搜索结果: 151-165 共查到“星系形成与演化”相关记录186条 . 查询时间(0.419 秒)
The evolution of disk galaxies
disk galaxies evolution
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2009/6/8
The evolution of disk galaxies。
Galactic Halo Formation and the Evolution of Bias
Galactic Halo Formation Evolution of Bias
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2009/6/5
Galactic Halo Formation and the Evolution of Bias。
The evolution of iron white dwarf stars。
Size and Fraction of Active Surface Area of Some Jupiter Family Comets：Implications with Respect to their Physical Evolution
Active Surface Area Physical Evolution Jupiter Family Comets
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2009/6/5
Size and Fraction of Active Surface Area of Some Jupiter Family Comets：Implications with Respect to their Physical Evolution。
Properties of Disk Galaxies in a Hierarchical Formation Scenario
Galaxies evolution fundamental parameters cosmologyl darak matter
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2009/6/4
Properties of Disk Galaxies in a Hierarchical Formation Scenario。
Transient liquid water near an artificial heat source on Mars
liquid water heat source Mars
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2009/6/1
We describe the response of icy martian soil to a localized heat source using analytical and numerical models. Our motivation is to understand the implications of a landing failure in which a radioiso...
The cosmological, astrophysical, and nucleocosmochronological
methods for estimating the age of the universe and the corresponding
uncertainties are comparatively studied in the present paper.We are...
赫歇尔望远镜将升空 揭恒星诞生之谜（图）
赫歇尔望远镜 恒星诞生
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2009/5/14
据美国太空网报道，日前，功能强大的赫歇尔空间望远镜将发射，通过红外线波谱它将更好地探测宇宙中未曾观测到的物质，比如：探测到水和氧的存在，同时该望远镜还能分析宇宙早期恒星的形成过程。
Effects of the Size of Cosmological N-body Simulations on Physical Quantities– II：Halo Formation and Destruction Rate
Large scale structure of Universe N-body simulations galaxies
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2009/5/12
In this study we show how errors due to finite box size
affect formation and the destruction rate for haloes in cosmological N-body
simulations. In an earlier study we gave an analytic prescription ...
天文学家发现宇宙形成初期的巨大太空“斑点”（图）
天文学家 宇宙形成初期 太空“斑点”
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2009/4/24
美国天文学家日前利用设在地面以及太空中的天文望远镜，观察到宇宙形成初期的巨大太空“斑点”(Blob)，这个太空异象呈放射状分布，最引人瞩目的特点是，它超过银河系一半大。
THE FUTURE OF GALAXIES AND THE FATE OF INTELLIGENT LIFE
GALAXIES gaseous content INTELLIGENT LIFE
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2009/3/19
We investigate the influence of recent advances in research on the
gaseous content of the universe on our knowledge of star formation histories of spiral
galaxies. The discovery of low-redshift popu...
The Fate of Dwarf Galaxies in Clusters and the Origin of Intracluster Stars
Cosmology—galaxies clusters dwarfs interactions—methods numerical
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2010/9/15
The main goal of this paper is to compare the relative importance of destruction by tides vs. destruction by mergers, in order to assess if tidal destruction of galaxies in clusters is a viable scenar...
BROWN DWARF ACCRETION：NONCONVENTIONAL STAR FORMATION OVER VERY LONG TIMESCALES
Stars low-mass,brown dwarfs-Galaxy evolution-ISM general
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2009/2/23
We investigate the process of accretion of interstellar gas by the
Galactic population of brown dwarfs over very long timescales typical for physical
eschatology. In particular, we use the classical...
《自然》：天文学家发现星系诞生新途径（图）
天文学家 星系诞生
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2009/2/23
据美国太空网报道，日前，天文学家发现了星系形成的一种新途径，即“恒星托儿所”区域大嚼遥远的星际气体云。天文学家发现恒星诞生于叫做“狮子环”（Leo Ring）的远古星际气体云，该气体云缺少极为重要的重元素和暗物质，这是天文学家在发育中的星系能够正常看到的物体。“狮子环”的发现暗示着许多星系可能不需要核心物质就能生长形成。据悉，天文学家使用美国宇航局紫外线星系进化（GALEX）探测飞船完成了这项勘测...