Animation of Saturn's Inuit group of satellites Kiviuq·Ijiraq·Paaliaq·Siarnaq·TarqeqDiagram illustrating the orbits of the irregular satellites of Saturn, showing the three Inuit subgroups. The inclination and semi-major axis are represented on the Y and X-axis, respectively. The satellites with inclinations below 90° are prograde, those above 90° are retrograde. The X-axis is labeled in terms of Saturn's Hill radius.
The group appeared quite homogeneous in early observations, the satellites displaying light-red colour (colour indices B−V = 0.79 and V−R = 0.51, similar to that of the Gallic group)[1] and similar infrared spectra.[2] Recent observations, however, revealed that Ijiraq is distinctly redder than Paaliaq, Siarnaq and Kiviuq. In addition, unlike the other three, Ijiraq's spectrum does not display weak absorption near 0.7 μm. This feature is attributed to a possible water hydration.[3]
The spectral homogeneity (with the exception of Ijiraq) is consistent with a common origin in the break-up of a single object but the dispersion of the orbital parameters requires further explanation. Recently reported secular resonances among the members could provide the explanation of the post-collisional dispersion.
The thirteen known members of the Inuit group are (sorted alphabetically in their respective subgroups, which in turn are ordered by distance from Saturn):
^Grav, Tommy; Holman, Matthew J.; Gladman, Brett J.; Aksnes, KaarePhotometric survey of the irregular satellites, Icarus, 166,(2003), pp. 33–45. Preprint
^Tommy Grav and Matthew J. HolmanNear-Infrared Photometry of the Irregular Satellites of Jupiter and Saturn,The Astrophysical Journal, 605, (2004), pp. L141–L144 Preprint
^Tommy Grav and James Bauer A deeper look at the colors of Saturnian irregular satellites, Preprint
inuit, group, dynamical, grouping, prograde, irregular, satellites, saturn, which, follow, similar, orbits, their, semi, major, axes, range, between, their, inclinations, between, their, eccentricities, between, they, take, about, years, orbit, saturn, animati. The Inuit group is a dynamical grouping of the prograde irregular satellites of Saturn which follow similar orbits Their semi major axes range between 11 and 18 Gm their inclinations between 40 and 50 and their eccentricities between 0 15 and 0 48 They take about 2 years to orbit Saturn Animation of Saturn s Inuit group of satellites Kiviuq Ijiraq Paaliaq Siarnaq TarqeqDiagram illustrating the orbits of the irregular satellites of Saturn showing the three Inuit subgroups The inclination and semi major axis are represented on the Y and X axis respectively The satellites with inclinations below 90 are prograde those above 90 are retrograde The X axis is labeled in terms of Saturn s Hill radius The International Astronomical Union IAU uses names taken from Inuit mythology for these moons The group appeared quite homogeneous in early observations the satellites displaying light red colour colour indices B V 0 79 and V R 0 51 similar to that of the Gallic group 1 and similar infrared spectra 2 Recent observations however revealed that Ijiraq is distinctly redder than Paaliaq Siarnaq and Kiviuq In addition unlike the other three Ijiraq s spectrum does not display weak absorption near 0 7 mm This feature is attributed to a possible water hydration 3 The spectral homogeneity with the exception of Ijiraq is consistent with a common origin in the break up of a single object but the dispersion of the orbital parameters requires further explanation Recently reported secular resonances among the members could provide the explanation of the post collisional dispersion Contents 1 Names 2 See also 3 Notes 4 References 5 External linksNames editThe thirteen known members of the Inuit group are sorted alphabetically in their respective subgroups which in turn are ordered by distance from Saturn Kiviuq Ijiraq S 2005 S 4 S 2019 S 1 S 2020 S 1 Paaliaq Siarnaq Tarqeq S 2004 S 31 S 2019 S 6 S 2019 S 14 S 2020 S 3 S 2020 S 5See also editList of natural satellitesNotes editReferences edit Grav Tommy Holman Matthew J Gladman Brett J Aksnes Kaare Photometric survey of the irregular satellites Icarus 166 2003 pp 33 45 Preprint Tommy Grav and Matthew J Holman Near Infrared Photometry of the Irregular Satellites of Jupiter and Saturn The Astrophysical Journal 605 2004 pp L141 L144 Preprint Tommy Grav and James Bauer A deeper look at the colors of Saturnian irregular satellites PreprintExternal links editMean orbital parameters from JPL Portals nbsp Astronomy nbsp Stars nbsp Spaceflight nbsp Outer space nbsp Solar System Retrieved from https en wikipedia org w index php title Inuit group amp oldid 1163240952, wikipedia, wiki, book, books, library,
