OSSOS XX: The Meaning of Kuiper Belt Colors

Observations show that 100-km-class Kuiper belt objects (KBOs) can be divided in (at least) two color groups, hereafter red (R, g-i 1.2), reflecting a difference in their surface composition. This is thought to imply that KBOs formed over a relatively wide range of radial distance, r. The cold classicals at 42 r*, with 30

Keywords:

• Astrophysics
• Physics
• Bimodality
• Astronomy
• Population
• Neptune

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