Broadband linear polarization of Jupiter Trojans
Broadband linear polarization of Jupiter Trojans
复制标题
木星木马的宽带线性极化
DOI：
10.1051/0004-6361/201526889
复制
发表时间：
2016
影响因子：
6.5
通讯作者：
Bagnulo S
中科院分区：
文献类型：
--
作者：
Bagnulo S
ContextTrojan asteroids orbit in the Lagrange points of the system Sun-planet-asteroid. Their dynamical stability make their physical properties important proxies for the early evolution of our solar system.AimsTo study their origin, we want to characterize the surfaces of Jupiter Trojan asteroids and check possible similarities with objects of the main belt and of the Kuiper Belt.MethodsWe have obtained high-accuracy broadband linear polarization measurements of six Jupiter Trojans of the L4 population and tried to estimate the main features of their polarimetric behaviour. We have compared the polarimetric properties of our targets among themselves, and with those of other atmosphere-less bodies of our solar system.ResultsOur sample show approximately homogeneous polarimetric behaviour, although some distinct features are found between them. In general, the polarimetric properties of Trojan asteroids are similar to those of D- and P-type main-belt asteroids. No sign of coma activity is detected in any of the observed objects.ConclusionsAn extended polarimetric survey may help to further investigate the origin and the surface evolution of Jupiter Trojans.
