搜索结果: 1-15 共查到“知识库 恒星与银河系”相关记录734条 . 查询时间(0.922 秒)
中国科学院国家天文台科研人员提出新型构建银河系电子三维分布方法(图)
银河系 电子三维 分布方法
2023/1/11
研究人员利用LAMOST数据发现富含ɑ元素“年轻”恒星的形成机制(图)
LAMOST数据 ɑ元素 “年轻”恒星 形成机制
2023/1/12
东濮凹陷石炭-二叠系煤系烃源岩的生烃演化时空差异性尚存在争议,烃源岩热演化生烃史的定量化研究仍有待进一步深入.利用热模拟实验和盆地模拟技术对烃源岩热演化生烃史进行了系统定量评价.煤系暗色泥岩、煤和碳质泥岩具有相似的生气模式,以Ro为0.5%、1.2%、2.2%、3.15%作为界限,将煤系烃源岩生气作用统一划分为5个阶段,其中主生气期门限Ro为2.2%,对应深度约为5500 m;东濮凹陷石炭-二叠系...
Wei-xiong Huang Explain Cosmic Mysteries-Black Holes Do Not Exist
stellar mass black holes
2015/5/28
1. Celestial body center temperature is proportional to cube root of stellar mass. 2. When stellar temperature exceeds boiling point of all elements, stellar density is inversely proportional to cube ...
Reason Of Stellar Rotation
stellar mass center temperature gasification substances swirl stellar rotation
2015/5/28
When stellar center gasification substance thermal expansion force is greater than stellar center minimum pressure, from stellar center, pressure minimal two symmetrical directions, jet out two shares...
There is a mass very huge star in Milky Way Galactic disk center, known as Milky Way "Nuclear-Star". Nuclear-Star mass exceeds solar mass 9 trillion times. Nuclear-Star center temperature exceed solar...
The AGN fraction of submm-selected galaxies and contributions to the submm/mm-wave extragalactic background light
galaxies contributions
2014/12/22
We present a comparison of the SCUBA half degree extragalactic survey (SHADES) at 450 μm, 850 μm and 1100 μm with deep guaranteed time 15 μm AKARI FU-HYU survey data and Spitzer guaranteed time data a...
THE SIZE EVOLUTION OF PASSIVE GALAXIES: OBSERVATIONS FROM THE WIDE FIELD CAMERA 3 EARLY RELEASE SCIENCE PROGRAM
red galaxies isolates galaxies
2014/12/22
We present results on the size evolution of passively evolving galaxies at 1 . z . 2 drawn from the Wide Field Camera 3 Early Release Science program. Our sample was constructed using an analog to the...
Science drivers and requirements for an Advanced Technology Large Aperture Space Telescope (ATLAST): implications for technology development and synergies with other future facilities
Galaxy Large-Aperture Space Telescope
2014/12/22
The Advanced Technology Large-Aperture Space Telescope (ATLAST) is a concept for an 8-meter to 16-meter UVOIR space observatory for launch in the 2025-2030 era. ATLAST will allow astronomers to answer...
Pressure support versus thermal broadening in the Lyman alpha forest - I. Effects of the equation of state on longitudinal structure
low-density intergalactic gas temperature
2014/12/22
In the low-density intergalactic medium that gives rise to the Lyman α (Lyα) forest, gas temperature and density are tightly correlated. The velocity scale of thermal broadening and the Hubble flow ac...
The four HII regions in the Sgr A East complex: A, B, C, and D, represent evidence of recent massive star formation in the central ten parsecs. Using Paschen-alpha images taken with HST and 8.4 GHz VL...