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Table 2

Orbital and physical parameters of the Haumea system.

Mass (ma) Size (ra) Sib E Si c E Tides d δT e
(kg) (km) (%) (W) (W) (K s-1)

Haumea 4.00 × 1021 690 88–97  ≈1010  ≈5 × 109 6 × 10-16
Hi’iaka 1.8 × 1019 195  ≤10  ≈107  ≈107 3 × 10-16
Namaka 2 × 1018 100  ≤10  ≈106  ≈107 6 × 10-15

Notes. 

(b)

silicate content in mass (Si) estimated from the body’s density,

(c)

subsequent radiogenic energy,

(d)

the total energy available from tidal dissipation,

(e)

resulting temperature rate.

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