CQ29 and 2000 CF105, with the Hubble Space Telescope

Noll, Keith S. and Stephens, Denise C. and Grundy, Will M. and Millis, Robert L. and Spencer, John and Buie, Marc W. and Tegler, Stephen C. and Romanishin, William and Cruikshank, Dale P. (2002) Detection of Two Binary Trans-Neptunian Objects, 1997 CQ29 and 2000 CF105, with the Hubble Space Telescope. The Astronomical Journal, 124 (6). pp. 3424-3429. ISSN 1538-3881

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Publisher’s or external URL: http://dx.doi.org/10.1086/344762

Abstract

Images of the trans-Neptunian objects 1997 CQ29 and 2000 CF105 obtained with the Hubble Space Telescope WFPC2 camera show them to be binary. The two components of 1997 CQ29 were separated in our images by 020 ± 003 in 2001 November and by 033 ± 001 in 2002 June/July. The corresponding minimum physical distances are 6100 and 10,200 km. The companion to 2000 CF105 was 078 ± 003 from the primary, at least 23,400 km. Six other objects in the trans-Neptunian region, including Pluto and its moon Charon, are known to be binaries; 1997 CQ29 and 2000 CF105 are the seventh and eighth known pair. Binarity appears to be a not uncommon characteristic in this region of the solar system, with detectable companions present in 4% ± 2% of the objects we have examined.

Item Type: Article
Publisher’s Statement: Copyright 2002. The American Astronomical Society.
ID number or DOI: 10.1086/344762
Keywords: charge-transfer efficiency; KUIPER belt; kuiper-belt objects; oort cloud; Pluto; satellite; spectra; wfpc2
Subjects: Q Science > QB Astronomy
Department/Unit: College of Engineering, Forestry, and Natural Science > Physics and Astronomy
Date Deposited: 28 Mar 2016 20:59
URI: http://openknowledge.nau.edu/id/eprint/1864

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