Population of the Scattered Kuiper Belt | Zendy

Chadwick A. Trujillo | Zendy; David Jewitt | Zendy; Jane Luu | Zendy

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Population of the Scattered Kuiper Belt

Author(s) -

Chadwick A. Trujillo,

David Jewitt,

Jane Luu

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312467

Subject(s) - physics , ecliptic , limiting , astrophysics , astronomy , magnitude (astronomy) , limiting magnitude , population , sign (mathematics) , telescope , nuclear physics , demography , mathematics , mechanical engineering , plasma , sociology , solar wind , engineering , mathematical analysis

We present the discovery of three new scattered Kuiper Belt objects (SKBOs) from a wide-field survey of the ecliptic. This continuing survey has to date covered 20.2 deg2 to a limiting red magnitude of 23.6. We combine the data from this new survey with an existing survey conducted at the University of Hawaii 2.2 m telescope to constrain the number and mass of the SKBOs. The SKBOs are characterized by large eccentricities, perihelia near 35 AU, and semimajor axes greater than 50 AU. Using a maximum likelihood model, we estimate the total number of SKBOs larger than 100 km in diameter to be N=&parl0;3.1+1.9-1.3&parr0;x104 (1 sigma errors) and the total mass of SKBOs to be M approximately 0.05 M plus sign in circle, demonstrating that the SKBOs are similar in number and mass to the Kuiper Belt inside 50 AU.

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