Composition of Jupiter irregular satellites sheds light on their origin
نویسندگان
چکیده
منابع مشابه
Near-Infrared Photometry of Irregular Satellites of Jupiter and Saturn
We present JHK s photometry of 10 Jovian and 4 Saturnian irregular satellites, taken with the Near-InfraRed Imager (NIRI) at the 8-m Gemini North Observatory on Mauna Kea, Hawaii. The observed objects have near-infrared colors consistent with C, P and D-type asteroids, although J XII Ananke and S IX Phoebe show weak indications of possible water features in the H filter. The four members of the...
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An interesting feature of the giant planets of our solar system is the existence of regions around these objects where no irregular satellites are observed. Surveys have shown that, around Jupiter, such a region extends from the outermost regular satellite Callisto to the vicinity of Themisto, the innermost irregular satellite. To understand the reason for the existence of such a satellite–void...
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We investigate a new theory of the origin of the irregular satellites of the giant planets: capture of one member of a ∼100-km binary asteroid after tidal disruption. The energy loss from disruption is sufficient for capture, but it cannot deliver the bodies directly to the observed orbits of the irregular satellites. Instead, the long-lived capture orbits subsequently evolve inward due to inte...
متن کاملImplications for the Origin of Jovian Irregular Satellites from Reflectance
Introduction: Recent dynamical studies of Solar System evolution advance our understanding of the physical distribution of objects out through the Kuiper Belt. In the Nice model [1,2,3], the Jovian planets experienced a violent reshuffling event ~3.9 Gyr ago. In this process, gravitational interaction with planetesimals leaving the planetesimal disk induced slow planetary migration in the jovia...
متن کاملLight curves and colours of the faint Uranian irregular satellites
Context. After the work of Gladman et al. (1998), it is now assessed that many irregular satellites are orbiting around Uranus. Aims. Despite many studies have been performed in past years, very few is know for the light-curves of these objects and inconsistencies are present between colours derived by different authors. This situation motivated our effort to improve both the knowledge of colou...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2017
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201630361