منابع مشابه
The Atmosphere of Uranus
Cur r en t knowledge of t he a t m o s p h e r e of U r a n u s is rev iewed a n d specific ob jec t ives are sugges ted for sa te l l i te miss ions to U r a n u s . The a n o m a l o u s compos i t ion of U r a n u s m a k e s d e t e r m i n a t i o n s of i ts a t m o s p h e r i c compos i t i on pa r t i cu l a r ly va luab le for t e s t i n g theor ies of solar s y s t e m evolu t ion ....
متن کاملInternal Structure Features of Asphalt Mixture for Field Samples
Asphalt mixture is heterogeneous in nature; therefore, macroscopic parameters alone cannot describe the mechanical behavior of the mixture. In recent years, the arrangement of the aggregate particles in terms of spatial and directional distributions, and contact points are considered as the internal structure of asphalt. The main purpose of this paper is to investigate the microstructural chara...
متن کاملUranus’ aurorae past equinox
The aurorae of Uranus were recently detected in the far 2 ultraviolet with the Hubble Space Telescope (HST) pro3 viding a new, so far unique, means to remotely study the 4 asymmetric Uranian magnetosphere from Earth. We ana5 lyze here two new HST Uranus campaigns executed in Sept. 6 2012 and Nov. 2014 with different temporal coverage and 7 under variable solar wind conditions numerically predic...
متن کاملClouds of Neptune and Uranus
We present results on the bases and concentrations of methane ice, ammonia ice, ammonium hydrosulfidesolid, water ice, and aqueous-ammonia solution (“droplet”) clouds of Neptune and Uranus, based on an equilibrium cloud condensation model. Due to their similar p-T structures, the model results for Neptune and Uranus are similar. Assuming 30–50× solar enhancement for the condensibles species, as...
متن کاملLast giant impact on Uranus
Context. Modern models of the formation of ice giants attempt to account for the formation of Uranus and Neptune within the protoplanetary disk lifetime. These models assume a higher initial surface density well above that of the minimum mass solar nebula model and/or the formation of all giant planets in an inner compact configuration. Other effects include planetesimals migration due to gas d...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1982
ISSN: 0252-9211
DOI: 10.1017/s0252921100082385