Discovery of Eighteen Transneptunian Binaries

Details Discovery of Eighteen Transneptunian Binaries Discovery of Eighteen Transneptunian Binaries

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.4707n&link_type=abstract

American Astronomical Society, DPS meeting #41, #47.07

Astronomy and Astrophysics

Astronomy

Scientific paper

HST Snapshot program 11113 observed 142 transneptunian objects with the WFPC2 camera on the Hubble Space Telescope between July 2007 and April 2009. We have identified at least 18 of these as binary systems using both direct visual identification and PSF-fitting. The target sample included objects from all dynamical classes, divided approximately as 46\% Resonant, 33\% Scattered, and 21\% Classical. The higher fraction of binaries among low inclination classicals seen in previous surveys continued to be observed with 9 out of 21 such objects found to be double.
This work was supported under NASA contract NAS 5-26555 and HST program 11113.

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