Table A.5
System names, secondary-to-primary mass ratio (q), semi-major axis (a), eccentricity (e), primary radius (Rp), rotational period of the primary and its critical rotational period (Pp, and Pc), and the λ shape parameter of the primary (λp) and satellite.
| System | q | a | e | R p | λ p | P p | P c | H | SSR | Ref. | ||||||||||
| [km] | [km] | [h] | [h] | |||||||||||||||||
|
|
||||||||||||||||||||
| Haumea-Namaka | 0.001 | 25 657 ± 91 | 0.249 ± 0.015 | 709 ± 50 | 1.49 | 3.92 | 2.09 | 0.32 ± 0.05 | 0.61 ± 0.05 | R09, T10 | ||||||||||
| Haumea-Hi’iaka | 0.01 | 49 880 ± 198 | 0.0513 ± 0.0078 | 709 ± 50 | 1.49 | 3.92 | 2.09 | 0.40 ± 0.05 | 0.61 ± 0.05 | R09, T10 | ||||||||||
| Orcus-Vanth | 0.03 | 8980 ± 23 | 0.001 ± 0.001 | 459 ± 13 | 1.44 | 10.47 | 2.67 ± 0.12 | 0.26 ± 0.02 | 0.29 ± 0.06 | B10, T10 | ||||||||||
| Orcus-Vanth | 0.09 | 8980 ± 23 | 0.001 ± 0.001 | 459 ± 13 | 1.44 | 10.47 | 2.67 ± 0.12 | 0.46 ± 0.02 | 0.29 ± 0.06 | O11, T10 | ||||||||||
| Salacia-Actaea | 0.04 | 5619 ± 87 | 0.02 ± 0.04 | 427 ± 23 | 1.44 | 6.5 | 2.81 ± 0.56 | 0.36 ± 0.07 | 0.49 ± 0.14 | S12, T12 | ||||||||||
| Varda-Ilmarëa | 0.14 | 4200 | 0.0084 | 399 ± 46 | 1.43 | 5.91 | 3.13 | 0.59 | 0.61 | G11b, T13, T12 | ||||||||||
| 2007 TY430b | >0.85 | 21 000 ± 160 | 0.1529 ± 0.0028 | <58 | 1.47 | 9.28 | 4.87 | 4.33 | 0.61 | Sh12, T12 | ||||||||||
| Quaoar-Weywot | 0.0004 | 14 500 ± 800 | ~0.13−0.16 | 569 |
1.45 | 8.84 | 2.39 ± 0.28 | 0.15 ± 0.02 | 0.31 ± 0.12 | F10, T12 | ||||||||||
| Typhon-Echidna | 0.17 | 1628 ± 29 | 0.53 ± 0.01 | 76 |
1.44 | 9.67 | 5.60 ± 0.58 | 0.73 ± 0.06 | 0.66 ± 0.16 | G08, T12 | ||||||||||
| 2001 QY297 | 0.56 | 9960 ± 31 | 0.418 ± 0.002 | 130 ± 21 | 1.62 | 11.68 | 6.13 ± 1.5 | 1.85 ± 0.39 | 0.58 ± 0.21 | G11, T12 | ||||||||||
Notes. Here, we consider the satellites as spherical bodies, therefore λs = 1. The specific angular momentum (H) and the scaled spin rate (SSR) are also reported.
The orbit of Ilmarë is unknown, and only values from the discovery circular are used here. The specific angular momentum and scaled spin rate were computed using a lower limit to the density of 1.11 g cm-3.
The specific angular momentum and scaled spin rate were computed using a lower limit to the density of 0.46 g cm-3, and upper limits to the component sizes.
Reference. G08: Grundy et al. (2008); R09: Ragozzine & Brown (2009); B10: Brown et al. (2010); F10: Fraser & Brown (2010); T10: Thirouin et al. (2010); G11: Grundy et al. (2011b); G11b: Grundy et al. (2011a); S12: Stansberry et al. (2012); T12: Thirouin et al. (2012); Sh12: Sheppard et al. (2012).
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