Tales from the outer solar system 8 IT

Tales from the outer solar system (8) (IT SHOULDN’T) Mike Brown Caltech

Meg Schwamb Wes Fraser Darin Ragozzine Alex Lockwood Konstantin Batygin Emily Schaller Michele Bannister David Rabinowitz Chad Trujillo

U Plutinos 3: 2 2: 1 ssing cro tune Nep scattered KBOs classical KBOs N

Picture of oschin, with radio link with Chad Trujillo & David Rabinowitz

Brown, Trujillo, Rabinowitz

Haumea Snow White

S J U N P

Where did it come from? -in situ formation -scattered by modest-sized planet @ ~70 AU -close stellar encounter

Where did it come from? -in situ -scattered by modest-sized planet @ ~70 AU -close stellar encounter

Where did it come from? -in situ -scattered by modest-sized planet @ ~70 AU -close stellar encounter -dense stellar birth environment

Schwamb, Brown, Rabinowitz 2009

241. 02 Snow white Sedna Schwamb, Brown, Rabinowitz 2009

Schwamb, Brown, Rabinowitz 2009

Haumea Snow White

25% 2 hours Rabinowitz et al. 2005

ρ = 2. 6 g/cm 3 Weidenshilling 1983

Trujillo et al. 2006

V=17. 5 FWHM=0. 063 Strehl=0. 18

Haumea Hi’iaka

Canup 2005

Brown et al. 2007

EL 61 Haumea (12: 7) Isotropic v = 150 m/s Ragozzine Sw. RI Colloquium 1999 OY 3 (7: 4) Resonance Diffusion

1999 OY 3 (7: 4) EL 61 Haumea (12: 7) Resonance Diffusion 2003 UZ 117 Isotropic v = 150 m/s 2005 CB 79 Ragozzine Sw. RI Colloquium Schaller and Brown 2008

V=17. 5 FWHM=0. 063 Strehl=0. 18

UNSTABLE 49 -day period e = 0. 05 Mp ≈ 1/3 Pluto

Results Masses: 0. 5% and 0. 05% Ecc: 0. 05 and 0. 23 Mutual inc: 13 degrees Mean-motion ratio: near 8: 3 Ragozzine J 2+spin pole Colloquium Sw. RI

Model Dependent Satellite Masses, Albedos, Densities

Brown, Trujillo, Rabinowitz

And they all lived happily at least for a few Gyr. The End