A Change in the Lightcurve of Contact Binary 2001 QG298

Details A Change in the Lightcurve of Contact Binary 2001 QG298 A Change in the Lightcurve of Contact Binary 2001 QG298

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..814l&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.814

Physics

Scientific paper

New observations show that the lightcurve of Kuiper belt contact binary (139775) 2001QG298 has changed substantially since the first observations in 2003. This change is most simply interpreted if QG298 has an obliquity near 90 . Current estimates of the fraction of contact binaries in the Kuiper belt assume that they have randomly oriented spins. If, as QG298, KBO contact binaries tend to have large obliquities their abundance may be higher than previously believed.

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