A search for dwarf planets in the southern hemisphere sky

Details A search for dwarf planets in the southern hemisphere sky A search for dwarf planets in the southern hemisphere sky

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..317b&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.317

Physics

Scientific paper

The population of icy objects in the distant outer regions of the Solar System beyond Neptune offer insight into the early history and evolution of the Solar System. Extensive surveys of this population have previously focussed on the Northern Hemisphere sky. We present our analysis of 9,500 square degrees of sky south of the ecliptic that have more than thirty nights of observation over five years, with an approximate limiting flux of m(clear) 19.5. This is the largest spatial coverage of any existing southern survey for trans-Neptunian objects (TNOs). We generated this survey through an innovative analysis of the more than 500,000 images of the Siding Spring Survey, an ongoing survey for near-Earth asteroids that has been operating at the 0.5 m Uppsala telescope at Siding Spring Observatory since 2004. We discuss the limits that our results place on the dwarf planet-sized end of the TNO population distribution.

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