搜索结果: 1-15 共查到“天文学 3D”相关记录31条 . 查询时间(0.234 秒)
科技日报北京2022年1月16日电 （记者张梦然）美国暗能量光谱仪（DESI）项目打破了之前所有3D星系调查的纪录，在完成前7个月的调查后，创建了有史以来最大、最详细的宇宙地图。这张极其详细的3D地图将有助于更好地了解暗能量及宇宙的过去和未来。调查使用的技术和取得的成就也将帮助科学家们揭示宇宙中最强大光源的秘密。
After gazing at Jupiter’s Great Red Spot and the planet’s gaseous cloudy realm, NASA’s Juno spacecraft and its microwave radiometer have provided humanity’s first 3D, turbulent sense of what lies far ...
形成希克苏鲁伯陨石坑的小行星撞击，曾对地球环境带来毁灭性影响。近日《自然·通讯》杂志发表的一项行星科学研究中，英国科学家确定了希克苏鲁伯陨石的撞击轨迹，认为墨西哥的希克苏鲁伯陨石坑是由一次较大倾角（与水平面夹角45°—60°）的小行星撞击造成的。造成希克苏鲁伯陨石坑的小行星撞击事件，发生在约在6600万年前。据科学家推测，这一撞击足以引发大海啸、地震和火山爆发，撞击之后大量灰尘进入大气层，完全遮蔽...
加拿大滑铁卢大学和法国国家科研中心巴黎天体物理学研究所的天体物理学家，共同绘制出以银河系为中心的宇宙邻域3D地图，跨度近20亿光年。这是迄今描绘银河系周围宇宙状况的最完整图景，藉此可观察星系移动差异以确定物质和暗物质的分布情况。相关研究成果公布在最新一期《英国皇家天文学会月刊》的同行评审在线期刊上。
3D打印再现奇异星系（图）
3D打印 奇异星系
2015/1/14
去年，美国宇航局（NASA）的科学家利用银河系的一个最奇异和猛烈恒星系统（船底座海山二星）把轨道观测和陆基观测联系在一起。船底座海山二星是一个由两颗巨大的不稳定恒星组成的联星系统，每5.5年彼此绕行一周。“它是一个不稳定的恒星巨怪。”NASA位于马里兰州格林贝尔的戈达德太空飞行中心天文学家Michael Corcoran在近日举行的美国天文学协会新闻发布会上表示。这个巨大的恒星系统（一颗恒星是太阳...
哈勃望远镜自发射以来已经为我们带来无数张震撼的宇宙图片，还记得2010年推出的关于哈勃望远镜的3-D IMAX电影，镜头从行星系一直拉伸到星系(团)，众多星系错综复杂地交织在一起，似乎有一张无形的网将它们“牵制”，这就是宇宙的大尺度结构。现在，科学家创建了一个3D地图显示出90亿年前的宇宙大尺度结构，酷似DNA双螺旋结构，无数的星系“镶嵌”在网状的长丝结构中，为我们揭开宇宙演化的奥秘。
A 3D radiative transfer framework: XIII. OpenCL implementation
Radiative transfer – Scattering
2011/10/20
We discuss an implementation of our 3D radiative transfer (3DRT) framework with the OpenCL paradigm for general GPU computing. We implement the kernel for solving the 3DRT problem in Cartesian coordin...
A 3D Photoionization Model of the Extreme Planetary Nebula NGC 6302
planetary nebulae: individual: NGC 6302, ISM: abundances
2011/10/13
We present a 3D photoionization model of the PN NGC 6302, one of the most complex objects of its kind. Our Mocassin model is composed of an extremely dense circumstellar disk and a large pair of diffu...
Analysis of 3D MHD Instability of Antisolar Latitudinal Differential Rotation in F, G and K stars
Analysis Instability Latitudinal Differential Rotation
2011/10/8
Motivated by observations that only a very few stars have been found to have antisolar differential rotation, much weaker in amplitude than that of the Sun, we analyze the stability of antisolar and s...
Determination of Acceleration from 3D Reconstruction of Coronal Mass Ejections Observed by STEREO
Determination Acceleration Reconstruction Ejections Observed
2011/9/30
We employ a three-dimensional (3D) reconstruction technique, for the first time to study the kinematics of six coronal mass ejections (CMEs), using images obtained from the COR1 and COR2 coronagraphs ...
英国绘制最完整宇宙3D图 广度达3.8亿光年（图）
英国 完整 宇宙 3D图
2011/5/30
英国天文学家最近公布了迄今为止最完整的3D版宇宙图像，这份英国普兹茅斯大学的MASS红移巡天图(2MRS)广度达到3.8亿光年，历时10年多测绘而成。这份星系图比之前绘制的图像更接近银道面。
Induced Rotation in 3D Simulations of Core Collapse Supernovae: Implications for Pulsar Spins
Induced Rotation 3D Simulations Core Collapse Supernovae
2011/1/11
It has been suggested that the observed rotation periods of radio pulsars might be induced by a non-axisymmetric spiral-mode instability in the turbulent region behind the stalled supernova bounce sho...
3D numerical MHD modeling of sunspots with radiation transport
MHD – radiative transfer – Sun sunspots – Sun photosphere – Sun magnetic
2010/11/10
Sunspot fine structure has been modeled in the past by a combination of idealized magneto-convection simulations and simplified models that prescribe the magnetic field and flow structure to a large d...
Uncovering Mechanisms of Coronal Magnetism via Advanced 3D Modeling of Flares and Active Regions
Uncovering Mechanisms of Coronal Magnetism 3D Modeling of Flares Active Regions
2010/11/15
The coming decade will see the routine use of solar data of unprecedented spatial and spectral resolution, time cadence, and completeness. To capitalize on the new (or soon to be available) facilities...
Spiralling out of control: 3D hydrodynamical modelling of the colliding winds in $\eta\thinspace$Carinae
hydrodynamics stars:early-type X-rays stars - stars binaries - stars:winds
2010/11/10
Three dimensional (3D) adaptive-mesh refinement (AMR) hydrodynamical simulations of the windwind collision between the enigmatic super-massive star η Car and its mysterious companion star are presente...