搜索结果: 16-30 共查到“天文学 Solar system”相关记录31条 . 查询时间(0.095 秒)
Large Scale Traces of Solar System Cold Dust on CMB Anisotropies
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/24
We explore the microwave anisotropies at large angular scales produced by the emission from cold and large dust grains, expected to exist in the outer parts of the Solar System, using a simple toy mod...
Lunar mission sheds light on early solar system(图)
Lunar mission light early solar system
2010/10/13
The geology of the Moon and the dynamics of the early solar system are much clearer now thanks to three new studies of the lunar surface by NASA's Lunar Reconnaissance Orbiter (LRO). As well as provid...
The solar system is up two million years older than previously thought, according to a pair of researchers in the US. Their work, which is based on dating a meteorite found nestled in the Sahara deser...
Lead-lead (Pb-Pb) dating is among the most widely used radiometric dating techniques to determine the age of really old things, such as the age of the Earth or the Solar System. However, recent advanc...
Satellite reveals surprising cosmic ‘weather’ at edge of solar system
satellite cosmic‘weather’ solar system
2009/10/21
The first solar system energetic particle maps show an unexpected landmark occurring at the outer edge of the solar wind bubble surrounding the solar system. Scientists will publish these maps, based ...
A "bright narrow ribbon snaking its way through the sky" is just one of the puzzling features of the first all-sky maps of the edge of the solar system made by NASA’s Interstellar Boundary Explorer (I...
Solar System Motions and the Cosmological Constant:jA New Approach
Solar System Motions jA New Approach Cosmological Constant
2009/9/4
We use the corrections to the Newton-Einstein secular precessions of the longitudes of perihelia ϖ˙ of some planets (Mercury, Earth, Mars, Jupiter, Saturn) of the Solar System, phenomenologically...
Astronomers have been turning the world's most powerful telescopes toward Jupiter, the solar system's largest planet, ever since Australian amateur astronomer Anthony Wesley discovered a new dark mark...
Global Consequences of the Accretion of the Outer Solar System
Outer Solar System Accretion
2009/6/5
Global Consequences of the Accretion of the Outer Solar System。
Theoretical investigation of cosmic ray processing of solar system ices
cosmic ray solar system ices
2009/5/27
Space ices containing water, carbon- and nitrogen-rich structures are important in certain chemical and radiation induced processes in Solar System dust systems. Up to now there are no detailed invest...
Ultrafast growth of wadsleyite in shock-produced melts and its implications for early solar system impact processes
shock-produced melts system impact processes
2014/4/8
We observed micrometer-sized grains of wadsleyite, a high-pressure phase of (Mg,Fe)2SiO4,
in the recovery products of a shock
experiment. We infer these grains crystallized from shock-generated melt...
THE SCHWARZSCHILD PROBLEM:A MODEL FOR THE MOTION IN THE SOLAR SYSTEM
THE SOLAR SYSTEM large eccentricities A/r + B/r3
2009/3/31
The motion in a field featured by a force function A/r + B/r3
(the Schwarzschild problem) constitutes a realistic model for the dynamics in the
relativistic solar gravitational filed. A qualitative ...